Open Know-How Search

Nick D.

Rope pumps are an incredibly easy and cost effective way of raising water to the surface. The main hindrance is the valves that go on the ro...

Sjhelmin

Rear Bike rack

Jacob Burns

Our objective for the water project for the 2014 Practivistas Dominicana Program in La Yuca is to replace the flat piping system, used to ca...

Mcbrand

This OSAT prototype is a community comment box where members can drop in comments that can not be removed other than by removing the lock fr...

Hschabes

It allows people to create their own dust masks to fit the correct size (by scaling up or down), and it uses more readily available material...

Jafranz

This tool head once complete will be the first Lulzbot compatible FPF-style extruder assembly.

StowieJ

This project aims to fill the need for a small item that can be placed in a car, which serves the purpose of clearing snow and large ice fro...

Jcismith

The purpose of this build was to make it easier and more convenient for individuals around the world to construct shelters with the resource...

Eric420

The objective of this project is to improve upon the previous summer’s project. The turbine design will be altered so that it may be more ef...

Rnmcfarl

The overall goal of this project is to make open source models of as many bicycle parts as possible.

Handychandra7

an adjustable heated bed that we could adjust to heat only the parts that we want to print on.

Klbarie

This Bottle Stripper turns PET bottles into long strips that can be used to weave baskets, use as fishing line, use as a type of rope, or po...

Mikehartl

This is a 3D printable hand drill which can be used to drill holes in any soft material such as wood. This design is based largly of old ant...

Lwilder

This OSAT is a heavy-duty rope pulley that can be used to raise water from a well [1]. This pulley can be customized to any desired size, an...

Wcvenis

This is a cross-flow turbine[1], basically a water wheel turned by stream to produce energy. This provides energy without the cost of fossil...

Amciesla

Can Opener

Pdspillm

A simple item often needed is a pair of tweezers – used for a range of purposes, from removing foreign bodies to handling sterile bandages. ...

Ctnoonan

The purpose of this project is to create a low embedded energy, natural, beautiful way to cook pizza.

Will Omberg

This reduces the smell and pathogens that are present in the toilet. Excess moisture in the toilet creates an anaerobic environment which pr...

D4r3llo5

Hinges

Kerautio

The purpose of this tool is to quickly remove fasteners after they have been broken loose using a breaker bar or ratchet. This tool is meant...

Azw

This is a twisted tent stake designed for use in more challenging soil types.

S.Seemann

Simple and easy to produce, temporary housing platform to to aid in living conditions after a natural disaster

Richard Bowman

A delta-bot stage based on the OpenFlexure design

Molson

The current setup on the Athena II printer is not suited for flexible materials like ninja flex. Due to the bowndeth sheath setup we mostly ...

Gridiron

The purpose of this project is to replace the current play structure at the Redwood Coast Montessori School (RCMS) and the Manila Community ...

Limitless285

This object was created using FreeCAD for the use of the Principia College Science Department. Its initial use is for their optics lab. One ...

Ldstetsk

A universal, ergonomic handle, and update two tools to interchange easily with a handle.

8rmf

A thermostatic valve for a solar water pasteurization device.

Bchaupt

The cassava press designed as a piece of open source hardware is a small scale press that could be used in a household, or for personal use ...

Josh Mucinski

This project was to replicate the already produced gravity light into the 3D Printed and open source world.

Dhwani

it is an ideal for mixing samples in blood and centrifuge tubes.

Btjoseph

This printable design requires some filament (preferable ABS), a tea bag, and activated carbon to create. This allows the user to drink filt...

Mark Hansen

The idea behind this prototype is that you can buy a singular block and then scale the layout later. This design for a scalable aquaponics s...

Atballou

The pocket wrench is an excellent example of OSAT. Wrenches are a universal necessity, especially in third world countries where buying some...

Nick D.

This extruder allows you to create cheap filament from ground/pelletized plastic

Alexander Kutschera

Here we work on the development of software tools and a low-cost open hardware setup to study how bacteria move.

Dhwani

This project , has been designed to help such people. The load carrier is designed in such a way , that the weight of is evenly distributed ...

141.219.102.164

The main goal of this project is to be able to make a robust, self correcting filament extruder to be used to work with any filament or recy...

Travis W.

This thumb splint for broken or sprained thumbs was designed to be an durable but affordable parametric brace. The design prints in two flat...

Goliath182

This tool can also dig out weeds in farms. Up until now options of very low cost hoes was very limited.

Jclawson

This project is made for people who wish to pick unreachable fruit from trees. Forcing fruit out of a tree causes it to bruise and spoil qui...

J.Arthur

Baling materials on such as hay, straw or leafs has many advantages as these bales are typically used to store excess materials or feed anim...

Dlbrinks

Electric/electronic devices, designed to run on 3 volts (traditionally 2 AA, AAA, C, D alkaline batteries), are quite prolific around the wo...

Haley alexis

This fruit crusher project is designed for less developed countries that do not have access to the technology that other countries have

The Dean

The idea of evaporating sea water in order to turn it into freshwater has been around for centuries or more. The technology has been used on...

Smwurst

This Open Source Appropriate Technology (OSAT) fulfills a request for pipette accessories on the "Requests for 3-D printable open source app...

Pnjensen

This stethoscope avoids that by using an electret microphone and audio amplifier to drive a pair of earbuds. This allows for high amplificat...

141.219.58.255

This GPS clip is an attempt to alleviate that issue by allowing a user to mount a GPS to a belt, backpack strap, or other webbing attachment...

Jcsteupe

This product brings out these ports and makes it mindless to plug in cables while driving. Soon there will be options for a shelf as well.

Daniel Donovan

The need that this fulfills is to provide light to any area without the need for a power/electrical hookup, as well as possibly providing a ...

Kev Man

Laser Trip-wire shut-off for Delta Printer

Athachir

The yarn can be used as threads in the textile industry

Wedallma

The ratchet is a fairly common tool in today's world. A major advantage of a ratchet is that many tool attachments can be put on the ratchet...

Erik.Wachlin

This design is tough to make by hand, but is a lot more efficient than a water wheel.

Bastallw

The modular pegboard is designed to replace more costly methods of tool storage. I chose to create a customizable pegboard due to the large ...

TrystanLea

Energy monitoring electronics

Jacob.huss

First, this will be useful in education, where protractors can be used to help teach geometric concepts. Additionally, they can be used in c...

Shaunakmhatre

There are water droplets accumulated on the top of that surface. This is usually seen when a cold water is kept in a glass or early morning ...

Bubbad997

This device is used to collect a small fecal sample for testing. This can range from DNA testing to testing for disease. Fecal matter can te...

Otto DIY Workshop

Otto is truly Opensource robot for education; it means the hardware is easily discerned so that others can make it, is also Arduino compatib...

Cd102

The object of our project is to take organic waste including dog, cow, and horse excrement, as well as kitchen waste and recycle it. Methane...

Julian Stirling

Simple illumination for the OpenFlexure microscope. This is simply a mounted LED and resistor.

Kyle basnett

Design and install a safe, easy to use and maintainable rain water catchment system.

Jmbrooki

In the most basic form, a seed drill is a device that will position seeds in soil, without waste. This idea was an improvement over sowing s...

Alwoern

This project is an upgrade on the current Recyclebot v5 cooling section. The previous design uses a top-down approach at cooling off the fil...

Cryofixated

The first main taks and what this tool is made for is spreading grout for tiling.

Chelsea

By building garden beds and growing within a controlled environment will make the plants grow healthier and also will prevent toxic chemical...

Dana Martin

This display will be hands-on where a child can use their own power to operate an electronic device. The importance of this project is to pl...

Raclark

Lucky iron totems composition must be monitored to ensure that toxic levels of elements are not going to be absorbed by the food cooked in t...

Alan Freeman

This megaphone is OSAT appropriate because there are practical uses for such a device in developing countries. A few examples would be alert...

Ldgaines

Surgical retractors are used in order to hold tissue aside while surgery is performed on some underlying bodily structure. Depending on the ...

Jérémy Bonvoisin

The “ball-sorting machine” is a work-in-progress concept of a purely mechanical machine capable of sorting balls by weight order using a sel...

Alexander Kutschera

It consists of modular test tube holding chambers, each with a low power monochromatic light-emitting diode, and a monolithic photodiode. A ...

Ngtanike

This equipment can be used to sow seeds with relative ease, compared to hand sowing. This product was designed for minimum number of parts a...

Teco9860

The Flock House project is a concept to provide a new form of housing for different migrating populations throughout the world.

Azw

PC104 stacks are commonly used in automation and controls applications which could be a potentially hazardous environment for sensitive elec...

Jcpaulse

The mineral sifter is an excellent example of OSAT. Sifters are a major time saver, especially in third world countries where simple applian...

Djchopp

A clamp is used in many stages of manufacturing and assembly. Holding things in place during these processes will yield higher quality parts...

Brian Chow

OSP is a low-cost open-source plate reader built out of the [Chow Lab](http://chowlab.seas.upenn.edu/) and the [George H. Stephenson Foundat...

Ntmoegge

Countries that are not as developed as the United States and others have access to very little running water, if any at all. This means that...

Blgregor

A disabled person can sit in these chairs normally, remove the seat to expose a bucket as a toilet, and dispose of excrement by removing the...

J.M.Pearce

A customizable open-source PV racking concept is designed, prototyped for three types of modules, constructed into systems, and outdoor test...

Ab91

This part was built to meet the needs of one of our professors; Dr. Greshenson, that heads a bike Enterprise program at Michigan Tech.

Jcvieau

The Bow and hand drill set will provide the ability of a knowledgeable individual to create fire with relative ease The simple design has wi...

J.M.Pearce

The combination of open-source software and hardware provide technically feasible methods to create low-cost, highly-customized scientific r...

Ejweiden

An otoscope is a medical instrument or device used to examine of the eardrum and the passage of the outer ear, which can be dificult to see ...

Aaron.cranford

This provides a cheap alternative for either single use or could be used to make a big jump rope for 3+ people at a time.

Cmphilo

This is meant to be used by EMT or other first responders for immobilizing a head and neck after major trauma, keeping the head steady durin...

Teshawar

Proper growth of infants and young children is paramount to the development of well-functioning adults. Hospitals in developing countries la...

Amwallis

An otoscope is simple device used in the diagnosis of ear, nose, and throat diseases. It is essentially a magnification lens with a light an...

Rtlester

The posts are of a modular design, and can be built up to allow for more coral to be placed on a single vertical post. The rods slide throug...

Mackspletch

This charcoal pen is useful in developing countries as some school supplies cannot be found and afforded in low class towns and villages

Jcgerdt

This snap system can be ultered to be size appropriate for the job it is needed for. This design is based off of a sew in style, has holes t...

Nsplahn

3D printed parts are able to be rapidly produced at low cost making them ideal for disposable medical equipment. In areas where advanced med...

J.M.Pearce

This is a butterfly bicycle handlebars designed to fit 25.4 mm clamp.

Kylar stern

This is a shovel handle to either replace broken ones, or add one in where the shovel/hoe/whatever tool has only the wooden handle. Grips su...

Btrevett

This 3D printable straw filter should allow for cheaper and more readily available access to clean water at a lower price as most of the com...

Twfuller

Spigots manufactured for self-attachment typically rely on large gaskets to maintain a seal, which works with varying success on the curved ...

Zmalinow

The design of the shovel is to be very wide to improve scoping efficiency.

Acroche

This limb prosthetic could be used in areas where such would be hard to come by or too expensive to buy. It could also be used for someone w...

5gc17

The depth adjustable rope pump uses an adjustable pipe system to solve these problems. Using only one PVC pipe size to draw up water at any ...

Erik Bain

Since bicycles are used for transportation, a cargo rack is a helpful accessory for hauling goods or personal items. A 3D printable cargo ra...

J.M.Pearce

Nitrate, the most oxidized form of nitrogen, is regulated to protect people and animals from harmful levels as there is a large over abundan...

Caaukee

This design is a 3D printed potato ricer. Potato ricers work by extruding cooked potato (or possibly other starch rich foods) through small ...

Ejmarsha

This trowel would help fulfill the needs of affordable tools for concrete and interior work on houses and buildings in developing countries....

Mjreich

Honey Forge for bees that are constantly losing their natural habitat.

Rgjones

An easy treatment in the earlier stages of the injury can be the use of ankle splints during sleep which helps lengthen the plantar fascia t...

Mrhelmke

Planes are tools which are used to shape wood by removing thin uniform strips of wood. There are many types of planes, as a start this is a ...

Hpgetsch

The rain chain directs the water down the chain from the spout and can be collected into a bucket or place where a puddle is okay to form. T...

Myles

This brick footing serves to keep natural plasters and infill material from coming in direct contact with the ground

Spoonless

This chain tensioner can be used to address issues with chain hopping, chain slap, and rattles.

DomT

The objective is to fix the ecoladrillo schoolroom by adding a new plaster to the walls, fixing the floor, and fixing the ventilation of the...

Jack Hicks

This device collects rain water in a water bottle or any container that has standard bottle threads. It includes a purge container that coll...

Pratiksha

Laser Trip-wire shut-off for Delta Printer

TimBassler

The design is made using OpenSCAD and is mostly parametric, allowing for adjustments in volume, wall thicknesses, and pouring hole sizes to ...

Rmputzig

This type of clip is found on a variety of items, most commonly backpacks, and work well. However, I have found that if you break one, it is...

Leandra

The goal of the project was to implement a solution that would protect and beautify the cob installations at CCAT

5sg12

The proposed design utilizes a recycled bottle and cap (with a cap diameter equal to or greater than that of a 2L pop bottle) as a portable,...

Takrapek

This is a Spoon multi-tool that was built using open-source technology. It is appropriate because it takes something relatively important an...

Tom Baden

Understanding of how neurons encode and compute information is fundamental to our study of the brain, but opportunities for hands-on experie...

Maxime Zimmermann

Two-photon (2P) microscopy is a cornerstone technique in neuroscience research, but combining this technology with spectrally arbitrary ligh...

Fordahl

A nebuliser works by using compressed air to convert liquid medicine to an aerosol that can be inhaled by the patient.

T peters

The doughnut shaped design will not allow the arrow to leave the rest while the bow is positioned in any shooting angle, the parts are stout...

Pjgoreck

This is a 3D printed Security Siren that could be used in low income areas where theft or other problems are an issue. The purpose of the si...

Tmjohnst

Wolves are a problem with reindeer husbandry. This 3D-printed ultrasonic whistle is a cheap method to be used as a wolf preventative. As pro...

Thomas Hervé Mboa

We built an open source Incubator for biology lab in Cameroon; since most of them are under-equipped due to the high cost of lab equipment. ...

Dport535

This model uses loose ball bearings which are not as ideal as sealed cartridge bearings when used with PLA.

Kprice

A fork support is inserted in between the fork of a bike to help hold the suspension rigid during transportation the bike.

Pierce Mayville

solar water heater

Anonymous1

This simple device not only saves hours of painstaking labor, but also increases the viability of the nut as a cash crop.

Andre Maia Chagas

The open visual stimulator is a projector system that can take up to six different leds with any chosen wavelength and project images, video...

Charlesz

Minnow traps can be essential for collecting your own bait when none is available to purchase and are relatively inexpensive to purchase.

Tjmarvin

With a portable easy to use unit that uses a limited amount of water to be able to have in a village or house in a place with out access to ...

Michael Weinberg

A raspberry pi-powered display for tracking NYC subway trains

J.M.Pearce

This is a payload attachment for the DJI Phantom 3 quadcopter. Unlike other payload attachments, this does not require the removal of the ca...

Fgaiken

This is a mobilization wedge used by physical therapists to perform manual spinal mobilization techniques and other various exercises. The t...

FrankBeFay

This OSAT is a Micro Lathe. While in Beta, it is nearly parametric in order to scale to the supplies on hand, and can be altered to meet the...

McPippens

This nutcracker is fully made with a 3D printer. Designed for high volume processing of a variety of nuts.

Richard Bowman

The OpenFlexure Microscope is a 3D printable microscope, including a precise mechanical stage to move the sample and focus the optics. The...

Jdkizer

The treadle pump is a lift pump designed to irrigate small plots of land. Treadle pumps are designed to be operated by the farmer or hand in...

Julian Stirling

A mechanical tester which uses a welded frame, a number of 3D-printed parts, an Arduino, and a few other simple components. The tester is fo...

JBailey

The goal of this design is to allow a lubrication and chip clearing module addition to a CNC router. This system consists of an external uni...

Ajrettig

A monochromator is a device which takes light and transmits it to into a narrow band of wavelengths. Using a form of mechanical filtering (d...

J.M.Pearce

An effective method for the diagnosis of severe acute malnutrition is the measurement of the middle upper arm circumference (MUAC).

Ajs83

The purpose of my project is to determine the cost inputs and energy outputs of small scale ethanol production from local and conventional s...

Raidlight / Skis Rossignol SAS

Sac gilet Responsiv Raidlight

MatthewPollack

When money is hard to come by and other tools take priority, a tool that makes a corner at a 90 degree angle is usually not high on the list...

Charlesz

Crawler Harnesses can be cumbersome to keep in your tackle box without a holder and more often than not, if you're walleye fishing, you have...

Swallen

This bike handle is designed to be 3d-printed. It has been tested using standard PLA, but should work with any other standard printing mater...

Svanruiten

a solar panel that produces enough energy to charge a smaller battery or a device

Zodvorak

The idea of this OSAT is a small, easily producible, hand sized, bulb and seed planter. The current opening fits groupings of seeds or a sma...

Marcello

The cider press is an older technology that has been used for ages to make juices from fruit. The cider press enabled people to move from ma...

Richard Bowman

A 3D-printed jig to uniformly illuminate the Raspberry Pi camera module's sensor, for the purpose of calibrating its response to different c...

Ztverran

UNICEF's supply catalogue is used to acquire commodities to respond to the needs of children and their families worldwide.

Nkbuday

This pump is designed to allow someone in an area with hills with a water source far away. The ram pump does have a lot of waste water compa...

WayneHelminen

Small Bike seat and seat post that can be used to replace an original bike seat. I believe this could be beneficial to people that don't hav...

Brhubbar

This OSAT is a digital mass balance with two outputs: Digital output for data logging capabilities, and an LCD display.

Oliver Schlüter

Zink-Luft Brennstoffzelle plus Recycler

Amsharp

Carpenter knife

Karan

This Open Source 3D sample rotator accepts a variety of tube sizes and mixes them horizontally, vertically, or any position in between. Chan...

Emheld

It allows fisherman to spend their time more efficiently, fish for longer periods of time, catch more fish, use fewer hooks, and cut down on...

Stephcald

The objective of this project is to transform the landscape located at the front entrance of the Jefferson Community Center and Charter Scho...

AnrchyAcres

Wheel hoes are fantastic labor savors in larger gardens and organic farming.

Existential-Crisis

Arm injuries are a very common occurrence, especially with children and younger adults that are working in manual labor

Thomas Korejsza

This OSAT design is an economical alternative for a cam cleat. Basic cam cleat designs are utilized for many functions. They are typically u...

Kmmessin

The hand wood planer is designed for making medium to detailed design cuts on wood.

https://www.appropedia.org/User:Michaelpatrick

This is an implementation of using a photoelectric smoke detector to trigger the reset pin on the Beaglebone Black Rev C being used on the M...

James Taylor

Adjustabike is the concept of an open source build your own bike kit. It is made of standard aluminium tubes and custom attachments you can ...

Bwbarker

This Stethoscope only requires some surgical tubing or similar airtight tubing and 3D printed parts.

Cikaub

Heated bed that still allows for the addition of extuder fans and secondary hotends.

Jnbart

Make bike transportation more accessible and to decrease the cost and increase the ability to repair a bike that has a broken axle

TheRealSlimShady

A simple tent stake. Tent stakes are something used all over the world. They could be used to pitch a tent on a camping trip or to secure a ...

Amcmichael

Buckles are very useful and found on a wide variety of items; however, if one breaks, it is hard to find a cheap replacement. Since buckle s...

Ejumlor

The goal of this project is create a safer way to smash and shell acorns

Cleyton

The project has been expanded to convert all designs of the salt spay chamber to open source design.

Zedubiel

The OSAT field dressing tool allows the user to cut only what is needed in a safe manner. So with this tool the user can field dress an anim...

ABStilwell

The need was expressed for a device in which could turn waste newspaper and other light paper products into small burnable briquettes. This ...

HoldenLab

Microscope incubation box for home built single molecule microscope

Sasank Potluri

Engraver mod on the Athena II printer allows you to engrave various designs on acrylic sheets, plexiglass, cardboard and/or wooden surfaces....

Tomsmusts

The idea of combining a spoon with a fork has existed for years now. For certain situations, this innovation can be more efficient (for exam...

Cmgietek

This micro water turbine can be paired with a DC generator for power generation applications. The micro design allows for the turbine to be ...

Toffe

This 2 inch wafer dipper is designed to fit into a 250 ml Schott Duran beaker. Number of wafers that can be fitted are automatically calcula...

Lidsjmdundsr

Goal of this project is a design of a tool for attitude system testing for CubeSat class of satellites. It is based on the airbearing princi...

Irbeaudo

This zero-electricity fridge addresses the issue of people in third world countries not having electricity

JasonBell

This part solves the problem of making very thin cuts on a table saw in a safe way. All current push sticks or push blocks on the market do ...

Ebumba

The pen will keep the canvas that they are using free from excess smudges where the charcoal would have made their hands messy. Having the c...

Trfranck

The corner restraint is a simple design that can be easily changed through it's FreeCAD file and it is designed to be printed without the us...

P.Diakow

Chicken tractors are commonly used all over the world as mobile chicken coops, however they have not been given much engineering attention. ...

Erbenson

This is a device that clips into the heater vents for anyone who owns a car. For an example, this hanger can be used to dry out gloves or si...

Cmvancam

This device is meant to help 3rd world countries who do not have access to small containers. This device could be used to protect from anima...

Lior Patcher

An easy-to-use, highly customizable, and open source syringe pump and microscope system.

JLaureto

This Open Source Appropriate Technology (OSAT) aims to decrease the overall cost of a standard crutch and to enter the specialized market.

Andre Maia Chagas

a voltage amplifier based on LM741, run with 9V batteries and shaped as an Arduino Due shield

Hannah Stoll

This hand powered machine is a food processing tool that will grind peanuts down so they can be made into peanut butter. There aren't many 3...

FrankBeFay

This OSAT is a Micro Lathe. It uses an open source three jaw, self centering chuck, which can be found here. The frame, while in Beta, is ne...

Mayank Moon

People spend hours in the scorching sun to make sure that they water there crop, and mostly done manually. By 3D printing the design mention...

Robertarden

Monochromators are used in optics to isolate certain wavelengths from a light source made up of many wavelengths

Brett Hulbert

This project consists of multiple components that can be assembled into a full scale snow shovel. Some commercial shovels are very expensive...

Agbretz

The trowel is a simple design that can be easily changed through it's FreeCAD file and it is designed to be printed without the use of suppo...

Amherbst

Calipers are a useful tool because they provide a bit more accuracy than a standard ruler.

Kili

Makala hii inahusika na uundaji wa mfumo wa kuchuja maji wa gharama nafuu sana. Uchujaji maji unaweza kufanyika kama kuna njia chache ama ha...

Capiscuas

A contactless smartcard solution using Mifare Classic card.

Pierce Mayville

This is a scrub brush for cleaning what ever it is that needs a little elbow grease. It costs a fraction of commercially available scrub bru...

Bsadashi

Fume extractor is used in laboratories to extract harmful chemical fumes

Tlfedor

The scoop allows the picker to keep a further distance from the bush, putting a barrier between them and any creatures living in the plants....

97.88.41.192

This OSAT is a Spoon Fork and Knife Combo. This is an appropriate utensil that gives the developing world the opportunity to no longer eat w...

Avm7

The final goal of this project was to provide a refuge for homeless senior citizens within the compound of the Parras Desarollo Integral de ...

Apboerma

This is a parametric FreeCAD model that can be adapted to a variety of threaded or unthreaded pharmaceutical pill/medication bottles.

Ickesler

This allows for easier movement across powdered snow, without taking a lot of effort to pull your foot out of knee deep snow with every step...

Drew Portero

We created a large volume open source DIY syringe pump from commonly available and 3D printed parts that allows for high accuracy and repeat...

Zhinek

The project is a part of the bike, offered by Dr. John Gershenson.

Jbloomed

The goal of this project was to improve on a previous design which targeted to make a GPS belt clip, this is specifically targeted at search...

Karan

With a modular setup, this device can be used as multiple tools in one. Main applications could be for people from third world countries whe...

T.Billman

This multi-functional tool is all that would be needed to quickly and effectively clean fish in order to increase the storage life.

Alyssa Knoester

It improves the safety of a bike for people who may not have access to a new bike or chain guard and is attached simply by string or a zip t...

Bgj6

The objective of this project is to reduce the cost of the current Universal Peanut Sheller. The new peanut sheller will be used in West Afr...

Steffan Miliucci

Mosquito bed-netting represents the most inexpensive way of effectively eliminating mosquito bites while sleeping.

Victor Kumbol

We’re building an equipment called an actimeter. At the simplest, the actimeter is used to measure and record the locomotor activity - how f...

Kev Man

Having 3D printed medical diagnostic equipment could give underprivileged areas cheap and easy access to much needed tools, while also letti...

Robertarden

Printed surgical tools in low income countries

Shubhamrjain

This Laser Engraver mod on the Athena II printer will allow you to engrave various designs on cardboard and/or wooden surfaces (acrylic mate...

Tjmahan

The Raspberry Pi is an affordable computing solution, with the Raspberry Pi 3 Model B, power supply, and MicroSD card for OS costing a total...

SammyKeller

A pill holder to hold daily pills for up to 14 days

Nicolas Winkler

This clip can easily be printed and used for a new born baby. Most clips use a latch to keep shut, by realizing that you can slide an umbili...

Jordan Null

People looking to purchase motors similar to the ones in the market

Medley Inc

Winnowing is a process to remove lighter particles of chaff, dirt, etc from grain and other products typically by throwing it into the air a...

Amsteele

The Drop Spindle is an ancient tool used for spinning fibers such as wool, cotton, flax, and hemp into yarn, without the need for a large, e...

Tazmanian60

Toilet seats and hinges are an overlooked item in the modern world. A proper seat and hinge provides support for when nature calls. This ite...

Lmbrueck

This method however requires extra hardware and reduces the size of your build space. Also this method requires careful calibration of nozzl...

Cheyenne Celada

The objective of this project is to provide inexpensive potable water and water for cleaning to the local school in La Yuca, Santo Domingo b...

Wes Gratz

5Hand guards are often used in snowmobiling to protect the hands against wind, snow, and tree branches.

Matthew K. Makarewicz

A potato ricer is used as a way to mash potatoes. It is a preferred methods of mashing potatoes. This tool can allow people to improve their...

Bernd Muschard

The CubeFactory 2 is an autonomous and portable mini factory with own energy and material supply. It embeds three modules: a 3D-printer, a p...

J.M.Pearce

Dental Chair

Prstlouis

The spoke wrench is used to loosen and tighten spokes on bike wheels when trying to true a wheel.

Jhbell

Affordable and strong plastic grinder

Gem30

Electric Mountain Board

Stephen Krease

Beekeeping provides a source of food to the owner as well as a product which they can sell as a means of income.

Lukehalo

The objective is to create a human powered generator that produces energy in an entertaining and innovative way that may be operated by peop...

Forest.andresen

This is the creation of a utensil that can be easily printed by a 3D printer anywhere around the world. Our wish at project spork is to enab...

Oacreame

The purpose of this design is to allow people to grow fruits, vegetables, and herbs close to their home with minimal space and water usage. ...

Behereau

This project is an attempt to create a simple bicycle brake for the open source community. This brake relies on minimal hardware and uses sc...

Blsavone

A 3D printable brace that can be used to treat children born with club foot. The brace is able to be adjusted in several different direction...

Ajvincen

This project is for the Growbot project by the Open Source Hardware Enterprise at Michigan Tech. The Growbot aims to provide an open source ...

C0nrad

This OSAT is a garden hose splitter that can be used to split water streams from a common garden hose nozel. This splitter can be customized...

Alex Kampf

The OSAT is Drip irrigation assembly combining the stake and drip emitter with tubing. The Drip Irrigation Stake fulfills the purpose of pro...

Dofabry

This project was originally intended for the developing world to aid in farming and rapid planting.

Plaxton.s

This work offers a primer to the topic of AWVPs, and a description of how to build a dew collection rig. Unfortunately, dewfall is not curre...

J.M.Pearce

RepRap 3-D printing has already been shown to be a versatile tool for fabricating novel photovoltaic racking designs, however, they can also...

Hsugreen

This project is for greywater usage and may not meet clean drinking water standards. (not potable water)

Lssouthe

A Wind turbine bade

Nakolean

Designed in response to a request for Medical Tweezers from Field Ready. This is a versatile design for Medical Tweezers as it's designed in...

Tmjohnst

This project was intended to remove soldering fumes from the air.

Maxime Zimmermann

Designed for ease of use, robustness and low-cost, the “Openspritzer” is an open hardware “Picospritzer” as routinely used in biological lab...

Tajubenv

This design seeks to address the high cost and many variations of complex surgical retractors used today. This design is intended to serve a...

LoganBrunette

This segmented design is able to account for the variations in stud width (Metal Stud = 1.375 in., Wood 2x4 = 1.5 in.) and stud-center to st...

Cjthormodson

This fulfills the need for a comfortable cheap alternative for current bike grips on the market. Below is a picture of the bike grips attach...

Jwkubist

This technique thus limits than range and amount of people able to use those makers. Other makers can attach to a wall and be pulled down li...

ASTrifaley

An electric hand-whisk is a handheld mechanism used for whisking, beating or stirring different liquids. It generates this whisking or mixin...

Nate.evink

Accessing clean water is still a struggle for many people throughout the world. In areas devastated by natural disasters, it can take years ...

Cascheel

With this tool and a skilled user, many fires could be started much quicker and the user would have no blisters. The scad file can be custom...

Bsadashi

Dried nuts such as walnut are grown in countries like Brazil and India Predominantly. The farmers are usually small land owners with little ...

Hdpowers

Pruning hooks are usually used to cut branches down from trees, but in Ghana pruning hooks are used to cut down cocoa pods from tall trees. ...

Jclafont

This design could fall under the 3rd "OSAT Sustainable Development Goal" for good health and well being. Strictly speaking, stethoscopes are...

Kjkurtz

This design can fit any 2L bottle and can be scales down to fit other size bottles. This takes an old 2L pop bottle and turns it into a seed...

Nam78

The objective is to design a power meter which displays two types of data: the status of the battery and the power generated by volunteers f...

Kkoparka

This OSAT project was a request and I was unable to find any attempts of a rotary edger in the current database. This model requires additio...

Andre Maia Chagas

"Flypi" is a 3D printable all in one biology lab that can be used for state of the art experiments in neurosciences as well as for human int...

Srschroc

This ankle brace is designed to be stronger and more versatile than other OS ankle braces available online. Most notably, this brace does no...

Thebcm27

Feed bees with our very own sugar water bee feeder

Cjkmiec

This hammer is an appropriate OSAT because a hammer is one of the most basic and necessary tools to build a structure. A hammer like this wo...

Bloody Scoundrel

This design is potentially very useful in developing countries because water bottle waste is something that is plentiful throughout the worl...

Brhutchi

With this design I always see screw drivers being made, however I wanted a simple design of a screw driver but also allowing me to store bit...

Szimmerling

Absorbent properties of banana fibres. It is necessary to develop an inexpensive and sustainable product to allow these girls and women to h...

Sjwentwo

Leaf Protein Concentrate (LPC) is a protein rich substance similar to a curd or cottage cheese. LPC can be made from many varieties of leafs...

Ejumlor

This project will help hold a wire that has an inductor on the end to sense a frequency induced wire that is burried under ground. It will b...

Mayank Moon

Flowmeters are the devices that are used to measure the flow of liquid & gases that pass through them.

155.106.128.123

The pedal is intended as usable substitute for a factory bike pedal, though not totally equivalent.

Lmbrueck

In much of the developing world it is very common to collect water in a bucket this water is then used for around the house needs. Having th...

Jakerob

This Stake has been designed to serve as a semi-permanent connection between earth and man made shelter. current stakes work well but do not...

Jcmayros

These wrenches are easy to carry, relatively durable, and much cheaper than conventional options. They can be made with locally available ma...

Tdernest

Snowmobile Choke

Rgjones

This page lays out the steps required to convert your current Delta Athena II printer to reduce the rattling of the connecting rods during p...

Jjwyrzyk

This device cheaply allows women to track their cycle easily, and can also be used when a couple is having trouble having kids. Women having...

J.M.Pearce

Simple 3-D printable open source hardware designs have proven to be effective scientific instruments at low costs. Further development in th...

Rsimpson

Densiometers are simple tools used by foresters all over the world to roughly estimate the amount of foliage coverage in a certain area of t...

Rdreyes

This is a 3D printed finger splint used for immobilizing fingers to facilitate healing. Within the medical field, studies have been found th...

Eibauer

Talbot water taps are used extensively throughout the low income countries of the world. This type of tap is extremely useful for them, but ...

Jwn69

Provide Laurel Tree Charter School with an energy monitoring system that shows energy consumption in a way that was both interesting and und...

Dmswanso

The fishing pole rod holder is OSAT as it allows a person that is fishing to set their fishing pole in the holder that sticks into the groun...

Abhijeet

Rainwater harvesting is one of the efficient ways of utilizing rain water for household purposes. Many of the underdeveloped and developing ...

Jayantchalke

This OpenSource Appropriate Technology used in Manufacturing Umbilical Cord Clamp is one such step in providing a relatively cheap and quick...

Karan

With a modular setup, this device can be used as multiple tools in one. Main applications could be for people from third world countries whe...

Jchamilt

This toilet paper holder is an appropriate technology because it allows people in developing countries to store and use their toilet paper c...

Ncurtis

The hori hori has uses in gardening such as weeding, cutting roots, transplanting, removing plants, sod cutting, and splitting perennials.

Njlante

This OSAT creates makes biking safer by providing a cheap, easy, adjustable way to mount a mirror to the handlebars of a bicycle.

Turban11

This is an Ergonomic Ice Scraper. This is a very cheap alternative to buying expensive ice scrapers. It fits in your hand nicely and also wo...

Pgilly20

These technologies must be "appropriate technology" (AT) - meaning technology that is designed with special consideration to the environment...

Fgaiken

This product is complete and it functions as a negative probe holder.

Mlfraser

This design can be printed to produce a bicycle chain to be used with a bike

BradleyLarson

Printing a shovel handle is an easy way to ensure you are getting what you need and my design will make sure it is also comfortable in your ...

Kemyszka

These shredders allow the use of the cut PET to be used in things like crafts and possibly for printing purposes.

DomT

The goal is to construct a piezoelectric energy harvesting device that can generate enough energy to create a noticeable charge in a battery...

Sjhelmin

A lack of adequate footwear is more than a simple inconvenience or lack of comfort. Millions are infected or dying each year due to the spre...

Jordan Null

Kidney Trays are used to hold surgical tools and keep them from being contaminated.

Jme241

The Chicken Coop project's objective was to house and protect poulty that may be owned by the school.

David Eychaner

Low profile bracket that had a small shelf to manage the power supply, 4 through holes for attaching it to the ceiling, as well as a counter...

Shyam

This garden water sprinkler can be easily used to sprinkle water on a certain given region of garden by inserting a jet stream of water.

Zsarnold

This OSAT project was created to assist the senior capstone project for the Open Source Hardware Enterprise, OSHE Growbot. The parts designe...

Dwsweene

These lights can be needlessly expensive, so I designed a customizable mount that can be used with any standard flashlight. This, paired wit...

Jawerthm

For the purpose of being an open source appropriate technology, I have identified a few areas the concept of a 3D printable hammer can be im...

Drhannah

Its purpose is to be able to scrape ice off of objects that have the ability to accumulate ice. In order to increase usability, the scraper ...

Aakruzel

A bike seat is a simple, but necessary part of a bike that holds most of the weight of the biker. In many developing countries, biking is th...

KirillKudaev

A customizable Bike Handlebar Plug designed using OpenSCAD.

Dcolvin

The purpose of project CCATBox was to design a composting toilet system to be used at CCAT in order to save water and recycle the nutrients ...

75.111.41.73

The objective of this project is to build a compost system for the WCIA that will handle their green waste materials, as well as provide a n...

B. Dawney

The presented treatment unit serves as a means to reduce turbidity in water to be subsequently treated with solar water disinfection (SODIS)...

Jdmajors

This is a helpful OSAT project because it will help anyone in the developing world keep any toilet paper off the ground where it could poten...

Sklunsfo

This set reduces the cost of such tools not only by using cheap material, but also because it is only necessary to have one handle as the di...

Rivu

The objective of the project is to 3D print as many parts possible of this bicycle which is very commonly used in the third world countries ...

Nbalavich

Pea picking is a common practice across the United States and around the world. People grab their family's and head out to the field to coll...

ChristopherS

Food dehydration is both a desirable and appropriate technology for many reasons which include increasing the shelf-life of food without hav...

Vrontu

Electroplating on limited area on a sample requires means to prevent electrolyte contact or insulating material in the areas that are not be...

Gcs118

The human powered blender is a device intended to be used by students in grades K-12 at Laurel Tree Charter School in Arcata, California. Th...

Mnveldt

A simple Roberval measuring scale design that can be adjusted to support different weight multiples. By design, the exact positioning of the...

Atw22

The objective of the Current Specialists was to design, build and implement a learning apparatus to teach the difference between series and ...

Anonymous1

The house already operating with a grey water system will be able to conserve water by controlling how much water is used and where it drain...

Jgwamuri

Appropriate chicken feed holders can help keep feed isolated from being contaminated by feces and hence makes minimizes the outbreak of dise...

Djtauche

This cover is for a NEMA 6-50 plug.

Klbarie

This project aimed to give the Athena Delta printer a sleek looking heated bed that took advantage of the printer's shape.

Cpwallen

Modified cap for turning two-liter bottle into sharps disposal container

Zmchenie

This device qualifies as an OSAT Project because it was a request made by someone who needed snowmobile parts. This device is a fraction of ...

ScottH

The Full Belly Project is an organization which creates low cost, simple technological solutions to be implemented in developing countries. ...

AustinHowland

The snowmobile pull starter handle is appropriate for OSAT due to some peoples ability to access various snowmobile parts around the world. ...

Typ0

To allow people in poverty to have decent eyesight, thus able to read, learn, travel and work better.

Francesca

The generator requires a laminated steel core to which strong magnets are attached. Cutting out laminates for the generator core by hand tak...

Mwcurtis

The reason this design challenge was created was to replace a poorly designed connector for an air hose on a nebuliser. The current fitting ...

ASTrifaley

This is a Bamboo Joint model that can be used in building bamboo houses, rooms or any sort of suspended pavilions.

Nick D.

This Effector for a column delta printer, like the MOST delta RepRap allows different hotend nozzle sizes to be used

CalMcCarty

These jigs are used to make holes to join together pieces of wood in products such as tables, clocks, nightstands, or any fine finished wood...

Richard Bowman

This project is a 3D printable design that enables very fine (sub-micron) mechanical positioning of a small moving stage, with surprisingly ...

J.M.Pearce

This two piece device allows you to get a firm hold on any type of textile without puncturing them. The first part of the device, which we w...

Swflynn

The goal of the system is to be easy to use, effective, low cost, and fully editable. If needed, the entire system can be customized for an ...

Megandersen

water bottle cap modified to turn any water bottle into a sippy cup

Noora Nevala

Here, we designed and implemented a fully open source and low-cost hyperspectral scanner based on a commercial spectrometer coupled to custo...

Chrissy Kaub

In many developing nations, there is a constant demand for medical supplies, which are not only sometimes small in quantity but are often ha...

Kmwendt

This OSAT allows for children's heights to be accurately measured in any environment. Traditional stadiometers are expensive, costing around...

Reiners

This is a solar charger or an emergency light. It runs on a 6660 mAh battery.

Sswade

This berry picker is designed to fit onto gallon-sized milk jugs. The milk jug is used as the receptacle for the berries and as the handle.

Hjhunt

This is a much safer way to light dark areas then a gas lamp, which can start fires and releases harmful gasses.

Remichae

This design was created in response to a design request submitted by Field Ready, a non-profit 501c3, that seeks to make field ready humanit...

Yanguo

Bicycle part

Patrick Gilland

Hemostats are a medical alternative to clamps. They are especially useful when the user only has one hand available or access to something f...

Cleyton

This shovel was designed to be a tool that can be fully modulated for the users current needs and environment. Shovels are used everywhere a...

Tacopaul11

The openscad project is set to print a 1 cup measuring cup, but can be easily scaled to any practical size for cooking.

Mitchell DeNooyer

This bike pedal is a good prototype for what the possibilities are for this project. This pedal is fully 3D printed and clips together aroun...

Nick

This project is designed to give a basic understanding to anyone who may be interested in the mechanics involved in converting the energy of...

Yanibeeker

The 3-D Printed Hand Pump is an OSAT that allows liquid to be pumped from a reservoir to a container. Hand pumps are needed in across the gl...

fakufaku

An open-source incubator for fun and profit.

Print Design

This project is designed so that it could be used for tracking the sun light and convert it to electrical power using the solar panel. I hav...

Alwoern

High Temperature 3D Printer

Mjmcdonald

The task is to adapt a widely available thermostatic valve for use in the solar water pasteurizer.

Afcowsky

Brake Calipers are an important component required to build a bicycle.

Wrmulder

The goal is to provide any number of farmers, herders, or others access to custom, new horseshoes.

Zhc2

The objective of this project is to assist CCAT by improving their greywater treatment system

Mmandres

This is an appropriate tool because it assists in making a better garden that will produce more crops.

Lmbrueck

AS heated print bed also has the advantage of being able to use a surface like PEI (polyetherimide) to print onto.

Bmr81

The objective for this project is to build a small local pharmacy (Botica Popular) for the people of Las Malvinas, which will provide basic ...

Admitche

This is a baseplate for a poultry feeder and waterer, which a gallon jug would be used as the hopper. This solution provides safe, short-ter...

Brhubbar

This page contains the instructions and files necessary to 3D-print a loudspeaker.

Anonymous1

The Honey Cow is designed to mimic nature as much as possible.

Adhought

This device is supposed to replace the mortar & pestle by making it easier and less labor-intensive to grind corn into flour.

Ampringl

This OSAT project is meant to provide utility in sifting for a variety of applications.

La changa

The DIF wanted to construct a space for the viejitos of Parras who do not have families to be able to relax and enjoy a meal and the company...

Salils.1807

Powder maker - Chillies and Herbs

Aliaksei Petsiuk

The Blind Person's Assistant is based on ultrasound measurements. The sensor in bracelet measures distance in front of it in the range up to...

Houcke

Goniometers are simple devices used to measure the angular range of motion of human limbs. It is common for doctors to monitor the muscular ...

Devon Smith

This is useful for any kind of precise measurement of thickness, depth, width, and can even be used to ensure a machining device or tool is ...

Finchers

This ground collector is based on the nut, golf ball, tennis ball, or fruit collectors that are on the market. Simply put, a rolling cage is...

Lloxner

This 3D printable prosthetic foot design was built to help reach out to those in need of a foot. Prosthetics have been around for a long tim...

Btswanso

This tool removes all guess work out of determining canopy cover, which is a very useful metric for foresters and construction companies loo...

Njmcgra

AutoInjectors are a spring-loaded device that aides in delivering the proper dosages of certain medicines. The have built-in adjusters to en...

Salils.1807

Manual Centrifuge Apparatus is a scientific equipment which is widely used in chemical and clinical labs all around the world. This apparatu...

Bllafata

Snaffles, or more commonly referred to bits, are the metal pieces that riders use to give commands to their mount. For this particular page,...

74.194.95.244

The “Flock Pods” are intended to be renewable homesteads. Most food and energy needs will be generated through the “Flock Pods” internal sys...

Mvalessi

Used to evenly water plants from a central location using a timer and a water pump.

Bpeticolas

This OSAT project is appropriate for countries where bikes are heavily relied on and cheap spare parts are helpful and necessary. In many co...

Sarah Morton

The objective of the main unit is to provide enough dehydrated food to significantly contribute to the sustenance of the two individuals who...

Anonymous1

The design of most biogas systems can be traced to either the China Fixed Dome (CFD) 6+ million in-use or the India Floating Cover (IFC) 2.9...

Ejhunt

This is a cross-flow turbine[1], essentially a water wheel turned by naturally flowing water to produce energy. Unlike a dam, or a mill whee...