OPEN HARDWARE OBSERVATORY Free Blueprints for Sustainable Open Hardware	Category search Professional search

OHO Open Hardware Observatory

www.oho.wiki (OHO) is a web platform that supports, improves and makes known Sustainable Open Hardware Projects. Open Hardware are machines or other products whose blueprints can be freely used and improved. OHO was founded with the support of the Technical University of Berlin. OHO consists of the CAD Center, Certification Center and Search Engine. OHO cooperates closely with Wikipedia and other free knowledge organizations. more

OHO CAD Center

More than 95% of all Do it Yourself or Open Hardware projects are incomplete or not documented at all.
So they cannot be rebuilt by other people o companies (or only with great difficulty).

OHO has developed a simple and practical standard for the technical documentation of Open Hardware projects.
OHO selects particularly good projects and creates the necessary CAD files, drawings, parts lists, etc.
All created documents are published under the license CC-BY-Sa 4.0.
This means that everyone can use them, modify and develop them and also use them commercially.
The OHO CAD Center with its qualified engineers is available for all Open Hardware developers.

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   Wind Mill Pump
   Plans and 3d models to build a DIY equipment to pump water using a Savonius turbine and a diaphragm pump. Original design by Brace Research Institute, published...

Brace Research Institute

 
   Cutting shears
   Detailed drawings for building a Metal cutting shears Project published under CC-BY-SA 4.0 license reverse engineering

ApT

 
   Zigzag Solar water heater

WOT

 
   Small water turbine

Practical Action

 
   Tricycle cargo bike

Werkstatt Lastenrad

 
   Long Andre cargo bike

Werkstatt Lastenrad

 
   DIY Solar Water Heater
   High efficiency, DIY solar water heater panel with basic tools and materials. Include fabrication blueprints and 3d models This project is published under the t...

OpenSourceLowTech

 
   Oskar Zither

 
   Wood Turning Lathe
   Drawings and 3d models to build a woodworking lathe with 1500 mm bed Project published under CC-BY-SA 4.0 license

Practical Action

 
   Wheel Barrow
   Engineering drawings detailing how to make a wheelbarrow Consisting of a tray bolted to two handles and two legs, ideal for small/medium loads for the household...

Practical Action

 
   Carla Cargo Crowd

Werkstatt Lastenrad

 
   Pipe Bending Machine
   Detailed drawings for building a tube bender Project published under CC-BY-SA 4.0 license

ApT

... further results

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Download free PDF-blueprints and parts lists

OHO Certification Center

Until recently, there were no technical standards for Open Hardware.
In 2020, we developed the world's first standard for Open Hardware together with the German Institute for Standardization (DIN) and other organizations.

This standard uses a community-based peer review process that is often used for scientific publications.
OHO is the first platform on which this procedure is applied.
The aim of the Certification Center is to guarantee that projects published on OHO meet international quality criteria.

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OHO Search Engine

Many good Open Hardware Projects are unknown and difficult to find in the web.
The multilingual OHO Search Engine aims to show as many projects as possible on a common platform.

The Search Engine crawls the whole web and selects relevant search results according to different algorithms and categorizes them.
The Search Engine has a keyword search, a professional search and a category search.

more

Category search Professional search About OHO Search Engine

Cooperation Partners

Appropedia Is the site for collaborative solutions in sustainability, poverty reduction and international development	e.on Stiftung Die E.ON Stiftung ist die Unternehmensstiftung der E.ON SE. Sie führt die Aufgaben der ehemaligen innogy Stiftung für Energie und Gesellschaft fort	FARMHACK Worldwide Community for Open Source Farm Innovation	Hans Sauer Stiftung Charitable foundation which is both supportive and foundation operationally active
L´atelier paysan We are a French-speaking collective of small-scale farmers, employees and agricultural development organisations	MEKANIKA Innovative open source tools and machines and free learning ressources	Open Source Ecology Deutschland e.V. Gemeinütziger Verein, der Open Source Hardware Projekte realisiert und unterstützt	Open Source Hardware Association A non-profit organization that advocates for open-source hardware
Practical Action (previously ITDG) Practical Action is an innovative international development organisation	Precious Plastic We design and develop machines to recycle plastic and we tell the world how to replicate them	TU Berlin Technical University Berlin TU Berlin	Werkstatt Lastenrad Ist ein Projekt von anstiftung gemeinnützige Stiftung bürgerlichen Rechts
Wikifactory Social platform for collaborative product development	Wikimedia Deutschland Society for the Promotion of Free Knowledge	Working Group on Development Techniques Student association at University of Twente, engaged in technical development cooperation