Open Hardware Observatory

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OHO is a search engine for sustainable open hardware, open design and maker projects.
We crawl the web and make its content searchable for you.
Start searching and build a better tomorrow.

“Please use the singular form as search term”

On this page you can visit our OHO Project Directory, the world's most comprehensive list of rated mecha(tro-)nical open hardware projects,
or use our OHO Project Search for DIY, open hardware and eco-friendly technologies by using the search field above.

 
   Bandsaw plans - Woodgears

 
   Build your own solar concentrator at home with GoSol's free do it yourself ...

 
   Design of a small water turbine for farms and small communities

 
   Do it yourself Cargo Bike Plans - BikeHacks

 
   Do it yourself agriculture drone 2
   Radiolink Fixhawk, Radiolink AT9S Sunnysky X5212 280kv , 22*7 CF prop 6s 8000*2.

 
   Do it yourself bike trailer
   I made this bicycle trailer out of scrap 1" square steel tube for the trailer body frame and bike hitch and 1 1/2" round steel tube for ...

 
   Do it yourself solar collector - Homemade solar water heater for drainback system
   Film shows how solar collector was made DIY. Old windows were used to make the collector. The collector structure was ...

 
   Home made cultivator
   A cultivator fabricated from scratch. make it up as ya go style didnt get my new camera till it was ready for paint and assembly ...

 
   Homemade Band Sawmill First Version
   This is my first sawmill. I have made an improved and simplified replacement sawmill. Search "TexasBen5" to see my other video ...

 
   Homemade Spot Welding Machine with Power Control . How to Make a Spot Welder.
   Step by step tutorial how to make a Spot Welder.Handfree modePower controlUse old microwave and vacuum cleanerElectric ...

 
   Homemade drinking water filter system
   How I made my drinking water filter system.

 
   Homemade tractor 4x4 History of the building
   Engine: 300 cc diesel engine, 6 hp. Transmission: 5 speeds forward and one back, four-wheel drive, locking rear differential.

 
   How to build wind power turbine generator -do it yourself plans
   How to build home made wind power turbine generator -do it yourself home made wind power,homemade wind power turbine generator.

 
   Mother Baby Granules Extruder Plan
   Per Hour 100 to 150 Kg.

 
   Møgspreder, homemade manure spreader, Tipping trailer
   Jeg har lavet denne video med YouTubes videoredigeringsværktøj (http://www.youtube.com/editor)

 
   Photovoltaic island system self-build instructions - residential design
   Solar plant itself build here you will find our complete building instructions if one for garden and solar island plant itself build photos the really exciting...

 
   Pico-hydro Turgo Turbine - Rwanda do it yourself - Appropedia: The ...

 
   Savonius rotor self-made
   What do others do better than us? https://plus.google.com/collection/gnPHU among the fans of the Frankfurt Garden ...

 
   Sheet Metal Bead Roller Plans do it yourself Bending Roll Roller Etsy

 
   TODOPRODUCTIVITY: How to build a biogas plant ...
   Current biomethanization processes, which use materials such as cattle manure, human feces, distillery effluents, etc .; They are highly inefficient because the...

‒ Agriculture, forest

+ Animal husbandry

+ Crop production

+ Forestry equipment

‒ Business, industry

+ Ceramics

+ Other