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From OHO - search engine for sustainable open hardware projects
Quick hitch triangle
The quick hitch triangle replaces the traditional three point linkage system. With the quick hitch triangle, you can hitch a tool onto a tractor in a matter of...
Contains PDF Blueprints: Yes
Contains CAD Files: No
License: CCBYNCSA40
Radial Drill made from Auto Parts
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Raised Hutch of 3.5 m2
Rabbit hutch with a good level of security, protecting the rabbits from predators.
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Rice Threshing Machine - Pedal Driven
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Rope Pump with Depth Adjustable
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Safe and Sturdy Shelter
Rabbit hutch with a good level of security, protecting the rabbits from predators.
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Sand Blasting Machine Made of 6 Inch Pipe
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Savonius Rotor of 1m Diameter
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Savonius Rotor with Two Blade Levels
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Sawdust Stove Made with a 20 L Tin Can
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Scale Made with a Flat Spring
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Scooter with Fat-tire with 6 hp Engine
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Screen printing press
This tool will allow you to make one-colour prints on many different substrates. It comes with a printing board specially designed to hold t-shirts, but it can...
Contains PDF Blueprints: Yes
Contains CAD Files: No
License: CCBYNCSA40
Seed Cleaner - for Repeated Seed Sorting
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Single Pan Balance
Single pan balance, made of affordable materials, practical for laboratory students and general purpose uses.
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Small water turbine
This project shows the construction plans for a small 5 kW water turbine based on the research of Dr. Mohammad Durali at MIT. According to the original developm...
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: COHL12
Snow Sled with 10 hp Outboard Motor
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Solar Cooker - diameter 1.4m
Based on: https://www.youtube.com/watch?v=joJRrljm30g--
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Solar Food Dryer for Vegetables
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Solar Water Heater - Capacity 100L
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Solar Water Heater with Corrugated Metal Collector
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Solar Water Heater with Serpentine Collector
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Stand for Inspection Microscope
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Star shaped finger weeder
Consisting of semi-flexible star-shaped fingers which rotate around the plants and are usually mounted on legs which follow the micro-topography of the soil, st...
Contains PDF Blueprints: Yes
Contains CAD Files: No
License: CCBYNCSA40
Stationary Solar Fish Drier
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYNCSA40
Stationary Solar Fish Drier 37 m2
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYNCSA40
Steel Wire Rim Wheel for Donkey Carts
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Table for Wood Router with Storage Spaces
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
The Kebkabiyah Plough
Light plow for arid soils pulled by donkey or camel, based on traditional models, but with an all-metal structure made from scrap metal.
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Thickness Sander with 476 mm Width
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Tilter
This linkage piece is fitted onto the quick hitch triangle to allow tractor mounted cultivation implements to work up to the end of a bed, when the tractor has...
Contains PDF Blueprints: Yes
Contains CAD Files: No
License: CCBYNCSA40
Tractor tool bar
With this versatile and easy to use tool-bar, you can acquire a range of essential tools at a low cost. Many tools can be fitted on, from comb weeders, vegetabl...
Contains PDF Blueprints: Yes
Contains CAD Files: No
License: CCBYNCSA40
Trailer for bicycle based on Carla Cargo design
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Tray Dryer Semicontinuous - for Vegetables
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40
Tube Manometer
Uses in practical experiments and demonstrations 1. To demonstrate that the pressure of a liquid is equal in all directions. 2. To determine the specific gravit...
Contains PDF Blueprints: Yes
Contains CAD Files: Yes
License: CCBYSA40