Thingiverse
Deca - a walkerbot by Roxanna77
by Thingiverse
Last crawled date: 3 years ago
Inspired by Theo Jansen's Strandbeests. After making the Glowstrand (http://www.coolkidsrobots.com/robot/glowstrand), I decided that I wanted to design something that was all mine... and with a big change, Mid Outboard Motors, using some cheaper more available gear motors. I got the motors from IC Station, but they are available in many stores. They must have the dual output shafts for this design. Deca is very fast, its going to need some excellent sensors and processing, I'm using a Parallax Propeller Quickstart board and a L9110S DC/Stepper Motor Driver Board for motor control. It also has eight 4 x 10 x 4mm ball bearings for the big gears. I used short pieces of filament for pins on all the leg joints, carefully melted over the ends to make them stay put. The frames are held together with four 125mm long pieces of m4 threaded rod, and a bunch of nuts and the 8mm and 11mm spacers. I used nylon nuts mostly. For the big gears, I used two 53mm long pieces of m4 threaded rod as axles, with m4 locking nuts. For the crank pins I used m4 nylon screws. You will need to drill and tap the holes in the gears. You will also need to clean up all the 4mm and 1.8mm holes in each part.
You can see more here http://www.coolkidsrobots.com/robot/deca-son-glowstrand
12/10/15, updated the head with better path for wiring and sunk servo horn screw heads.
12/12/15 Added spacers for running motor power through the threaded rods and making a cleaner look (Connector_11x4mmSpacer.stl). You will need to find some set screws and drill and tap as appropriate. Then tin the ends of the wires before inserting and clamping them.
12/13/15 Added a mount for boards
12/20/15 I made a servo head for a RadioShack Ultrasonic Range Sensor and a Sharp IR GP2Y0A21YK0F Analog Distance Sensor. Recessed mounting holes for 9g servo horn, also has nice wire path. Also posted here:http://www.thingiverse.com/thing:1213658
You can see more here http://www.coolkidsrobots.com/robot/deca-son-glowstrand
12/10/15, updated the head with better path for wiring and sunk servo horn screw heads.
12/12/15 Added spacers for running motor power through the threaded rods and making a cleaner look (Connector_11x4mmSpacer.stl). You will need to find some set screws and drill and tap as appropriate. Then tin the ends of the wires before inserting and clamping them.
12/13/15 Added a mount for boards
12/20/15 I made a servo head for a RadioShack Ultrasonic Range Sensor and a Sharp IR GP2Y0A21YK0F Analog Distance Sensor. Recessed mounting holes for 9g servo horn, also has nice wire path. Also posted here:http://www.thingiverse.com/thing:1213658
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