This 3D Printed Walking Robot is just the thing to keep watch over your desktop. I tried to keep it as simple as possible with a minimum of parts. If you have any questions on the build, just ask.
What you'll need:
1Tamiya 3-Speed Crank Axle Gearbox Pololu Robotics and Electronics. You also may be able to find these in toy stores and hobby shops.
1 Rocker Switch: 3-Pin, SPDT Pololu Robotics and Electronics.
1 2-AA Battery Holder Pololu Robotics and Electronics.
2 4-40 X 1/2 inch screws
2 4-40 Nylon locking nuts
4 #4 flat washers
A hobby shop might be the best place to find the smaller size screws and nuts although they could be more expensive.
2 10-24 x 1 inch machine screws Home Depot
2 10-24 hex nuts Home Depot
2 10-24 locking nuts Home Depot
4 #10 flat washers Home Depot
If your area has a better resource for hardware, go for it. Sometimes the large home stores charge ridiculous prices for small quantities. I list Home Depot because I know they usually stock these.
Double sided tape , Super Glue, hot glue gun or whatever to attach the battery holder to the platform.
3D Printed Parts:
This file contains all the printed parts you'll need. It consists of the platform and both legs. As laid out it will fit on a 120 mm x 140 mm printer bed. I printed in ABS using a .35 mm nozzle and a layer height of .2540. My infill is set to .4. The switch mount has a pretty healthy bridge, so I printed using supports.
The thin feet are fragile due to their orientation. They hold up fine for walking but try not to stress them too much.
For more info on 3D Printing, visit my site at www.teachme3dprinting.com
Find the long hex shaft in the hardware bag. You'll want to cut this shaft at 2 and 1/16 inches. I used a Dremel with an abrasive cut off wheel. A hack saw would work also. USEEYE PROTECTION ! File off any sharp edges or burrs.