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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.

Enjoy!


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.

Hardware:

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



Step 1: Cut the Axle to Length

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.

<p>Great tut!<br>I'm pretty sure one can increase the DIY rate of this project if also 3D print the gearbox parts (+ some generic metal hardware). This will also reduce the cost as you can take nearly any DC motor (broken/abandoned toys are good donors).<br>I'll definitely try this with my kids.</p><p>Good luck!</p>
<p>Thank you for doing my work!</p>
<p>Legs I print in three parts for easer printing and screwed with 2 screws. I've used cheaper TT motor, so it is 8mm narrower than the original. </p>
<p>Looks good. Printing the legs in pieces allows you to orient the parts for max strength. I have a few of those TT motors in other projects. They work great.</p>
<p>Nice legs design!</p>
<p>beautiful, simple and effective job</p><p>thank you:)</p>
<p>You're welcome. Glad you like it.</p>
<p>It looks sooo cute! Awesome project!</p>
<p>I want to see an army of these, marching through Pier 9...</p>
<p>Oh my gosh, it's so cute! It reminds me of those walking teeth toys!</p>

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