Walkabot - Gravity Powered Ramp Walking Robot

by Karl_Williams, published

Walkabot - Gravity Powered Ramp Walking Robot by Karl_Williams Nov 11, 2013


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6146Views 2064Downloads Found in Mechanical Toys


Walkabot is a gravity powered ramp walking robot. Place him on a shallow ramp, tilt him to one side, let go and he will walk down the slope. The robot makes a "walka-walka" sound as he walks.
See the video of him walking here: http://youtu.be/vgM6PPkw6cQ
Use a piece of straightened 1.75mm filament as the axle or print out the axle if your printer can handle the small diameter. Assemble the robot by positioning the legs inside the body and pushing the axle through the body and legs as shown in the assembly diagram. The legs should swing freely inside the body. Attach the arms to the outside of the body on the axle. The arms can be moved up and down to adjust the balance slightly. Walkabot was created with Solidworks and is also based on the plans by Roberto Lou Ma that can be found here:

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Was thinking, an even better way to redesign the legs would be to remove the washers entirely, punch a larger hole in them and fit a piece of PTFE tubing in them to serve as a low friction bearing surface. Convenient if you have a bowden setup on your printer and some extra PTFE tubing lying around.

Hey Spencer, I could redesign the legs to lie flat on the bed by removing the spacer on the flat side of the let and making it a separate part. I'll do that when I get some time.

This is an awesome design! I was wondering if it was perhaps possible if you could post the sldprt files too?

Cool bot. Any reason the legs couldn't be redesigned to sit flat on the bed, so they could be printed without support?