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HEXRO - 12-servo-motors hexapod robot

by Naus, published

HEXRO - 12-servo-motors hexapod robot by Naus Sep 18, 2015
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8991Views 1034Downloads Found in Robotics
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HEXRO is a small Hexapod robot designed to work with any microcontroller and servo motor controller.


  • print with 100% infil at 0.2 mm resolution
  • use 12 of 9g servo motor (towerpro sg90)
  • need a M3 nylon bolts for joints.(can use metal bolts but heavy)
  • need to cut the bolts

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8991Views 1034Downloads Found in Robotics
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I'm planning to build 5 of this with some friends in our fablab.
We are planning to make the frame with carbon fiber.
Can you post a dxf or svg files for the 2 components? It will be easier for us to use it instead of creating a new one from scratch

hello - is 100% infill a must ? My 3D printer person is saying 40 % infill is ok. Can someone comment on this pls?

40% is rather too weak. You can try 70-80% (of course this'd be weaker than 100%).

Silvood - in reply to mogor

Gtting over 50% infill is totally useless. My university try many tests, and the useful limit is 45%

I second the request for sketches. Specifically, a BOM for the electronics (Arduino, shields, etc.) and of course configuration instructions. Would be nice to run this off an app controllable over BT.

I like the edgy design.

Oct 27, 2015 - Modified Oct 27, 2015

what screws did you use to connect the horn to the parts?


a modification of different way to hold the horn http://www.thingiverse.com/thing:1241518, no screw needed.

Hexro alternative leg design

Cool. I did something similar, I have a slot that the front of the horn slips into. Still designing and printing. Biggest hurdle is a power supply small enough to be onboard and provide enough power. I also have an arduino nano and expansion board designed, with a pan head holing a sonar module.

I was going to post a pic, but I can't do that in the comments section.

Very nice design!

Sep 20, 2015 - Modified Sep 20, 2015

Thank you. I hope you would enjoy making my things. If you discover any mistakes or have any suggestions please let me know. Also, in nearly future I plan to upload the sketches too.

epsium - in reply to Naus

Any word on sketches?

I love the vertical knee movement design, but is going to require some custom coding.

I used 100% infill semiflex for the feet and tendons.

Very cool. Any chance you'll upload the sketches needed to run this?