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Parametric Lego Mindstorms Small Mecanum Wheel 56 mm

by projunk, published

Parametric Lego Mindstorms Small Mecanum Wheel 56 mm by projunk Aug 21, 2016
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Summary

Parametric Lego Mindstorms Small Mecanum Wheel 56 mm.

The Mecanum Wheel can be printed without any support structures.

Needed Parts for building a single wheel:

7x MecanumWheelMini_Roller  
1x MecanumWheelMini_Left (or MecanumWheelMini_Right)  
7x Axle 28 mm (nail length 40 mm, diameter 2.0 mm)

The roller's profile has been generated based on following model:
http://www.chiefdelphi.com/media/papers/download/2749

Remarks:

  • To build a four wheel robot one needs 2 left wheels and 2 right wheels.
  • Recommended materials: PLA for wheels, Ninjaflex for rollers

Instructions:

  • The top/bottom holes have been drilled to a diameter of 4.8 mm
  • The nails have been cut to a length of 28 mm

The Mecanum wheels in action:
https://www.youtube.com/watch?v=INFiwoVwkZ0

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As if you can read my mind ;) I am currently working on my little bot and it needs much smaller wheels. Let's see how I can integrate these.

Always nice to hear that you are going to print one of my designs; don't forget to upload some photo's of your finished robot!

I was in need for some smaller Mecanum wheels for a Lego Mindstorms Wheel Chair design. The nice thing about OpenSCAD is that I could quite easily change the other Mecanum wheel design into this smaller design. Only drawback of this design is that the Lego axles had to be replaced by nails as axles.

I have to admit, I tried to alter your stl files of the bigger wheels and gave up on it :D Probably it will take a looooong while till I'm finished with the bot, so many things to add.

Well I guess nails will do just fine. Hope that the wheels fit the bot.

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