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Mecanum Wheel MK2

by Zaggo, published

Mecanum Wheel MK2 by Zaggo Apr 22, 2010

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Summary

This is the second incarnation of my Mecanum wheel design. It's a derivate of http://www.thingiverse.com/thing:2348 which I accidentally designed based on the wrong ball bearings (80034 instead of 624).

This design is now based on the (originally intended) 624 ball bearings. I was able to shrink the whole design, so the center wheel now fits on a standard Makerbot build platform and can be printed in one piece.

See my blog post at http://pleasantsoftware.com/developer/3d/2010/04/23/its-printable for more information on the project. This post also contains a video showing the assembly process.

Instructions

The center wheel exists in two flavours: uniwheel_left.stl and uniwheel-right.stl.
You need only one of both to build one Mecanum wheel. However, to build a chassis with omni-directional steering abilities, you'll need four Mecanum wheels, two "left" and two "right".
In addition to the center wheel, you'll need 16 "roller.stl" pieces. You might want to use Skeinforge's "Multiply" tool to print more than one roller per print.

You also need the following not (yet) printable parts:
8x M4x55mm bolt
8x M4 nut
8x 624 ball bearing
32x M4 washer
1x M3 nut
1x M3x3mm set screw (or M3x15 bolt, alternatively)

See http://pleasantsoftware.com/developer/3d/2010/04/23/its-printable for detailed build instructions.

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Comments deleted.

where did you but your 624 bearings ?

Dec 26, 2016 - Modified Dec 27, 2016

Hi,
Thanks for the great design. I'm printing it now. Mechanum wheels are ridiculous expensive to buy so this it awesome.

I would like to know the length of the M4 bolts I need so I can order them.
Thanks

hi,

what's the diameter for the motor axis?

thanks

Jul 13, 2016 - Modified Jul 13, 2016
Zaggo - in reply to Bruno62

6mm

(there's also a parametric version of this for OpenScad, where you can change all measurements. See http://www.thingiverse.com/thing:11165 in the Remixes section)

Parametric Mecanum Wheel

This is a near-perfect fit for a robot my students are working on. They used the uni-wheel as a template to draw their own.

This site and your drawings have helped focus the students on the concept of prototyping.

very nice project
what software did you use to design it? I wanna change motor shaft hole to different size, so I'd be more than glad for cad files ;)

I really want to make this but I can't find two of the non-printable parts.

M4 x 55mm Bolt
M3x3 set screw/M3x15 bolt
Can you tell me where to get/find them

Thanks.

cool object. awesome renders.

makes me want to print four in big size. buy four 24v handdrills and hack everything together to... we will see. 8-)

Your renders are absolutely spectacular! Have you ever used Grasshopper?

Thanks.

No, never used Grasshopper (I'm working on a Mac).

Beautiful! Nice renders too - what software did you draw and design it in?

Thanks!
I use Cinema 4D for my designs.

Frighteningly bad-ass.
Well done.

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