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Stuart1745

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Reply with quote  #1 
So for the last 10 years the school I have mentored (Pearce High School from Dallas BEST) has been using Omni Wheels instead of casters or skids as part of their design. We have found them to be more efficient and simpler to integrate into driving game designs.

We wanted to share the GrabCAD that contains all the working files for last years models; Solidworks Models, CAM drawings, and assembly instructions (work in progress). 
http://bit.ly/BESTOmni

It should be noted that these take a fair bit of time to manufacture you will also need a CNC mill.




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gyoung

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Reply with quote  #2 
What are material are you using to make the wheels?
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Stuart1745

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Reply with quote  #3 
The plates are 3/8th inch plywood
The small wheels are 1/4 inch plywood
The axles are the igus rod. 
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gyoung

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Reply with quote  #4 
Nice
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EvansPhysics

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Reply with quote  #5 
Thank you for sharing.  We are making our first foray into CNC this year.  The plans could be a great starting point if we ever opt for omni-wheels again.  We used them last year, but without a CNC it took lots of patience, a circle cutting jig, a drill press and a band saw, etc.

How do the small plywood rollers hold up/work on the carpet.  The major difference in ours were that our rollers were pvc on the edges.  We also used the oak dowel for the axles as the aluminum was already used elsewhere.  worked fine last year, but with the humidity over summer, they are swollen and bind a bit now.

If we use this idea again, we will probably try to reduce the weight a bit.

Any pics of a finished wheel?

Omni rollers - close up 2.jpg     Omni-wheels 2.jpg  
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Stuart1745

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Reply with quote  #6 
Here are some examples through the years. 

https://goo.gl/photos/amyaMGsduMnc7SFs9

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jgraber

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Reply with quote  #7 
Here is another implementation I have seen:
omni_wheel3.jpg 

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