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Unread 29-03-2010, 11:13
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Leav Leav is offline
Spud Gun Division
AKA: Leav Oz-Ari
FRC #3316 (D-Bug)
Team Role: Mentor
 
Join Date: Dec 2004
Rookie Year: 2005
Location: Technion, Haifa, Israel
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How do you model the mecanum rollers?

Ok so this is somewhat of a puzzle I think..

Even though my team has never used mecanums, I've been thinking about them and the design challenge they pose.

So it got me thinking about making a CAD model, and while running the model through my head, the most obvious problem was the rollers.

so this is a puzzle for you: how would you model the rollers of a mecanum wheel?

to give everyone a chance, please post your method in a white font, requiring someone to highlight it in order to read it:

---~===!Spoiler!===~---

1)create a cylindrical roller, and a giant tube with an ID of the desired wheel OD. extrude cut with the tube (or use boolean subtraction: result=roller-tube). now the roller has a profile on it which can be used in order to revolve cut the rest of the roller.

---~===!Spoiler!===~---

this method is still somewhat convoluted in my opinion and I'd like to hear something easier and/or cleaner (or just any other creative idea!).

Ready? set. CAD!

-Leav
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"We choose to build robots this season and do the other things; Not because they are easy, but because they are hard."
-Paraphrasing JFK

Participated in FIRST as a student: 2005-2006 (But still learning every season!)
Mentor: 2008 - ? (Team 2630 2008-2011, and Team 3316 since 2013)
Engineer: 2011 - ? (B.Sc. and M.Sc. in Mech. Eng. from the Technion IIT)
FIRST Volunteer - 2007 - ? (MC, FTA, FIRST Aid etc.)

Last edited by Leav : 29-03-2010 at 11:16.
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