Quote:
Originally Posted by Electronica1
You would really want the pivot on the mecanum wheel because the mecanum wheel is always applying force to the side. This is the reason you use thrust bearings with mecanum wheels. You should also look at the strength of your module, even though the design looks cool, you should really make it stronger.
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Deep groove ball bearings, well lubticated, should also be able handle the thrust loads that a 120 pound robot can generate.
Our FRC team (3135 Robotic Colonels) will likely be doing a mechanum drive year.
Our team also does the FTC program (3507 Robotheosis), and we recently qualified for the Illinois state competition, winning tour first regional as the 1st seed team and alliance captains using the mechanum drive scheme pictures below.
In our 2nd regional we won the Rockwell Innovation award.
Note how the slotted framing allows for fine tuning the robot's wheel base length and quick/easy chain tightening. Wheels & axles free spin in the double nested channel sleeve bearing blocks. The hardened 10-32 socket head bolts with polished unthreaded zones engaging the sleeve bearings, make SOOOOO much better axles than the Tetrix bendy D-shafts.
-Dick Ledford
-Dick Ledford