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Unread 10-01-2016, 02:47
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bEdhEd bEdhEd is offline
Design and Drive Team Mentor
AKA: Frank E.G. Shiner
FRC #0701 (The RoboVikes)
Team Role: Mentor
 
Join Date: Nov 2012
Rookie Year: 2009
Location: Fairfield, CA USA
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Re: H Drive Using Omni Wheels for Stronghold?

Why did your team decide on H drive? Did you do a weighted objectives table, or do something else to figure out a consensus? I'd really like a justification with some good reasoning because I would not recommend this.

My team tried H drive for Recycle Rush and found that even on the scoring platforms, the robot would bottom out and at least one wheel would lose contact with the platform and often we just got stuck. Note that this platform is just smooth with a slight slope. Now imagine trying to get over this game's defenses. I predict it's success rate to be low, if not 100% unsuccessful, unless there's something special about this H drive. That's why we switched to mecanum last season.

My only suggestion for possibly making this work is to use the largest omni wheels you can find and have maybe 4-5 inches of clearance from chassis to floor. Even then, you'd need to address the issue of not damaging your omni-rollers.

From last year's experience with an H drive that barely moved over a short smooth platform, I recommend spending your team's time and resources on a drive system that is better suited for this game like a tank drive with 4-8 pneumatic wheels or a tread system.

We wasted so much machining time and resources last year on H drive and it was absolutely underwhelming, and I do not want your team to lose something so valuable over something so lacking in value itself.

I'd only say yes to this idea if I could be given a good reason that shows the value of H drive in this game.
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