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Unread 01-07-2014, 20:08
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ShortOnes
AKA: Tyler Gibb
FRC #2517 (Evergreen Robotics)
Team Role: Mentor
 
Join Date: Dec 2013
Rookie Year: 2011
Location: Vancouver, WA
Posts: 203
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Re: pic: Drivetrain Concept

Quote:
Originally Posted by echin View Post
I'm almost done with the next revision and I'll post a picture when I'm done (I'll be gone for the rest of the week so it might be a while). I changed the center wheel to a pivoting piston actuated system instead of linear spring loaded, which saves some weight. I also removed the back wheel module and changed the drive to something more like 624's grasshopper drive. This requires the drive to tip at an extreme angle to use the traction wheels and only saves a little more than 1 lb, so I may change it back to more like what I had before.

An H drive would be able to drive like a swerve with some fairly simple programing, so why does it seem like most teams using H drives don't drive them like swerves?
A swerve drive has 100% thrust vectoring. An h drive will almost always be weaker moving in one of its directions. It may be faster accelerating in one direction then a swerve but a swerve can accelerate the same rate on all directions making holonomic motion easier.
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