30-07-2014, 15:45
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no bag, vex only, final destination
AKA: Pinecone
 FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks) Team Role: Mentor
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Join Date: Dec 2008
Rookie Year: 2006
Location: Glastonbury, CT
Posts: 7,660
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Re: pic: Experimental Octocanum/Butterfly Design
I wouldn't run any drop on this kind of drive. 3/8" drop is extremely large for any drive - there will be WAY too much rock. The "standard" in FRC hovers around 1/8".
If my math is right, given a rigid chassis, centered CG, this robot should be able to turn with six wheels but no drop. It will be harder to turn than with a drop center but it still should be able to. Since you have omnis you can drop down, you can instantly turn about either end of the robot just by dropping a pair of omnis. Thus by making the drivetrain harder to turn in traction mode, you'll have less trouble with defenders spinning you.
Some butterfly teams (most) primarily drive on the omnis. These teams omit the center wheel entirely, using traction as a "no spin" mode. Whether or not you do that depends on how you wish to drive the robot and the design goals of the drive, but it's something to consider.
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