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Unread 29-08-2016, 23:52
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gc_coxen gc_coxen is offline
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AKA: Griffin Coxen
FRC #1318 (Issaquah Robotics Society)
Team Role: Mechanical
 
Join Date: Apr 2014
Rookie Year: 2014
Location: Washington
Posts: 35
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Re: How are teams mounting drivetrain encoders on WCD?

Quote:
Originally Posted by Greg Woelki View Post
Properly tensioned timing belt runs have minimal backlash and will not require any code to compensate for play.

If you're going to use direct c-c, why bother using the WCP side bearing blocks? Teams have been very successful using flanged bearings directly in 0.125" and 0.100" wall tubes. The benefits of dropping the bearing blocks are lower weight, lower cost, slightly reduced tolerance-stackup and easier/more precise machining (circular holes vs rectangular cutouts).

Also, what size pulleys and wheels do you plan to use?
Size constraints in the gearbox allow for a 30T pulley running 2x 9mm HTD belts. Will be running 4" colsons.

http://imgur.com/a/jkSMH <-- My thought behind using this bearing block was additional strength around the bearing to help mitigate the effect of load on the wheel axle. I vaguely remember seeing a thread on here awhile back showing a broken frame due to placing the bearing directly in the tube
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