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Unread 17-12-2015, 15:26
RRLedford RRLedford is offline
FTC 3507 Robo Theosis -- FRC 3135
AKA: Dick Ledford
FRC #3135 (Robotic Colonels)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2009
Location: Chicago, IL USA
Posts: 286
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Re: [FTC]: Chain-driven drive trains

Quote:
Originally Posted by wgardner View Post
Hi Dick,

Can you provide a link to the clamping motor hub you're describing? I can't find it on the Pitsco site. Thanks in advance!

My Bad - this is an AndyMark product and it is NOT a hub but a double split sleeved 16-toothed sprocket and a matching split clamp collar. :

S25-16T 6mm Bore Aluminum Sprocket (am-3185)
LINK→http://www.andymark.com/product-p/am-3185.htm


So as long as you can get the gear ratio you need while being locked in for 16 teeth at the motor sproccket it is an excellent performing item.

BTW- my complaint on the Aluminum alloy is also BOGUS, as it is listed as being 7075, so the one shaky clamp screw thread may have been caused by either a bad hole drilling/tapping or a bad screw thread.

If you can make it over the hump of the high $20 price, you will not be disappointed. The ability to reposition the sprocket axially along the shaft with out having to move the motor or incurring progressive shaft damage from cycled set screw gouges, that eventually lead to hubs jammed onto motor shafts, is an added bonus.

-Dick Ledford
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FTC 3507 RoboTheosis
FRC 3135 Robotic Colonels
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