Thread: Gear ratios for launcher
View Single Post
  #11   Spotlight this post!  
Unread 06-02-2012, 01:16
Garrett.d.w's Avatar
Garrett.d.w Garrett.d.w is offline
Build Lead
FRC #2733 (The Pigmice)
Team Role: Alumni
  
Join Date: Jul 2011
Rookie Year: 2010
Location: Portland
Posts: 318
Garrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to beholdGarrett.d.w is a splendid one to behold
Re: Gear ratios for launcher
Two weeks ago I made a pitcher using two rollers made out of 2.5" PVC covered in wedge top tread. This was powered by two 775s on banebot 46-1 gearboxes with no chain reduction. The compression of the balls was about 2 inches.

I would be comfortable shooting from half court with this thing. It is also good for rapid fire, the 775s have so much torque that the rollers will spin at a steady speed no matter what.
__________________
"A mind once stretched by a thought will never regain it's original dimensions."

Optimists think the glass is half full.
Pessimists think the glass is half empty.
Engineers realize it's twice as big as it needs to be.