View Single Post
  #2   Spotlight this post!  
Unread 10-09-2013, 19:02
Richard Wallace's Avatar
Richard Wallace Richard Wallace is offline
I live for the details.
FRC #3620 (Average Joes)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1996
Location: Southwestern Michigan
Posts: 3,629
Richard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond repute
Re: Andymark Performance Wheels: How Were They in 2013

We used 4" AM performance wheels in a 4WD wide set-up, powered by VexPro single-speed single-reduction 7:1 gearboxes with 3 CIMs per side. Sprocket ratio from the gearbox output to the wheels was 1:1 (34 tooth #25, if I recall correctly.)

We also purchased several rolls of 1" wide brown roughtop from Andymark, and held it on the wheels using wide-head rivets.

While the rivets held nicely, the roughtop tread de-laminated routinely when we were playing defense. 3 CIMs per side is a fun drivetrain; we were speedy, and were able to push many robots, but needed to replace tread after every match when we did so.

I really like the AM performance wheels but we will need a much more durable tread system if we use them again.
__________________
Richard Wallace

Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)