View Single Post
  #12   Spotlight this post!  
Unread 23-01-2017, 14:18
s-neff's Avatar
s-neff s-neff is offline
Registered User
AKA: Sam
FRC #0841 (Biomechs)
Team Role: Mentor
 
Join Date: Apr 2016
Rookie Year: 2009
Location: California
Posts: 50
s-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud ofs-neff has much to be proud of
Re: Gear Sliding down Ramp

Sorry, but those actually are completely different plastics for the application.
The coefficients "look similar", but going from 0.28 to 0.38 [as quoted earlier in thread] is a 30% increase in friction!

Textured FRP or textured ABS are both much better choices than smooth polycarb, if you can't get HDPE in either smooth or "orange peel". Consider bringing the gear to the store to test your substitute-of-choice before buying?
(Our smooth HDPE works great, I haven't tested our textured ABS)
__________________
Fun:
Mentor - Team 841 (2015 - ? )
Mentor - Team 4 (2013 - 2014)
Student - Team 192 (2009 - 2010)
Work:
SunPower Systems, Product Engineering - Utility Power Plants (2015 - ? )
BSci, Mechanical Engineering, UCLA (2010-2015)
Reply With Quote