01-04-2016, 13:25
|
 |
 |
FTC, I have returned.
AKA: @doctorfogarty @GarnetSq
FTC #11444 (Garnet Squadron) & FRC#1102 (M'Aiken Magic)
Team Role: Mentor
|
|
Join Date: Aug 2009
Rookie Year: 2006
Location: SC
Posts: 1,555
|
|
|
Re: pic: Team230 Damaged Frame Rail
Quote:
Originally Posted by electroken
That's 0.062" wall thickness 6061-T6 tubing. The drivetrain is 6WD, 8" pneumatic tires in a WCD (cantilevered) configuration.
It was the ramparts that did us in, with that big shot to one wheel at the start of each crossing. We told our driver to drive it as if he stole it, and he did not disappoint. 
A spacer within the tube may have bought us time, but failure was inevitable. the other side of the tubing has significant stress cracks. As it was, the thing made it halfway through its 17th match before it failed. The new frame ( 0.125" wall thickness) seems bulletproof so far. We would have started off with that if we'd fully understood the brutality of this game. |
Yeah all of the teams I work with are using 0.125" frame rails and we haven't seen any damage at all.
__________________
John Fogarty
2010 FTC World Championship Winner & 2013-2014 FRC Orlando Regional Winner
Mentor FRC Team 1102 M'Aiken Magic
"Head Bot Coach" FTC Team 11444 Garnet Squadron
Former Student & Mentor FLL 1102, FTC 1102 & FTC 3864, FRC 1772, FRC 5632
2013 FTC World Championship Guest Speaker |
So kudos for asking advice... you've got plenty of good advice so far in this column... but honestly, if Orville and Wilbur Wright had taken good advice they would have packed up and gone back to their bicycle shop. - dtengineering [more] 
Threaded Mode