View Single Post
  #25   Spotlight this post!  
Unread 19-11-2013, 12:51
themccannman's Avatar
themccannman themccannman is offline
registered lurker
AKA: Jake McCann
FRC #3501
Team Role: Mentor
 
Join Date: Feb 2013
Rookie Year: 2011
Location: San Jose, CA
Posts: 432
themccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond reputethemccannman has a reputation beyond repute
Re: Prototype transmission for potential use this year

Quote:
Originally Posted by Woolly View Post
This would be really interesting if applied to a crab module or 6-cim 6-wheel drop center with traction wheels.
If you put some wide-grippy traction wheels on this you'd be destroying your worm gears left and right. The only reason I haven't pointed this out is because the limited traction of the omni wheels will impart very little force back into the gears in the case of an immediate stop or getting pushed. I'm pretty sure this transmission would not last you more than one competition on anything other than omni wheels. The other issue with this is that the gears will lock up much easier with slight damage and wear than a normal transmission would. Slight bends in the teeth are much more prone to locking up worm gears than normal gears.

Here's a quote from cory (who knows more about this stuff than 99% of this forum) mentioning the dangers of using worm gears and relatively soft metals for drivetrains. This comment was from the first picture that softwarebug2.0 posted.

Quote:
Originally Posted by Cory
That grease won't help them if they collide with another robot at high speed... I remember from 2004 and prior about people using the drill motors with their gearboxes, without removing the anti-backdrive pins, and completely destroying the internals during impact with other teams.
__________________
All posts here are purely my own opinion.
2011-2015: 1678
2016: 846
2017 - current: 3501

Last edited by themccannman : 19-11-2013 at 12:58.