Thread: pic: High Reduction 2-Stage Gearbox
View Single Post
  #3   Spotlight this post!  
Unread 24-12-2016, 12:06
Bryce2471's Avatar
Bryce2471 Bryce2471 is offline
Alumnus
AKA: Bryce Croucher
FRC #2471 (Team Mean Machine)
Team Role: Mechanical
  
Join Date: Feb 2013
Rookie Year: 2007
Location: Camas, WA
Posts: 416
Bryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud ofBryce2471 has much to be proud of
Re: pic: High Reduction 2-Stage Gearbox
Great design! I have thought about making a very similar ball shifting gearbox.
Quote:
Originally Posted by Cothron Theiss View Post
Do you mind explaining or posting your Lewis Gear calcs? The formulas and calculations themselves are kinda configurable, and I've run into issues not including all the necessary factors. My opinion on 32DP gears is that they're great for the first stage, but a little iffier on second stage, especially with 8" wheels. I would also caution against an aluminum pinion on the second stage since you're running 8" wheels. I've never actually run a 32DP gearbox so I'm hesitant to use it throughout a high-torque gearbox. But if you think the calculations are all good, I'd love to see how it turns out.
It looks like the first stage is 32dp with steel pinion gears from andymark (Just a guess). But the second stage looks like standard 20dp gears.
__________________
FLL Team Future imagineers
2010 Oregon State Championships: Winners
2011 International Invite: First place Robot design, Second Place Robot Performance
FRC Team Mean Machine
2012 Seattle: Winning alliance
2013 Portland: Winning alliance
2013 Spokane: Winning alliance
2014 Wilsonville: Winning alliance
2014 Worlds: Deans List Winner
Last edited by Bryce2471 : 24-12-2016 at 12:17.
Reply With Quote