View Single Post
  #20   Spotlight this post!  
Unread 06-02-2017, 12:32
BumblingBuilder's Avatar
BumblingBuilder BumblingBuilder is offline
Red is fast
AKA: Matthew
FRC #2169 (KING TeC)
Team Role: Mechanical
 
Join Date: Apr 2015
Rookie Year: 2014
Location: Minnesota
Posts: 62
BumblingBuilder will become famous soon enough
Re: Thunderhex and Thunderhex Bearings

Quote:
Originally Posted by Jimmy Nichols View Post
Have you found another option when using hex shaft? We bought some from McMaster-Carr last year and had issues with the tolerance on it vs. the tolerance of the Hex Bearings and had an extremely difficult time installing the shafts on our climber. So we decided to go with the Thunderhex this year.
Andymark offers 7075 hex shaft that our team now uses for drivetrain axles (but works for anything else). If anything, however, this shaft is a little too thin. There's a small degree of play in our wheels that are mounted on it, but we haven't noticed a loss in performance as a result.
It could even just be our wheels too. I've been too busy with other parts of the robot to address the seemingly trivial problem that is axle size. We're just happy we didn't need to slice of faces of the shaft on a mill this year

We also get hex shaft from a local metals warehouse, Discount Steel. They may or may not ship to your area... but if you have a local metals warehouse I'd imagine they would have hex shaft. If you do have a shop nearby bring hex bearings and test them on the shafts before you buy them
__________________
2014: FRC 2169 scouting/spirit, FTC 7897 Mechanical

2015: FRC 2169 Mechanical/CAD

2016: FRC 2169 Mechanical/CAD
2017: FRC 2169 Head of Mechanical

Last edited by BumblingBuilder : 06-02-2017 at 12:41.
Reply With Quote