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Unread 06-02-2017, 13:12
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ClockworkGold ClockworkGold is offline
Wears Sparkly Gold Pants
AKA: Andrew F.
FRC #2169 (KING TeC)
Team Role: Leadership
 
Join Date: Mar 2014
Rookie Year: 2014
Location: Prior Lake
Posts: 19
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Re: Thunderhex and Thunderhex Bearings

Quote:
Originally Posted by BumblingBuilder View Post
We're just happy we didn't need to slice of faces of the shaft on a mill this year
Hate to break it to you Matt, but I spent all of yesterday flycutting our intake axles

To all the teams struggling with hex shaft and bearings, here are some tips I've accumulated over the past year on the subject:
  • According to our civil engineer and machine shop specialist mentor, "0.002 inches isn't a press fit, it's a miss." Physically go to your local metal supplier with a caliper, a few new bearings, a rag, and some carburetor or brake cleaner to wide off any excess dirt or grease that may be on the stock. Hex is cheap, about $0.80/foot so loading up on up to 60 feet is a great idea if you're building two robots like a lot of teams are. Just remember, if it's not perfect, then it's absolutley not worth the hassle.
  • ThunderHex does indeed work with half inch hex applications, except post 2015 hex bearings. If you want to power ThunderHex in a live axle scenario without an assembly headache, you need P/N: 217-4006 or 217-4270.
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2014: FRC 2169 Scouting and Spirit & FTC 7897 CAD

2015: FRC 2169 CAD, Strategy, Scouting & FTC Mentor 3385, 3387, 4509, 7899, 7900

Last edited by ClockworkGold : 06-02-2017 at 13:36. Reason: More bearing information, also spelled carburetor wrong
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