[FTC]: Alternative to axles? Does hardening work?

[CENTURION]

Originally Posted by aklego

Yeah, the rulings on this one have been rather puzzling. The question was actually asked twice last season and the answers conflicted. The upshot was that McMaster-Carr D-shaft is legal but Servo City D-Shaft, due to a chamfered end, is not. That would sort of make sense except that McMaster-Carr shaft is chamfered as well....

I believe the difference was not just the chamfered end, but that the Servo City ones were cut to specific lengths too. Whereas the McMaster ones were stock length (a couple feet), and you would have to cut the sizes you want yourself.