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Re: [FTC]: Alternative to axles? Does hardening work?
Quote:
Originally Posted by RRLedford
Purchasing D-shaft is not legal, since the flat makes it a custom machined profile, and only round, square and rectangular profile metal bar material is legal.
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Actually, it was asked and answered on the forum and D-shaft from McMaster-Carr is legal:
http://ftcforum.usfirst.org/showthre...ull=1#post7492
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let tau = 2pi
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