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Unread 25-11-2013, 02:20
Oblarg Oblarg is offline
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AKA: Eli Barnett
FRC #0449 (The Blair Robot Project)
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Re: Practical 3D printed parts

Quote:
Originally Posted by mman1506 View Post
That's interesting, I've seen people cut HTD pulley profiles on a CNC but GT2 pulleys have curves that would be difficult to cut without a 4th (or even 5th axis). It would be interesting to know how they obtained the proprietary GT2 profile.
I pulled the CAD of bbman's website, with the hope that the profile is correct (or close enough to correct that it'll work, the fact that their CADs have different profiles for HTD and GT2 pulleys seems to indicate that they're not just using a single erroneous profile for all of them).

I had heard that other teams had successfully machined pulleys from CADs obtained this way, so it seems worth a shot.

If it doesn't work, I'll check out the parametric pulley link nicholsjj posted (thanks for that, by the way) - though I don't have OpenSCAD on my computer right now.
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Member, FRC Team 449: 2007-2010
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