Quote:
Originally Posted by roboticWanderor
but then how were the ABS roller's bores made then? it seems a long bore like that would be almost impossible in a flexible material like ABS 
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The sponsor who made them specializes in all sorts of "tubing" and this really wasn't an issue at all for them. The lathes had several times the travel required, and there are all sorts of "accessories" that will stabilize parts will being turned (like a follow rest). Pretty much, I walked into their shop expecting them to say no as I was asking for too much, and they laughed like what I had given them was no challenge at all.