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  1. #10
    Quote Originally Posted by CNCRY View Post
    Also trying to find the right pulleys for Y and Z - planning on 15mm HTD5 (10mm bore) in 1:1 ratio - but how many teeth do people go for?
    20T are what I find best, don't go less than 18 because it makes it difficult with the boss size and you don't have much left for the grub screws. Also, don't try boring them by just drilling on a drill press, they need to be drilled and reamed accurately. I suggest if you haven't got a lathe or a very very good drill press or Minimill then buy them already bored.

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