NordicCNC's build log

[jarjar]

Yes, the pulley sizes in the pictures are 20T and 40T. How many teeth need to be engaged at bare minimum? I have not yet found any supplier (I am trying to find those pulley's with taper lock) so for now during the design phase, I went with some sizes I could find on Ebay.

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20T and 40T is good, it's exactly what I use on one axis. Another handy calculator.

I had to deal with the same issue: finding clamping type aluminium pulleys, either HTD or GT3. From my researches those are rare beasts.
HTD taper-lock steel pulleys are relatively common, but add way too much inertia to be considered.

I found 2 options:
- CMT pulleys. The best but expensive, about $60 piece.
- Misumi, with separate taper-lock and pulley. Slightly less expensive, about $40.