Quote Originally Posted by JAZZCNC View Post
I just noticed the size of the pulley and I'm assuming it's to scale.? Try to keep the pulley size small as possible to keep inertia low but at the same time making sure you have enough teeth engaged so don't get jumping teeth or premature wear. If you must use a large pulley then try to use an aluminium one, again to keep inertia low.
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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