I ordered a couple of timing pulleys from Stock Drive Products for
my lathe attachment. The next day I found a cool FREE dxf to G-code
program called CamBam. One of the tutorials for it is " 2.5D Profile
Using a 2.5D profile to generate a 20 tooth HTD5 timing pulley".
http://www.brusselsprout.org/CAMBAM/tutorials/
They suggest getting a timing pulley dxf from guess who, Stock Drive.
https://sdp-si.com/eStore/
I never noticed before but when you click on the item you're interested in
and the description window pops up, at the bottom is a link to download
the dxf. I open it with my cad program, remove all the extra views and save
the pulley profile. I load that into CamBam and create the toolpath.
Now I can make my own timing pulleys with my mill. Wish I would have found
CamBam a day earlier, would have saved me a few bucks. Oh well.
I made a few pulley blanks on the lathe so now I have to try out the g-code.
Have to modify a .0625 endmill to get a little more depth of cut from it.
here's the blanks.
Later Hoss
http://www.hossmachine.com