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A separate build thread for the brass prep tool would be really cool.
The higher numbered cutter takes a skinnier cut, so you should be able to use a lower numbered cutter over it as long as you can line up the centers accurately. The cutters should be stamped or etched with the number on the side.The nbr 8 is the one on the right.
Interesting to see the numbering differences. On all 3 of my sets, same chinese source, all the 12/13 tooth ones are nbr 1, the 135-up ones are nbr 8 - they are all labeled with the range and cutter nbr. Wonderful how standards are followed!
Nice job on your brass prep machine! That's a nice compact setup. What will the Arduino control? John
I have been checking in on all the projects here a couple times a week. (I'm really liking the Frisco Standard, and the Muncaster Grasshopper)