04-19-2015, 09:06 AM
(This post was last modified: 04-19-2015, 09:20 AM by Sunset Machine.)
A rotab makes setting easy, but now that I think about it you should be able to just set the head on the table at an angle matching the face angle of the blank. The formula for the angle to set the head itself to is 90-atan((2*offset)/(teeth/DP)). For example: .650" offset, 25 teeth, 20 DP, comes up 43.877 degrees. I may have these settings transposed. Apologies if so.
Centering the cutter itself was less scientific. A little blue and a square to make a mark, then the cutter eyeballed to it.
The rolling offset for a plain bevel goes something like 1/4 of the circ pitch, and 1/4 of the holes used for dividing. Somewhere was described "why this works", but it was a study in math all in itself. Therein lies the solution.
It starts on page 119 in this PDF.
https://ia700400.us.archive.org/3/items/...lsrich.pdf
Centering the cutter itself was less scientific. A little blue and a square to make a mark, then the cutter eyeballed to it.
The rolling offset for a plain bevel goes something like 1/4 of the circ pitch, and 1/4 of the holes used for dividing. Somewhere was described "why this works", but it was a study in math all in itself. Therein lies the solution.
It starts on page 119 in this PDF.
https://ia700400.us.archive.org/3/items/...lsrich.pdf