Hello I have a piece of 1/2" cold rolled steel I wish to make a fixture plate for a SMW Mod vise on my 770. I have chosen to thread 1/4 -28 rather than 1/4- 20.
My Cam software supports thread milling. (VisualMill) I think each pass is of equal amount. As I use metric in pathpilot I will have to convert thread pitch to mm
I have not used thread milling before and would like advice on Spindle speed and depth for each pass. I have no issue with how long this takes and would prefer not to break the cutter I have ordered from Tormach. I have about 30 holes to thread
I can raise plate to allow coolant and chips to go through which I think will help.
Thanks in advance.
John.