metric vs standard designation on threadmills

[DUM1]

I have another person program I am running the thread mills are not working out, after the 5th time I open the file and see that the thread mills are under the metric designation, so I say hey? they say doesn't matter because it's driven off of the threads per inch designation.

thoughts?

[jstell]

What is not working out?  If it's a pitch problem, that should be set on toolpath parameters for single form cutter, or by tool definition if multi-form, and it'll be greyed-out on in the toolpath parameters.

Single or multi-form?

If multi-form, OD or ID?

If you use multiform (insert) designed for ID to cut OD thread, it'll cause problems.  Makes the minor small before you can get pitch diameter in tolerance.  (Don't ask me how I learned this.)

[DUM1]

its an internal, three actually 1/4-24, 10-32, 8-32, internal multi form they say from tool and it was giving the wrong pitch .05" for all three, they had their HICUT parameters wrong, so I fixed that but still got weird threads they said it's a Mastercam glitch that was supposed to be set " from tool " but didn't give the right pitch settings so I opened the program and saw that they had the thread mills set to the metric designation instead of imperial they said it don't matter if its imperial or metric designation. just wondering where this "glitch " they got came from