single point thread milling

[sensph]

Could any one point me to a tutorial or another source that would explain how to thread mill on Rhino Cam. I don't undertand the parmaters and I don't know how to set up a tool for a single point thread mill.

MAny thanks in advance

Simon

[davereagan]

How about programming the thread milling manually with G code? It's easier than you think. Example: 3/4"-10 thread. 1/2" diameter single point 60 degree cutter. Hole already drilled to .650" The helical interpolation move winds around on a .128" radius 10 times and ends at Z=0.

:G90
M6T1
G0G95 X0 Y0 Z.1 H1 M3S3000 F.003
G0 Z-1
G1 X.128
G3 X.128 Y0 I0 J0 Z0 K10
G0 X0
G0 Z1M2

Obivously, make the adjustments for your depth, thread pitch. diameter, feed and speed and run it above the part to test.


http://www.carbidedepot.com/formulas-threadmilling.htm

[sensph]

Hello,

I just hadn't thought about doing it that way. I had Rhino CAM cutting the Flats of the nut and making the internal hole.

You're right I could just add the thread cutting Gcode to the end of the Rhino Post. Remembering of course to make sure the right offsets / modals are on.

I will give it a go . Many thanks for the suggestion.

Best Simon