worm with lathe

[INGTURK]

hi

this my first Topic in this forum!

 

how cutting a worm with lathe CNC

is that it is possible to use the 3D profile in thread?

[SlaveCam]

It's not possible to turn a custom profile with Mastercam "by default". It can be done, but requires heavy post-processor modifications especially done for this kind of thread turning. I do it by hand using controlled threading G32 with Mastercam to get the threading cycle start points for a grooving tool.

 

It's just easiest to buy the appropriate insert or grind it.

Oh and btw, welcome to the forum

[INGTURK]

ok i understand you!

but you can't have perfect start and end point like this...this is a very problem!! like in trapezoidal thread..

 

 

thnx my friend

 

 

 

[SlaveCam]

Yes, you need to change the lead-in and lead-out angles to get that sort of thread start/end on the control. Can you use live tooling to mill it? Mastercam has multiaxis toolpaths for this if you have the 3D model...

[INGTURK]

very good!

i understand but i want working in turning machine!

 

thnx

[SlaveCam]

I can give you an example after the weekend, but the code is Fanuc-specific.

[Brad Lisle]

Do you have live tooling? If so you could c-axis wrap the thread profile with a taper mill. Its not pretty, but can be done.