variable pitch thread

[shaanmech]

How to create program for variable pitch thread, can it be created in turning itself or it requires advanced mill-turn??????????? If it is done using 4 axis surface milling i can't select surfaces to be machined as whole one so the tool follows a zigzag path how to machine these type of components???? Is there any option to do this help me please..........

[BillChapman]

We have done this using 3 axis milling. Create the curve you want to follow then use trajectory to follow the curve.

[shaanmech]

thank you Mr.Bill Chapman i will try using trajectory soon i will back to you..........

[shaanmech]

How did you do this? can you upload your model that can help me sir........... I m a beginner sir please help me.......