Machining a helix curve on lathe

[moeb]

Hi, how can I program the attached file on mastercam using lathe machine? I did this on 4-axis mill before but I want to get G-code for lathe. Thanks.

Part1.stp

[crazy^millman]

40 minutes ago, moeb said:

Hi, how can I program the attached file on mastercam using lathe machine? I did this on 4-axis mill before but I want to get G-code for lathe. Thanks.

Part1.stp

A 4 Axis Toolpath. Have a nice day.

[moeb]

On 4/16/2021 at 9:11 PM, crazy^millman said:

A 4 Axis Toolpath. Have a nice day.

I'm confused. You mean cnc lathe can't do this?

[#Rekd™]

28 minutes ago, moeb said:

On 4/16/2021 at 12:41 PM, crazy^millman said:

 

I'm confused. You mean cnc lathe can't do this?

Have you tried your reseller for help?

[crazy^millman]

32 minutes ago, moeb said:

I'm confused. You mean cnc lathe can't do this?

You are asking if a Lathe toolpath can cut that shape? That would be considered a Rope shape and yes there is a toolpath in Mastercam to cut a rope shape using special tooling set at the correct relief angle to correctly machine a feature like that.  Problem for a lathe is going to be keeping the Tool in the correct place on a consistent bases with that much helix. Anyone that has every tried to cut 1 Thread per 3" lengths before understands you get an encoder problem with to much travel in Z per the spindle turning. This now becomes a very tricky process and asking a lot of most CNC lathes. Been a few topics about rope Threads so do a search and see what they came up with. Why most slow spiral shapes like this are cut on a mill.

[moeb]

29 minutes ago, crazy^millman said:

You are asking if a Lathe toolpath can cut that shape? That would be considered a Rope shape and yes there is a toolpath in Mastercam to cut a rope shape using special tooling set at the correct relief angle to correctly machine a feature like that.  Problem for a lathe is going to be keeping the Tool in the correct place on a consistent bases with that much helix. Anyone that has every tried to cut 1 Thread per 3" lengths before understands you get an encoder problem with to much travel in Z per the spindle turning. This now becomes a very tricky process and asking a lot of most CNC lathes. Been a few topics about rope Threads so do a search and see what they came up with. Why most slow spiral shapes like this are cut on a mill.

Thank you.