Please help with post processor for custom X-Z-A live tooling lathe without Y axis

Please help with post processor for custom X-Z-A live tooling lathe without Y axis

maksym.goryachok
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Please help with post processor for custom X-Z-A live tooling lathe without Y axis

maksym.goryachok
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Hey everyone, I own a sherline lathe that I have modified so the spindle runs on a positional servo-stepper hybrid. I have also mounted a high speed spindle to the cross0slide but DO NOT have a Y axis on the lathe. Everything I do is through linuxcnc, and I have everything set up for the physical build of the machine, and setup for linuxcnc.

 

machine setup: stepper driven C axis holding stock is along the Z axis, cross slide X axis is perpendicular to Z, and the spindle on the cross slide is along the Z axis. 

 

The only issue I am running into is post proccesor to do the motions (Which are essentially 2D milling operations). I set up my machine's kinematics (will attach a screenshot of that)

 

I am struggling on how to approach it. I found an old thread that suggested doosan's mill-turn post and just disabling Y axis, which I did, and it does generate gcode but uses a lot of different nomenclature and codes that linuxcnc does not use. So I am now wondering if I should instead start with the linux mill post (and just use a separate post for turning) and try to convert it to my setup? Or should I try to keep sticking with Doosan's post.

 

Has anyone done anything like this (live tooling lathe with no Y axis)? Please help!!

 

 

EDIT: I should also add: after disabling Y axis in the Doosan millturn post, I do infact get Gcode that does not use Y axis moves and imagine it is correct - however, there are codes that linuxcnc does not use such as U, W, M89 to lock the spindle, etc.

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maksym.goryachok
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Please help - I made some progress but am really stuck - should I instead be trying to find a 4th axis post processor and remove the Y axis??
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