[4DThinker]

One their wiki page probotix has a post processor for wrapping X to A.

Vectric - PROBOTIX :: wiki

Normally their 4 axis is mounted between the front and back rails, and that is the post processor you'll need if mounted that way. If you have it mounted between the side rails then the best I can suggest is to download that X to A post processor and edit it with a text editor. Save it renamed to reflect the change, in your post processor folder and you should be good to go.

4D

 

[4DThinker]

This forum won't let me upload a .PP file. Unpack the .ZIP file and try it out. There is a line that says ROTARY_WRAP_Y = "A", which you might need to add a minus sign (-) in front of the A to if your text cuts mirrored rather than correctly. Hope it works/helps.

4D

 

[4DThinker]

I'm sorry Ron. I gathered that you had your 4th axis running side to side. If it is running front rail to back rail then the post processor on Probotix' wiki page is what you want. Any chance you can post a photo of your CNC with the 4th axis mounted on it?

Secondly, do you get a pop-up window that wants to verify your wrapping settings when you use either the XtoA or my YtoA post processor?

4D

 

[4DThinker]

Ron,

The way you have it mounted you want to map X values to A values.
The original XtoA post processor should work for you, but may need the -A changed to +A (leave off the +) if the text is wrong.

Throw out the YtoA PP I posted as it shouldn't be what you need. If you don't have a PP named "Emc2 Wrap XtoA(inch).pp" or something similar then the one on Probotix's wiki vectric page should work.

I have never carved text on my rotary axis, so have no idea if it is spinning the right direction or not.

4D