Can I change from PLA to ABS mid-print?

[AB_Normal]

I have a 3d printer that says it can print with ABS, but the table heat will not go above 75c and I am told it needs to go to 110c. I am making a light switch plate that has raised letters. It always results in warping mid-print and I have to cancel it. I have also used utra-hold hairspray as adhesive before I start printing in ABS, but it doesn't work.

I would like to switch from my black PLA filament to my glow-in-the-dark green ABS filament when the printer gets to the point where it is printing the raised-letter portion of the part. At that stage of the print, I don't think table temperature would matter since it is several layers high by then and the light switch plate surface is solid. What are your thoughts on the ABS adhering to the PLA material? How can I search the gcode to see when it is starting the raised letter portion of the print? I was thinking I could add some gcode at that point to stop the print and present the table forward to me as a sign it is ready to change the filament to ABS, then change the temp setting for the extruder in the gcode to the higher ABS temp and wait til it reaches that temp before proceeding.

Any ideas/thoughts on this would be appreciated.

[brian442]

There's a lot of threads on this forum already about different ways to do this. You can create multiple processes in S3D, or insert an M0 command in the gcode automatically at the layer you want to pause at. Or you could even just wait and press the pause button in the machine control panel when you are ready

Anyways, if you do some searching, you should find some of the different options