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Selecting print head on XL  

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Cadaver
(@cadaver)
Active Member
Selecting print head on XL

I have my Prusa XL 5T loaded with PLA on tools 1-4 and PETG on tool 5. I have a bgcode to print PETG, but the printer keeps insisting I use tool #1 and thus won't print. Is there a way to tell the printer I want to use the 5th print tool and override the default?

I have been looking through the printer filament and print menus, plus prusa slicer, looking for assignment of a print head/tool for a specific single filament job. It may be staring me in the face, but I'm missing it.

I'm new to the XL. I'm about 3 hours into initial test prints and it's great!

Posted : 23/02/2024 10:04 pm
Cadaver
(@cadaver)
Active Member
Topic starter answered:
RE: Selecting print head on XL

After trying various things on the print tool mapper screen (on the printer), I found a way to "remap" the print job to tool 5. Not the most intuitive, but you can select print head 1 (called for by the gcode) and remap to print head 5. This makes it seem like it was set in Prusa Slicer. I see in that menu under "Filament Settings", there is a pull down for extruders 1 thru 5, but nothing that says this selection will be called out in the gcode. Trying more experiments.

I would think the settings would need to be mapped at the printer only since PrusaSlicer won't know (??) what spool of what filament is loaded into what print head when the gcode is created. Still learning about how to declare a multi-material print so I can print something using a combination of PETG (say for a box) and TPU (say for a seal around the lid).

Looking for any good advice on how to handle this kind of multi-material and specific head selection for print jobs.

Posted : 23/02/2024 10:19 pm
Cadaver
(@cadaver)
Active Member
Topic starter answered:
RE: Selecting print head on XL

Okay, I may be getting closer:

Take this example: Using OpenSCAD, I create a box and insert a gasket around the perimeter of the mouth. I do this with 2 distinct shapes. I export to STL and open with PrusaSlicer. It seems the only way to assign PETG to the box and TPU to the gasket is to use the filament presets on the "Plater" screen and use the multi-color tool to "paint" the box with one color and "paint" the gasket with another. Export to gcode and get to the XL printer and select for print. Then remap "tool 1" to "head 4" with PETG loaded and remap "tool 2" to "head 5" with the TPU.

Is there a cleaner way to do this? This is the one of the greatest capabilities of the XL. Not quite as intuitive as I had hoped, but maybe an idea for future software updates. So far, I'm a very happy customer!

Posted : 23/02/2024 10:49 pm
Cadaver
(@cadaver)
Active Member
Topic starter answered:
RE: Selecting print head on XL

(Multi-material printing discussion moved to this thread)

Posted : 23/02/2024 11:19 pm
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