I have found a workaround for now.
A 50/50 mixture of PVA glue (I’m using this exact one, but any other school-grade PVA glue should do) and water, brushed evenly on the bed and leaving the water to evaporate before starting the print.
I was able to finally print my first successful batch of key rings, with the only downside that I had to remove a thin layer of dried PVA from the print (childhood memories), and had to wash the bed again.
This is barely a workaround and not a solution, as it’s absolutely unacceptable that such an advanced printer needs a trick out of 2013 just to print a simple PLA object.
I’m currently testing with a 3rd party bed and no glue, and I will report in 24 hours (or sooner, if it detaches again).
Here are some other modifications I made to the print profile that worked:
- Started with the standard 0.2mm nozzle profile, 0.1mm layer height
- Printer setting - machine gcode - machine start g-code:
almost at the bottom, the line
;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==
;curr_bed_type={curr_bed_type}
{if curr_bed_type=="Textured PEI Plate"}
G29.1 Z{-0.02} ; for Textured PEI Plate
{endif}
I modified it to
;===== for Textured PEI Plate , lower the nozzle as the nozzle was touching topmost of the texture when homing ==
;curr_bed_type={curr_bed_type}
{if curr_bed_type=="Textured PEI Plate"}
G29.1 Z{-0.04} ; for Textured PEI Plate
{endif}
This will lower the nozzle by 0.02mm when using the textured bed
- Filament - bed temperature - set to 55°C for both initial layer and other layers for the textured bed
- Filament - part cooling fan - Min fan speed threshold 30%
- Filament - part cooling fan - Max fan speed threshold 70%
- Filament - cooling - no cooling fof the first 3 layers
- Others - g-code output - unchecked reduce infill retraction
- And of course, lots and lots of PVA glue on the bed, and waiting for the water to evaporate (just turn the bed on at 55°C and wait a couple of minutes).
While not a perfect solution, this seems to be working for now, and hopefully it will help someone else with the same issue. As I said, I will report on the effectiveness of the 3rd party textured bed.