Dear printers and Polylactide addicts,
let me please warn you, not to use the Bambulab HighTemp Plate on the A1.
Do not missunderstand me, it works fine, but the specific construction of the heatbed - with the embedded magnets, is going to destroy the engineering plate side. This als should happend with 3rd Party “special pattern” Build plates, but i can not confirm this yet.
WTH! I bought one exactly a week ago… 
did you select you were using the high temp plate in the slicer not the pei textured? and then did you level the bed with the high temp plate installed
they work fine. just use it correctly. only the smooth PEI plate dose not work with the A1
i leveled the bed over the config menu on the printer.
50% of what i bought does not work, gets damaged,let me be honest i dont think this is fine
i think you are not putting the correct beds in the slicer before you print and you may also by the looks of it not have the bed indexed correctly
Apologies, but in the photos shared by @FDM_DDX I don’t see that the issue being experienced is due to bed leveling or a software problem. The marks left by the magnets are clearly visible. It’s as if they are too strong for the plate, to the extent that they prematurely wear out the PEI coating.
They look like they have been forced into them. ived used this same plate many time. including right now on a current print with 0 issues. I’ve seen this problem happen though from people not selecting the correct build plate
How can a bad plate selection in the slicer damage the plate?
z height. it drags on the bed and puts more or less pressure on it. there is a reason you select the build plate you are using
to be more precise:
i startet the bed leveling over the Printer Touchpad, with the high temp plate installed. Later, when i sliced, and printet, of course the high temp plate was selected.
in the case you described, i should see major damage to the surface?
in the picture you can see the bright spots, where the nozzle touched the surface, but you cant even feel them. This could not cause such a damage on the upper side.
is there even an build plate dependent Z offset correction in the gcode? i dont know yet.
i did it to one of my build plates once and it looked like this. regardless if it was or not the high temp plate is fine for the A1 there is another issue that is causing the problem
I’m assuming that you have the BBL A1, is that correct? Because this printer comes with new magnets that are more powerful than XY-core bed magnets.
Yes I have the A1 along with the P1S X1C and 15 other bambu printers. I’m no expert but I have a lot of experience with the printers. A1 less then the others TBF
I agree that’s the cause was not what i thought, I thought this was the top of the plate and you had just flipped it for a print. misalignment could do it but I’ve not seen that much damage from misalignment
to me it looks as though the magnets are sticking out of the plate, they should be flush or slightly lower IMO.
Got the same (little bit lighter) issue with mine High Temperature plate on A1. Magnets melted the bottom surface (engineering plate) while I was printing on High Temperature Plate with eSun’s eABS+ @100 C.
I was surprised as both sides indicate that are usable for ABS printing. Bambu’s HTP product page is very confusing for me.
So, is the product bad (or bad batch) or I’m using it wrong?
It seems like the A1 needs that “buffer pad” that the P/X series beds have. That should stop the wear between the magnets and the plate. (Edit - Ignore the red rectangles - Picture from wiki)
listed down side
Can be more fragile compared to the Engineering Plate or Textured PEI Plate
Yes, the High Temp Side is a Sticker, but the Engeneering Plate not… and this is the damaged side. i have a few, toys in que to print, after that, i have figured out some tests…
@JonRaymond , this is also my guess…so i ordered one…
