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Bubbling / warped sprung steel sheet  

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Neil
 Neil
(@neil-2)
Active Member
Bubbling / warped sprung steel sheet

I've done a few calibration prints up until today and even printed a prototype of something I've been eager to get "production ready" to ensure my measurements were all ok. Everything checks out so I printed my first proper part. Print took 2 hours to complete, then I left it to cooldown and popped it off the sheet as the instructions say to.

Now the steel sheet has a little bubble which looks like it goes around the perimeter of the square shape I printed.

The part was printed on a standard PETG profile with prusament PETG jet black. Can't imagine anything I could have done here would have been the cause.
Is this a faulty sheet or has something else happened?

Best Answer by Ringarn67:

@neil-2

PETG sticks very (too) well on PEI sheet, you need some kind of release agent before you start to print.
I use glue when I print PETG or ABS on PEI sheet, I know others use other things

Posted : 02/11/2021 6:27 pm
Ringarn67
(@ringarn67)
Reputable Member
RE: Bubbling / warped sprung steel sheet

@neil-2

PETG sticks very (too) well on PEI sheet, you need some kind of release agent before you start to print.
I use glue when I print PETG or ABS on PEI sheet, I know others use other things

Prusa i3 MK3S+ FW 3.11.0 (kit dec -20), PrusaSlicer 2.6.1+win64, Fusion 360, Windows 10

Posted : 02/11/2021 7:45 pm
Neil
 Neil
(@neil-2)
Active Member
Topic starter answered:
.

Thanks for the reply. So much to learn with this new hobby. Slightly frustrated with myself that I didn't pick up on the info that's clearly out there about PETG.

Not the cheapest mistake to make but it is done now....

 

Posted : 02/11/2021 9:21 pm
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