Reply to "3-D printed products - any negatives ???"

cta4391OGR Forum Member

@C&O Allan posted:
Yup - it is due to the heating surface not being uniform. Because the edges are cooler, the ABS "sets" faster than in the middle, so it bows up. The smaller parts (and even the house) worked fine as they were 1-2 inches in from the edge on each side.
Also, I did not put in supports, so that is why the filament is not connected at the top (I did not think to add them). I just ended up cutting them off.

Maybe a PEI Sheet will help with that. I used to have adhesion issues with PETG and ABS but once I put PEI on top of my glass bed the problem went away, though sometimes I’ll do a quick swipe with a glue stick just to be safe.

7/24/217:00 PM

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