I have inherited a Lulzbot TAZ and the last thing printed on it was NinjiFlex. I was told they properly prepared the printer bed with the glue stick that came with the printer.
I was told by the former teacher that to clean the print bed use isopropyl alcohol. This doesn’t really seem to remove all the residue. They printed bracelets and you can still see the outline of them and feel “gunk” on the print bed.
Also below the print bed, between the heating element and the clear top, where one doesn’t have access too, there is splotchy yellowish stuff. Is this normal? Its nothing that can be access, but it seems very odd.
Any guidance would be greatly appreciated.