I have had my TAZ 5 for several weeks now. I seem to have the bed leveled reasonably well, and small prints come out just fine. Whenever I try to do anything bigger than about 3 inches across, or parts with thin sections, they come loose during printing. Items with sharp angles almost always come loose in the corners. I thought that maybe it had something to do with the filament I am using, HIPS from Lulzbot, so I have now tried ABS and PLA, also from Lulzbot, but they come up just the same as the HIPS. I have been cleaning the PEI surface with isopropyl alcohol between printings. I have tried printing parts on different areas of the bed. I have experimented with many different temperatures. But it is always the same.
I understand that building an enclosure might help, but is there perhaps something else I am doing wrong?
Should it be necessary to use some other material like glue or lulzjuice to get prints to stick to PEI?
I do plan to get some sort of enclosure put up, but this case seems extreme. Any advice would be appreciated.