Using a lulzbot6 and just replaced the printer bed with a new glass bed. Now my prints are curling from the ends of the bed. Any ideas about what or how to set the z offset would be helpful—tks in advance
Generally speaking Z-offset is sort of a trial and error thing that can vary from printer-to-printer(toolhead-to-toolhead).
Common/Best practice is using a piece of paper to slip under a (cool)nozzle, and adjusting until there’s just a slight drag on the paper.
Keep in mind some filaments like more squish/slightly tighter z-offsets than others, while some like PETG do better with a hair less.
If you are having curling at the edges of prints(adhesion issues), chances are you could be having issues with bed or filament temps rather than z-offset, and depending on the print, implementing a brim in your slicer could also be called for.
Did you clean the new bed?
What material?
Are you using default profiles?
What does your first layer look like now? (Pictures are a big help)