S3D website has explanations of all of their settings. its very well written and supported.
so with the curling.
thats a huge piece. its going to curl, unless you take precautions.
1. The stock acrylic bed (no offense gcreate) is not flat. mine was quite honestly terrible. however the heated bed glass is amazing. im not saying you have to upgrade (if you didnt buy a heated bed), but it could be a reason.
2. that part with its holes etc is MADE for warping. That part will warp in 99% of situations. You could put a dab of superglue on that corner after a couple layers have printed. or use glue stick, and try to fight the peel forces.
3. Build surface. For the longest time i used (and still do) PEI. its a miracle . I am now using (and still testing) printinz. All indications are ABS (which in a huge open frame like gmax) is nearly impossible to stick. Ive printed multiple parts with ZERO, and im being serious, ZERO warping or cracking. Im stunned.
but you could get a build surface like pei, buildtak, printinz etc. which is a help
more on that later )
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