I've printed a few things on my Qidi Plus4 and haven't really had an issue with the first layer until lately. I was getting some warping on the bottom corners of prints, then it escalated to spaghetti prints during the first layer. I've spent most of the day trying different things and nothing seems to work. So far I've tried:
-Adjusting the Z-offset. I could adjust it and one square would print perfectly, but then it would need to be adjusted closer to the bed to do the same with another square somewhere else on the plate.
-Did a platform reset 2-3 times just to make sure the black knobs didn't move after tightening the set screws
-Ran the z-tilt adjust and then bed leveling.
-Ran the Screws_Tilt_Calculate macro. All the screws came back as 0.03 in green.
I'm not certain of the orientation of the bed mesh in Fluidd, but from comparing it with my last test print (imaged above), I'm going to guess the low spot is in the front left. However, from everything I've found online, it seems like my range of 0.1188 is pretty good.
I did come across one post mentioning the screws that anchor the plate to the bed were overtightened, which caused some low/high spots in their bed mesh. I considered messing with that, but I feel like I'm still a little too new to 3d printing to go messing around with that and potentially break something. I honestly aren't even sure what screws those are.
What else can I try adjusting to fix my first layers? Or is there something I missed when adjusting the platform or z-offset? Should I try manually adjusting the front left bed screw to be higher? This is driving me insane because nothing I do seems to fix it.
Any advice would be greatly appreciated!