Are you Z-axis bearings tight? Any free-play if you rock the table front to back? Wondering if the weight-shifting of the platform moving could tilt the entire y-axis on the Z-slide. Does that make any sense?

Are you using dense support layers? I like to have at least 3 layers of dense support on top of the sparse support so bridging on the first overhanging layer doesn't fall in between the support ribs. I run upper separation layers at 1. I wish I could go to .5 on parts with thicker layers.

For those who have used PLA for support material on PETG prints, can you use a ZERO gap between dense support and the PETG, and does that give a relatively clean underbelly to the PETG supported build? I don't have a dual extruder so I can't test.

And for folks who are looking for a perfect piece of PEI, https://www.zoro.com/search?q=ULTEM they have lots of sizes and thicknesses, and if you have more than 1 printer, getting a bigger sheet is more cost effective. (of if you have a bigger printer than the M2, or other 12" bed sizes as other so...

If you see it pulling up with the 3M 468 tape, then you didn't get a clean application in the first place. I have applied PEI to my 3 printers and a friend's printer as well, it is solid, nothing pulls it up. It's not lifting, the bond is sound and the application is clean - but there is still some...

I never really understood that theory... If the barrel is round, the nozzle is round(ish) and the block is machined correctly it really shouldn't matter which direction it's mounted. but hey if it fixes the problem... :D I didn't either, but I've experienced it, and sure enough, turning the block b...

I run PEI on MIC6 1/4" aluminum. The aluminum spreads the heat around nicely. I'm thinking about gluing the PEI to the aluminum rather than using the sheet adhesive. Material that tend to warp will pull the PEI sheet along with it - not much - it doesn't break the bond of the adhesive - but I can se...

Back to insulation :mrgreen: start 25.3c - Bare (Mic6 plus .06" PEI) target 100C 80C at 11:10 90C at 14:30 100C at 18:35 In case you're not familiar, foam core is polystyrene foam faced on either side with paper used for mounting or backing artwork like photos or paper stuff. It's about 5mm thick. 2...

The PID auto-tune sounds interesting. Mine is OE V4, but it does over-shoot and bounce around a bit on initial heat up. Might try the auto-tune just to see if it smooths it out a bit - not that it varies enough to be an issue, but just for fun. Haven't messed with a PID tuning for a long time.

I have a lot of foam core board about. I'll cut out an 8x10 piece and see what kind of difference that makes - unless someone beats me to it.