Nah… It’s easy… My previous mk3s+ had hundreds of awwsome PETG hours.

🙏🏻

Can I assume from your response that you have a mk4 or mk4s with this issue then?

Thanks…It’s a good point. I’ve updated the post photo, and I’ll add the worse failure mode elsewhere.

If you wanted to customise the starting gcode, I’m sure you could.

A typical output with PLA.with Zoffset = 0

I can get adequate results with Zoffset or LiveZ +0.04 with smooth sheet and PLA.

PETG is still variable results for same settings, z+0.01 is ok some of the time, others it is still terrible, and still sees filament build up, so if printing real things, it eventually blobs, and has a (bedArea - printArea) chance of then causing a collision.

+0.02 means no bed adhesion, and I can’t actually get a finished first layer.

This is one of the worse failure modes I have experienced for this issue. In this instance, the extreme amount of “squish” leads to extreme filament buildup on the nozzle, eventually causing colisions and removing chunks of the FL test.

Yes, but it occurs with both PLA and PETG.