Been printing in PETG recently and this material is a sticky mess! But I’m making COVID visors and this is the recommended material. Please help me get my machine working again so I can continue to help.
My nozzle is crashing into the print bed at the start of every print. It calibrates OK without this crashing behaviour. The printbed has been damaged by the impact.
I went through the checks on this page https://support.zortrax.com/troubleshooting-perforated-plate/ and got an unexpected result at step 9 “check the resistance between the nozzle and the thermocouple’s signal cable”. I tried two different nozzles, neither returned the expected resistance. The problem started when I put in a brand new nozzle so I don’t think the solution is to replace the nozzle.
I have two questions.
This is what the hotend looks like - do you think the burned-on plastic might be causing the problem?
The printbed is now damaged - the nozzle has gouged out some material here:
Can this still work despite the damage?