AndersK

"Not compatible" has a very strong meaning, two or more things that simply doesnt work together at all. I would use a different statement in official communications like "this material currently does not have an official profile for UM3 but is under development.

I know it can, probably gone thru 30kg of PETG in my UM3 Question is simply what is not compatible?

What do you guys mean with "not compatible"? I think you're confusing some people to think petg can't be printed on an UM3 at all.

Yes it will, no problems at all but I reccomend you print on PEI sheet, and on a flex plate, or order lots of spare glassplates. The adhesion of PETG is so strong it easily chips glass when cooling down. What Ultimaker is announcing is ready optimised profiles for their PETG, you simply have to make your own for your printer.

Looking at second picture and third layer (Z1,9) it seem to start at X75,762 and end at the same if I read the file correct. Gap is in the X-axis I assume the last G0 movement is wiping the outer wall Start outside layer3: G0 F600 X152.136 Y300.658 Z1.9 G0 F7200 X152.134 Y300.558 G0 X75.692 Y299.462 G0 X74.042 Y299.184 G0 X72.379 Y298.613 G0 X70.834 Y297.777 G0 X69.446 Y296.698 G0 X68.256 Y295.405 G0 X67.295 Y293.934 G0 X66.59 Y292.324 G0 X66.159 Y290.629 G0 X66.014 Y288.882 G0 X66.05 Y162.783 G0 X66.339 Y161.058 G0 X66.909 Y159.396 G0 X67.74

Material flow stops close to layer end and I cant find settings in Cura that might do this. Looks like excessive coasting but that is not enabled. Width are roughly 4-5 mm Smart Z-seam hiding is enabled so I get this at mixed locations, both inner and outer wall Any hints?

I have an issue with my UM3, test to set bed levelling frequency to "Always" thats the only way I can get mine to work. Others having similar issues say it wont matter for them though.

Two things with thermistors 1. Use ridiculiously low torqe when locking them with the grub screw. 2. Secure the wires like in this picture. They break in no time at all if they can swing.

Welcome to the forum There is a lot of settings regarding the support, in this case I altered the X/Y min distance to exaggerate the result. Reducing it brings it closer but can also be more difficult to remove later

I've done some Nylon with carbon fibre with standard 0,4mm nozzle and that came out with a superb finnish. Parts were pressurised to 5 MPa and connected to a solenoid that reached about 100°C so I wouldnt say material properties were compromised by nozzle size. Didi it first in PETG with carbon fibre but it got too soft after a while and deformed under pressure so I know material properties was under strain in that application. Maybe glass fibre is different, never tried that

First, make sure the filament is dry. PLA isnt that sensitive but if the material has been laying open a longer time it helps to dry it. If you have an enclosure you can just heat the bed to 60°C and leave the roll on it a coupple of hours. As dmyth said, small parts can suffer from insufficient cooling if layer print time is short. If you already run the fans at 100% try to print a few more of your model at the same time. That will allow them to cool down better. There are parameters in Cura that can control layer time as well but that is beyond my experience.

It looks like you have a clogged nozzle, do a hot & cold pull to clear it. You'll find it under maintenance menu if I remember correct.

Was looking up and down in Cura today for this, then reverted to forum and found this. Tried and works perfectly 👍 Thanks for your effort, appreciated

TPU isnt the easiest material to print so dont give up To add to the other good advices you can also experiment with Z-seam settings . It wont remove the blobs completely but can spread them to avoid building antennas

Try this setting to get your model sit flat on the ground plane: This is also a nice plugin I recommend, if you havent already installed it, written by Nallath. It will calculate best orientation for the model and orient it for you (you can change orientation manually anyway you want still)