AndersK

True but Cura knows if its compatible or not if an Ultimaker machine is selected. Would save a bunch of first timers some failed prints 😉

Would it be possible to get a warning from Cura when ArcWelder is enabled on at least an Ultimaker printer that does not support G2/G3 code? Looked almost the same as when I first tried that plug-in on UM3

Is there any benefit upgrading to 4.10 if not on subsciption?

The latest firmware 5.2.17 should adress this. I have it on my UM3E too and the only workaround has been to set automatic levelling frequency to Always, nothing else has worked, neither manual levelling. Others have said this didnt solve their problems though.

Another thing to check is the fasteners for the stepper motors, if they get loose it can cause this. Had this on my UM3 and I have to tighten them regularly, every time i do this I say to myself I should apply Loctite but then forget it 😄

"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 X67.745 Y157.851 G0 X68.825 Y156.463 G0 X70.118 Y155.273 G0 X71.308 Y154.496 G0 X75.773 Y152.003 G0 X75.762 Y151.903 ;TIME_ELAPSED:128.225230 ;LAYER:2 ;TYPE:WALL-OUTER ;MESH:testram.ipt G1 F1800 X76.597 Y151.873 E0.33348 G1 X76.675 Y151.87 E0.03115 G1 X151.831 Y151.87 E29.99638 G1 X151.908 Y151.872 E0.03074 G1 X152.743 Y151.903 E0.3335 G1 X152.863 Y151.916 E0.04817 End outside layer 3: G1 X74.037 Y152.164 E0.12238 G1 X74.685 Y152.042 E0.26317 G1 X74.892 Y152.002 E0.08415 G1 X75.642 Y151.917 E0.30126 G1 X75.762 Y151.903 E0.04822 G0 F7200 X76.362 Y151.882 G0 X76.364 Y151.982 G0 X71.588 Y154.312 G0 X70.118 Y155.273 G0 X68.825 Y156.463 G0 X67.745 Y157.851 G0 X67.069 Y159.102 G0 X66.282 Y161.038 G0 X66.378 Y161.063 G1 F1800 X66.197 Y161.925 E0.35155 G1 X66.089 Y162.795 E0.3499 G1 X66.053 Y163.658 E0.34474 Same part but arc welder enabled makes the code easier to read to me, knowing what is circular and straight motion. However, I did not save this as a 3mf file and might have moved the model so X and Y positions cant be compared but it seems to do the same: G0 X73.545 Y149.448 ;TIME_ELAPSED:311.739956 ;LAYER:2 ;TYPE:WALL-OUTER ;MESH:testram.ipt G1 F2400 E2 G2 X74.459 Y149.413 I-0.984 J-37.645 E0.36507 F1800 G1 X149.613 Y149.413 E29.99559 G3 X155.535 Y150.994 I-0.044 J12.047 E2.47403 G3 X159.519 Y154.780 I-5.816 J10.109 E2.21415 G3 X161.401 Y160.321 I-9.993 J6.484 E2.36047 G2 X161.436 Y161.236 I37.548 J-0.978 E0.36547 G1 X161.436 Y286.39 E49.95167 G3 X159.855 Y292.312 I-12.047 J-0.044 E2.47410 G3 X156.070 Y296.296 I-10.116 J-5.821 E2.21382 G3 X150.528 Y298.178 I-6.487 J-10.002 E2.36080 G2 X149.613 Y298.213 I0.978 J37.548 E0.36547 G1 X74.459 Y298.213 E29.99559 G3 X68.537 Y296.632 I0.044 J-12.047 E2.47411 G3 X64.553 Y292.847 I5.821 J-10.116 E2.21381 G3 X62.671 Y287.304 I10.001 J-6.486 E2.36112 G2 X62.636 Y286.390 I-37.645 J0.984 E0.36507 G1 X62.636 Y161.236 E49.95167 G3 X64.217 Y155.314 I12.047 J0.044 E2.47403 G3 X68.003 Y151.330 I10.109 J5.816 E2.21414 G3 X73.545 Y149.448 I6.484 J9.992 E2.36080 G0 F7200 X74.145 Y149.426 M120X_PLA_N12_testram.gcode

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)

I have started to try Arc welder but getting some weird 1st layer behaviour. Tried two different model and the result is similar. If you look at the picture you see a strange pattern that is neither in the model nor visible in Cura preview. First try I did was worse than this, broke off what was supposed to be a continuous outer wall. This one I let run and it seem to fill ok.

I have done a fair share of PETG printing (20-30 kg) and has given up on printing on glass, it just sticks to hard. Have changed to printing on PEI instead and that does magic. No need to fiddle with glue or anything to get a good match. Do yourself a favour and get the flexplate system from Build-Tak makes removal so much easier. The PEI sheets have been good with most materials I have used (PETG, PETG+Carbon fibre, PLA, TPU) Mixed results with Nylon+carbon fibre, some good some got loose. Failure might be due to getting lazy not cleaning the PEI after every print since the other materials dont require that. They have a special sheet for nylon but I have not yet bought one. Dont use their standard build sheet together with automatic levelling if you are printing on an Ultimaker. They heat the print cores during levelling and that makes the core dig in and destroy the build sheet. Learned that the hard way.

It looks like if I set levelling frequency to Always it resolve the issue on my machine. I'll do some more tests but if anyone else still have issues and test this, please report back Levelling manually or setting frerquency to Auto fails on every print on core 2

I have an open support case with this problem and I asked the same but answer was theres nothing in the documentation saying 5.2.16 solves this issue.

Working fine now 👍 Was same with the links in marketing emails being sent the past weeks. Good to have a face on Cloakfiend 😉