cjs

You may be right. Don't remember all the details. Hasn't happened to me for a while until recently. Wanted to report it as it is a bit annoying/unexpected and can hopefully be fixed.

I would like to report a bug, which can be seen occasionally on the Ultimaker 3. I think @kmanstudios and I already reported it when firmware 4 was released. It didn't get much attention because it wasn't seen after reflashing the firmware a couple of times. The bug: After aborting the print with the "abort this print" command the machine makes a blob and does a huge (way to long) retract (up to the error). Attached are all the logfiles as a zip (had to add .log in order to upload it). I hope this helps to locate the bug! Logfiles.zip.log

I do not own this upgrade but in theory automatic calibration should still be working as this setup still provides a hard surface to probe against. After installing this upgrade you may want to change the PID values for the heated bed as this 5mm alu plate behaves different than glass. It's probably also recommended to warm up you build plate 5-10minutes before calibration/printing to minimize errors due to thermal expansion. I wonder why the plate (255mmx229mm) isn't as big as the Ultimaker heated bed (257mmx229mm).

I did the same but as I said before my Cura didn't ship with such settings with Cura 3.2.0. @kmanstudios do you have the Colorfabb option? Maybe they got added with the 3.2.1 release.

Tritt das Problem auch mit deiner Tinkergnome Firmware auf und wirst du den von Daid vorgeschlagenen Fix implementieren ?

My Cura (version 3.2.1) doesn't have such presets

I think you may be able to reduce travel moves and therefore strings by enabling the "Optimize wall printing order" option implemented by @smartavionics.

Thank you @ghostkeeper for explaining/showing it. Am I right to assume/say that this wipe is of no use for an UM3 as the other nozzle is lifted out of the way ?

Just recently I stumbled across this Cura feature called "Wipe Inactive Nozzle on Prime Tower" Thought it sounded quite useful and activated it, but it seems like it doesn't do anything :/ ?!

Thank you @ahoeben it's truly an awesome feature Probably one of the best features being added to cura lately!

It's also quite important to keep flexible filament dry. A simple food dehydrator for a few hours at 60 degrees can work wonders

Hi @OOC, you may want to read/check out this thread: There are basically to ways to print TPU95A on an Ultimaker. a: use a few drops of oil to reduce the friction in the bowden tube and print really slow without retractions b: upgrade your printer with a Bondtech DDG set I was also a bit surprised and disappointed that Ultimaker only sells TPU95A filament but doesn't do any testing for this kind of filament.

Thank you @WesleyE for your response. I really appreciate it! Hopefully this community requested change will make it's way into the firmware soonish

@robinmdh May I ask if the movement across the bed will be addressed with the next firmware update? It's a big problem when you want to print on fabric and it also "damages" print adhesion sheets. BTW: I actually do think the SSH option is a good thing but it's a bit problematic as there is no documentation available. There are a few guides on this forum which aren't always easy to find. A web UI would be terrific! But let's not get off topic

Like @gr5 said crappy looking infill is quite normal with the stock cura profiles as the speeds are way to fast. The walls are normally printed way slower and you shouldn't see any under extrusion in the walls like on your photos. Therefore you may also want to check the feeder. Sometimes filament gets stuck and blocks the movement arm and therefore results in feeding issues. (Guide: https://ultimaker.com/en/resources/50688-clean-the-feeder)

Same here. That's the reason why we are all a bit confused that Ultimaker chose this blob/turd, which seems to regularly not work. As said I think it would be best to implement the prime line in Cura. Different Materials may benefit from different speeds and Cura has all the materials and settings. The UM3 has a small portion of it I believe. Thanks. I think the knock down may be related to a bug in the filament tracking like described here: Maybe. I haven't heard of any other slicer supporting UM3 as it isn't as easy.

After reading all the replies regarding the infill settings are we going to see a change in the Ultimaker stock profiles?

I think the problem, which can be seen in the thread, isn’t the speed in particular. It has to do with the fact that Ultimaker still misses a pressure advance algorithm. The concept was sucesfully introduced around 2011 on makerbots thanks to the sailfish team! Prusa added such an algorithm a few month ago as well to his printers. Maybe Ultimaker will acknowledge it soon or show us the research they did which suggest otherwise.

Well I don't know how the strategy was going to look like, but I don't think other slicers have a problem with a different strategy. In fact the simplify 3d profile I once used for the UM3 didn't use the blob at all. Instead it did a prime line.

There is nor reason for it, but as you might have noticed the Ultimaker team does not seem to be interested in changing it. Did you try to turn the prime blob off and add a brim/skirt. This should work for now even though it might not be desired in some edge case.

The Duet3D board doesn't have the issue! One reason are the newer, more advanced, stepper drivers @nilrog mentioned. Wonder why ultimaker still doesn't set the a4988 to low-current microstepping

Thanks @Marco_TvM. I hope you don't mind me asking a few more questions May it be possible for you to share a xml- file which we can use as a reference edit? Do you mind making the material specification sheet public? ## MaterialProfile # This class can load and return data from material files according to the material profile specification at: # https://docs.google.com/document/d/1BYSACfFfGQ3i_ajf70FWtIkoEtLW30AMFuj3FKzt7iY Do we need a signature_file ? I was trying to fetch a material via guid, but fetching 6a2573e6-c8ee-4c66-8029-3ebb3d5adc5b (Ultimaker TPU) only returned 404. What may have gone wrong? Whats gonna happen to the custom materials after a firmware update? Will they be deleted or stay on the machines? Can we submit materials profiles to Ultimaker to be shipped with the firmware?

You are not alone. Wouldn't say it hurts my eyes, but it's really distracting and makes focusing hard. I think you can turn the glowing on in the machine settings on your printer. Don't know if it gets overridden by cura connect. I really liked the look of the print cluster shown in this post by ultimaker: https://www.instagram.com/p/BbWppS5F7EG/?taken-by=ultimaker Oh man those marketing guys Please lock them in a room with some engineers. I would bet that most engineers would prefer functional colors over brand identity. Most printers in R&D won't get seen by the public anyway. Maybe an option to configure it would be a good compromise. Ship it with the white color from stock and make it configurable. Configurable would probably be best as colors have different meanings in differen't cultures.

But that's exactly the check box, which should lead to the behaviour we all want +1

Great news! Did Ultimaker approach the manufacturers individually or did I miss some company update? I actually think the reasons why manufacturers haven't picked it up is the problem that adding materials to the machine is quite hard. @Daid said a year ago that adding materials to the UM3 is quite a pain. (UM3 material settings)He wanted to fix it, but we haven't heared back. If you know a simple way to add material profiles to the UM3 please share how