CarloK

@sisu v5.2.16 works great, so there is no immediate reason to upgrade. Most important changes are improvements to the Digital Factory and some bug fixes in Active Leveling. As you noticed, the warning in the 5-th last line of your log is weird. It does ring a bell, but 5.2.16 is more than 2 years ago and I can't find the change in our code base. I suspect a problem with the update-bootloader program in your printer. You can also install the 5.2.18 version using the recovery method by inserting a micro-sd in the bottom of the printer. Check this guide for more info:

The link to the recovery image for 5.2.18: https://software.ultimaker.com/releases/firmware/9066/stable/5.2.18.20210820/um-restore-5.2.18.20210820.img

Yes, weird indeed. The 'wrong' image can't be your problem here. What version did your Recovery image have?

@mahtt Congartulations on finding the Ultibot. 😉 Sorry to hear about your display problems, this was exactly one of the things we tried to fix in this release so I'm very surprised to see it popping up when it didn't happen before. Also weird that you mention a downgrade is impossible. We tried downgrading here internally several times and I left 5.2.16 for this purpose on the Testing channel. The only thing that comes to mind, is that you updated your printer just after our initial release. There was a short time frame where a wrong download image was hosted. Could you try to download 5.2.18 again from https://support.ultimaker.com/hc/en-us/articles/360011587199 Copy this to a usb stick and re-install. I'm eager to hear your test results.

@V3DPrinting You are right. My printer is modified and I tend to forget it's an unofficial feature. @Enigma_M4 Yes, it's possible and works great on my UM3 but not officially and requires a small change to the printer's software configuration. You could even experiment with 1 feeder first before spending the money on the 2nd feeder. When desired I can create a new topic explaining this in more detail.

A physical limitation to the UM3. The left nozzle can print all the way to the left edge, the right nozzle can print all the way to the right edge. The decrease you see on the right part is the distance between both nozzles, I think about 15mm. Perhaps you can modify your model so it prints the right part with the right nozzle? To remove this limitation the housing for the S3/S5 printers was made wider so the printhead can move the extra distance.

@V3DPrinting I already replied your same question in another thread. Summary: no, this value wasn't changed in the 5.2 versions. The last change is from April 2016 when it was reduced from 750mm to 700mm, that's the correct value for the unmodified printers.

@V3DPrinting The um3.json wasn't touched in the recent updates and this value in particular hasn't changed since April 2016. Then it was reduced from 750mm to 700mm, so your memory is not totally wrong. The S-line recently got the feature to use the flow-sensor in the loading procedure. I'll add this to my wish list to back-port to the UM3. No promises however about if and when.

@rdym Are you using the 'pause at height" feature in Cura to initiate your material change? If yes, then Cura 4.11 (now in beta) contains a fix for that plugin. Initiating a pause in the first 15mm of a print would push the printhead 1 mm in the object on resume. This bug was already fixed when using the layer count as a trigger, but was overlooked for triggering on print height.

Another of my favourite improvements for the Ultimaker printers is to extend the camera angle by adding a mirror to the opposite wall. The cheap IKEA mirror works great.

@AlfonsoCB This is a 3 years old thread with some updates till more than a year ago. When you find such an old and dead topic, then it's best to start a new thread. Why did you post the log files? What is your exact problem? What printer model and firmware version are you running? The log files you posted are incomplete, this is only half the number of files saved and are only the capacitive logging files. If we were going to do anything with the log files, than those missing files are the most important ones.

The API supports up to 10 camera's. For the requirements: plug it in the front usb, and if it works then you are good. I don't think there are free USB ports inside, this also might differ on the S5 variant you have (v1 has the robot logo, v2 has the 'U' shape logo on the sides). The usb supports a hub, you might even move this inside the housing. Then, recently I learned about this brilliant low tech alternative: stick a mirror to the wall opposite the camera. An IKEA mirror seems to work great. 😎

Which Bondtech instruction tells you to swap wires on a cable? Can you post a link to your document? The document linked by @tinkergnome mentions that the kit comes with new cables, one for the left and another for the right extruder. Did you get two cables? If yes, then perhaps you swapped the cables.

A misaligned axis that corrects itself again sounds like a problem with one or more pulleys being loose. I agree with @Smithy that your printer is to get some TLC. Most likely this article will help you out: https://support.ultimaker.com/hc/en-us/articles/360011490220-Check-for-play-on-the-axles-of-the-Ultimaker-3 Maintaining the Ultimaker printers is simple, but you have to do it once in a while or print quality will degrade. https://support.ultimaker.com/hc/en-us/articles/360011597119-Ultimaker-3-maintenance-schedule

The v5.2.18 hotfix is available for download. For changes, see my post 4 messages up in this thread.

@Ivan881 I agree with @gr5. Retry a few times and if it still fails to boot, then contact your reseller. This will help us to get statistics on the types and numbers of problems. Your reseller most likely will help you to follow the recovery procedure. This incorporates opening the bottom cover and installing a mini SD card with recovery software. This procedure is also described here on the forum.

Here one of the firmware developers: You mention python 3.4, from this I assume your printer is an UM3? The S3 and S5 printers updated last year to a new Linux version with python 3.6 1) Updating python is possible, but like @nallath said there is a lot of risk. I'd expect you have to update several of the related packages like Flask, etc. It will be a lot of work. Perhaps for a first try it would be easier to stick with python 3.4 and install older versions of the packages you want to use. When you have those older version working and time left, then you can always decide to upgrade. 2) installing extra packages like pykafka is possible. The only problem we sometimes run into is a short of memory 3) SerialDumpFormatter is not how we do the actual communication but is a part of the code for dumping the raw communication data to files. You could do your thing here if you want to, just check the option switch that's there somewhere. By default we are not dumping the raw data.

@CCLMakerSpace Thanks for posting the version info. This is a recent version. We are looking into this. Could you perhaps sent me the log files in a private message (click my avatar and then 'message' at top of the screen).

@SandervG This behaviour is new to me, but I'm not a specialist on the S-line printers. I'll inform the right development team. @CCLMakerSpace We continuously improve the software on our printers. What is the version of the firmware on your printer?

The UM2(+) firmware is open source. Best place is to make the change there; simpler to change than writing a Cura plugin and also more effective. Building the software isn't difficult, it's just an Arduino project. https://github.com/Ultimaker/UM2.1-Firmware Create a pull request with your modifications and I can add it to this repository.

@lavi I asked around and there are two ways for connecting your printer to Cura: You can use the printer over your local LAN connection, previously known as Cura Connect and then the camera view in Cura does work. When you activate the global internet monitoring, known as Digital Factory, then the camera view in Cura doesn't work (yet). You can click on the link button which opens the web page, and there you can monitor the camera from all over the world. This is one of those things that sounds like a simple feature but is difficult to implement and for now other work gets priority over fixing this.

Good news: a hotfix release for the UM3 is under test and we expect to release this in a about a week. V5.2.18 will fix 2 bugs: Fixed missing Chinese font. Selecting the Chinese language resulted in mostly empty screens. Fixed update failing while showing vertical lines. This was caused by a new firmware compatibility check failing. The check is not required for the UM3 and removed. When you want to participate in beta testing, then send me a private message through this forum (click my avatar and select 'message' in top of the screen).

@TheoM Thanks for the info that you experience this problem with the standard UM3 model. This means the problem was reported on both normal size UM3 and Extended UM3 printers. Weird and frustrating is that we can't reproduce the problem on our testing printers which makes it difficult to fix this problem.

@2021coyneo Firmware v5.2.17 for the UM3 is out now and has support for the webcam !

I discovered what the weird lines are, it is an error message, but the graphical image was created for the display of an S5 printer and fails in this weird way on the UM3. In 5.2.17 the update routines were replaced by a newer version backported from the S-line printers. The error screen was not converted to the UM3 screen, we'll fix this in a next release (coming very soon). One of the new features is that we now check for the printer that you install the software on is allowed to run this software. That's why higher up in this thread someone got the screen with lines when installing v6.2.2 for the S5 on his UM3. Nothing breaks, after power cycling the printer you will still be on your previous firmware version. We are looking into why some UM3 Extended owners experience these problems.