rhoogenboom

Yikes I'm not entirely sure if I'm comfortable loosening screws on a 5 days old machine. Way too many things I could screw up. I got a exchange in 14 days policy on the machine, I rather think they techie in the shop can sort that out and just get me one which is sorted. After 3 years doing that, I'm fine (or if it had only costed like 1% of the current price) :-) Thanks!

Yes, I had that too, the second time it is succesful, even without any wiping or so. But the problem is with when it automatically decides to auto level. I cannot use that feature as it basically means at a certain point the printer will auto level, fail and I have to go down to flights of step to acknoledge with a press on the front button. Better to completely disable the auto leveling then. I got a pointer to this message, will give that a try, even though I've been there and almost completely tightened the screws and tried. Maybe I tightened them too much. https://ultimaker.com/en/community/35700-auto-level-failure Cheers, Richard

I'm going to give it a try tomorrow. I tried it before, tightening the screws almost completely. When i did that, I did an manual level and after that an auto level, the bed didn't even come close to the nozzles. I see if I can slowly untighten the screws so it comes higher. Hope this will work. Thanks!

Hi Wisar, Is the auto leveling now always working for you? I just has my printer 4 days. Did a firmware upgrade on the setup. I'm on 3.5.3.20161221 version. I set it up to auto level before each print (really it takes a couple of minutes, less than 1% on some of my 18 hours prints) but it just keeps failing on the first auto level, every time. It was so bad that I basically cannot sent a job over the network, as the printer would fail the leveling and the job would be completed without printing. So I just disabled it for now. I manually leveled the bed at least 10 times now. I tried with the worm wheels in the lowest position, middle and upper. In non of the situations, auto leveling will complete successfully afterwards. Which firmware are you running? Can anyone comment on the real need for auto leveling. @Ultiarjan: did you just level it manually and redo it when needed? Regards, Richard

Hello Wolverine, I'm sorry my French is not good enough that I can write in it, so I will have to do it in English. I think you have the same problem that I have. The Auto Levelling keeps giving me the message: Difference between detected height of both printcores exceeds realistic values. I have done the manual bed levelling now at least 10 times. It does not help, the printer keeps saying it. Can you find out which version of the firmware you are running on the printer. On the printer menu, you have to go to MAINTENANCE -> About this printer or something. I am running firmware version: 3.5.3.20161221 I have a feeling this is something software related as I have done the manual levelling now so many times, it has to be right.

Hi, I just received my new UM3 this week and I noticed when the print head moved left to right, one of the rear belts is a bit loose. Very loose compared to all the other belts on the machine. This is the belt to the back of the machine, not the one in the front. You can even see when the print head is on the right, that there is an imprint/form in the belt of the right wheel (exactly there where the wheel is when the head is in rest in the left rear corner) Can some comment with an UM3 if their belt is equally loose at that location. Please see pics for details.