T0pher

After contacting support we discovered the problem was actually with the axes being unaligned. When looking down on top of the printer the Y axe was slightly at an angle. After adjusting it is now hitting the lift switch as it should. I'll include the link to the instructions they sent me. https://ultimakernasupport.zendesk.com/hc/en-us/articles/115004168943-Aligning-the-Axes

Upon starting a print once active leveling is complete it gives the Lift Switch Error. I am not even able to start a print.

I have removed both cores, and reinserted them to be sure. The nozzle does move up and down by hand. It basically just seems like it doesn't save the calibration. During calibration it works fine, but as soon as I start a print it moved over to flip the switch and misses.

I am having trouble with a Lift switch error on the Ultimaker S5. It is currently up to date on the most current firmware which is 8.1.1. Basically any time I do the lift switch calibration it looks as if it works. But as soon as I start a print and the print head moves over to flip the switch it misses just barely. I've already power cycled the machine, and as I stated I updated the firmware to the most current version. I also made sure that the belts were tight and not loose. Does anyone have any ideas to what could be causing this? I will include 2 short video clips so you can see what is happening. The lift switch video is how it looks when I calibrate and it. In the print start video you can see what the problem is when it moves to flip the switch. https://www.dropbox.com/s/lhfx048i62vh0lh/Calibration.MOV?dl=0 Lift switch calibration https://www.dropbox.com/s/hn89orvareilp5l/Print Start.MOV?dl=0 Print Start

I was able to fix it. I had to hold the back of the white frame (circled in red) that the plate is attached to and pull up on the metal part of the bed. Sure enough the metal clips (circled in purple) were caught under the back of the frame. After popping them up I was able to push them back down. So my guess is someone did push too hard on the back which made the corners get stuck and make the plate look as if it was warped. There may be another underlying issue as to why this was even possible, and regardless the metal clips in the back probably will have to be replaced eventually. But at least for the moment the glass plate is able to lay flat again.

From what I can see between the plates it all looks fairly normal. I'll include pictures although I don't know if you all will be able to see much. It definitely has not always been like this. As I mentioned earlier, I was actually using the printer yesterday and it was not like this. I work at a public library and we have a few Ultimakers that are useable by the public after they receive training. That's why my guess is someone pushed too hard on the plate and somehow the corners popped down. In addition to this S5 we own an S3, 3 Extended, and 2+. I've never seen an issue like this on any of our other printers. Then again none of the other models I listed have their clips pushed back against the frame like the S5 they are difficult to get to compared to the other models. I might have to reach out to Ultimaker.

It's almost as if the clips themselves or the corner of the plate was pushed too far down and popped underneath that back part of the white frame. Squeezing the clips was simple enough but I'm hesitant to pull to hard on the clips to try and pull them back above the frame, if that is actually what happened. It seems like its easy for those clips to pop down in the corners causing the bed to appear as if it's warped. It wasn't like this yesterday so my guess is someone pushed too hard on the back corners causing this to happen. Here are some pictures that are closer. When putting the glass plate back on it is very tight and you can see there is a gap in the back on both corners between the plate and glass, because of this I assume any future prints won't stick as well because the glass isn't flush against the metal plate.

Today we noticed on our Ultimaker S5 that the metal heat bed plate isn't flat. It's as if the back 2 metal clips were pushed down, but they aren't able to be popped back up easily. Is there a way to lift these clamps back up to make the metal plate flat again?