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HansESI

Auto bed level failing

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Posted · Auto bed level failing

I'm having an issue with the bed level and nozzle offset checks when starting a print.   Printer had been working fine up until yesterday.  

 

Essentially the printer attempts to do a level check at the start of the print, but the bed is now starting that check about 3/4" from the nozzle.  It will either give me an error that the bed leveling failed, or that the nozzle offset is outside the expected range.    Where the nozzle used to touch the bed during the check, it now stops with about a 1/4" or more gap between the nozzle and bed. 

 

I've tried manually leveling the bed before printing, and also updated to the latest firmware, but without success.

 

Considering doing a full factory reset on the printer,  but would also welcome any other areas to check.   

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Posted · Auto bed level failing

Hi,

 

first, it would be good to know which printer you have.

 

There are some posts relating to auto leveling problems with the UM3, but they may also be valid for the S5, for example:

 

 

or

 

 

So, checking the cables of the capacitive sensor would be a good first step. I also heard that fan cables running across the capacitive sensor or pinched cables can cause trouble, so its worth checking.

 

Regards

 

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Posted · Auto bed level failing

Shoot, I completely forgot that bit of info.   This is for the Ultimaker S3.

 

I have not adjusted the buildplate scews at all from the factory, but I did measure to make sure it is still at the 14mm gap. 

 

I also did check for disconnected wires at the sensor board inside the print head,  but haven't checked with a meter because I don't know enough about the sensor to know what I should be looking for.  

 

I think I'll try resetting the cable into the print head and check the continuity to the sensor while I have everything opened up.

 

 

 

 

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Posted · Auto bed level failing

Okay so I heard about this specific problem where it checks well above the glass.  The answer was to do some kind of reset but forget which - I think it was "reset to factory settings".  Does that option even exist?  Also try "cura connect reset" which is much less invasive (doesn't throw away calibration stuff) but it does fix quite a few problems.

 

I think it was "reset to factory" and note that afterwards I think you have to recalibrate the core-change switch.

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Posted · Auto bed level failing

The 'Factory Reset' setting in the touchscreen menus seems to have done the trick thankfully.  First try the machine auto-leveled properly.

 

I'l come back and say if the problem comes back, but for now I'll assume it was a successful resolution.

 

Thank you for the help

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Posted · Auto bed level failing

Unfortunately,  I don't consider this solved any longer.    I'm finding myself having to do the factory reset every couple of prints, due to the problem resurfacing.  Same thing every time where the print bed doesn't rise up enough and I get an error during the level check.   I'm hoping the next firmware update will shake it loose and stop this from happening, as it is getting a big frustrating.

 

So far I cannot find any common theme of what's happening to possibly cause this but it's happening a frustrating amount of time. 

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Posted · Auto bed level failing

Hi I am having exactly the same problem with my S5.

 

Until I can get an answer to what is happening from Ultimaker, I have to switch the printer off and on again every time i want to start the next print.

 

The ondy difference between it working or not working is that I switched it off and on again so does not appear to be a cable or electrical interference issue.

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Posted · Auto bed level failing

I wish I had a solution to this.  Some days it'll go a half dozen prints without issue.  Then there are days like today.  Printed first try this morning, and hasn't successfully printed since then.

 

The room I have the printer in doesn't have any other powered electrical devices turned on.  Not even the lights.   Going to try again with the network cable disconnected. 

 

Ultimaker wanted a video, and I wasn't able to get one for them until today.   I either didn't have time to work on the printer, or it was actually printing ok for a while.

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Posted · Auto bed level failing

Hi

I contacted the Ultimaker help desk, they suggested I update to the latest firmware.

Since doing so I've printed about 60 parts without further problem.

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Posted · Auto bed level failing

That was one of the first things I've checked, and it is running 5.3.10, which is the most current version right now. 

 

-Hans

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Posted · Auto bed level failing

Ok, I can move this back to 'solved' again, after working with Ulimaker support.

 

They sent me a new print head circuit board,  not the sensor, but the board on the back of the head that controls the head.   Haven't had a single instance of failed leveling since then and have probably run 20 print jobs through it.  My satisfaction level is definitely improved now that it's running reliably.

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