Ultimaker 3 Extended sensor connectors non exist

[Ceasar84 0]

Recently I found that we do not have connector for capacitive sensor. 

 

History:

3D printer worked before 2 years and we did not used it since then. When we started printer again it wanted to update software and we do that. After that we could not level bad either with auto level or with manual level. Blaming update I wanted to return to previous version so I used microSD to return to factory settings etc. 

Still problem persists. Filament does not want go out during print, maybe because bad is to close for print to start etc. Filament go through during cleaning process but no during test print.  

 

NOW:

3D printer is having issues with running auto level, also print do not even start (print head is moving and simulating printing process but filament does not go out). Latest I found that I do not have connector for capacitive sensor so that explains to me why auto level is failing. I am curious to learn if its possible to manually level if my printer do not have connector, because I did not manage to do it. What bothers me is that 3D printer worked before just fine but started to fail recently. We are not sure that we had that connector previously.

 

Any ideas on what should I do?

 

Thank you for reading this post.

[gr5 2,178]

wow!

 

I don't use auto level on my UM3.  If I don't change cores it will hold perfect level for months.

 

It takes me all of 30 seconds to do a manual level now (yes, both cores) but even for a beginner it shouldn't take more than 3 minutes.  The first part with the "1mm above" I just skip over those 3 points.  Those are just to protect the nozzle hitting something.  The only time I do that is when I've taken the bed apart and put it back together (once every few years I do that one one printer and I have 5 active printers).

 

Anyway here's my point:  after you do manual leveling and it's printing the first layer, if it's not printing, push down on the glass with your finger.  If it suddenly starts extruding then you levelled too close but you don't need to manual level - just turn the 3 screws tighter on the fly.

 

If it's still not printing, try pushing the bed up into the nozzle as well (just try it - sometimes it's too far and won't print well as the filament sticks to the nozzle instead of the bed).

[Ceasar84 0]

Thank you.

 

I do not want to use auto level as well if I do not need to.

 

When I tried to push little bad downwards to make some room for filament to extrude out it just do not want to go out at all. Like it is stuck in the nozzle, but when I try to change filaments the nozzle do not look stack and it extrudes. 

 

First image was cropped from video to show you distance that I created during print so it can extrude filament but it did not do it. 

 

Second image is to show what the nozzle done to the paper, that we have on top of bed, after few prints. It leaved marks all over the the bed.

 

Last image is showing filament condition when I pull it out of the feeder 1. So as you can see the wheel clenches too much the filament and it leaves mark. 

 

Rest of the sent images are showing condition of the the nozzle and the printing head, etc.

 

I tried manual leveling at least 20 times and I got always the same result. The nozzle is  to close to the bed, so that the filament is not able to be extruded. But when I tried to push bed with hand to make room for filament it still do not extrudes out.

 

I also tried cold and hot pull to clean the nozzle and it went well. I think the nozzle is fine. But I am not 100% sure in that either. 

 

I am not sure where problem is and I am trying different solutions for few days now.

 

 

 

 

 

 

 

 

[gr5 2,178]

cut 2cm or an inch of filament off the end so that "bad spot" isn't inside the feeder while you are trying to print.

 

If the paper is tearing then you are definitely leveling too low (too close to the bed).  Are you using the calibration card?  If the paper is torn on any of the 3 leveling spots then you have to replace it.  The card needs to be between the paper and the nozzle.

 

If you lost the calibration card you can just use normal printer paper.  Level until you have just a little resistance that you can feel as you slide the paper around.  

 

I'll link you to a video demonstrating  - this link should start you at 4:49 where I demonstrate leveling.  It's for UM2 but it's the same for UM3 except there is an extra step for right core at the end.

 

What material are you printing?  PLA doesn't need adhesion sheets.

[Ceasar84 0]

Thank you.

 

I manage to make it start printing processes again. I am not 100% sure what I did different but I assume I manage to do manual leveling fine.

 

I am using PLA and without adhesion sheet I have issues to make first printing lines stuck on bad.  You can see on long print issues on top. If you have any suggestions regarding speed or temperature on first layers so filament stuck on bad I will be more then happy to try those settings with my PLA that I have.

 

Also I noticed because filament is not stuck on bad nicely when nozzle is moving over that first line it moves that line and creates havoc. Temperature on building plate is 60 degree.

 

My settings in Cura 4.8.0 software.

https://pasteboard.co/JSSU7K0.jpg

https://pasteboard.co/JSSUn1e.jpg

https://pasteboard.co/JSSUy1h.jpg

 

 

 

 

 

 

 

 

 

Edited March 16, 2021 by Ceasar84

[JohnInOttawa 104]

Just a thought here.  Since you mentioned both Ultimaker 3 extended AND firmware update, I thought you might find the following threads helpful.  I tried everything with both 5.xx firmware levels, also changed the capacitive sensor cable, did not work, I had to revert to 4.3.3 as recommended in the thread, normal operations.

 

 

 

Edited March 16, 2021 by JohnInOttawa

[Ceasar84 0]

25 minutes ago, JohnInOttawa said:

Just a thought here.  Since you mentioned both Ultimaker 3 extended AND firmware update, I thought you might find the following threads helpful.  I tried everything with both 5.xx firmware levels, also changed the capacitive sensor cable, did not work, I had to revert to 4.3.3 as recommended in the thread, normal operations.

I already noticed that Update messed with my auto level, after that update all havoc started to happened. Because of that I noticed that I do not have connector for capacitive sensor and started to do manual leveling that causes trouble in first place. I learned so much till now. I downgraded software to 4.3.3 and everything starts to work better. I also cannot use auto level ever again because I do not have connectors.

 

Thank you and community as well.

Edited March 16, 2021 by Ceasar84

[JohnInOttawa 104]

So if I understand it fully then, you have two primary issues: 

 

1) Firmware is at 5.xx.xx and likely needs to be flashed back to 4.3.3 and

2) You are missing the capacitive sensor cable.

 

The cable is a part that can be ordered from a reseller.  They are not expensive and do not require any soldering, you only need the ultimaker screwdriver to install the part.  Availability varies by region though.  Where are you located?

John

[Ceasar84 0]

1) I am located at Serbia in Europe. I will gladly purchase cable if there is option to buy it here during pandemic crises.

 

2) I manage to downgrade firmware to 4.3.3 using topics and links I found on this forum. 

 

To be clear I manage to make printer do his job with manual level but I am not 100% sure what I did different this time to make it work.

Edited March 17, 2021 by Ceasar84

[gr5 2,178]

That cable will not be listed on any websites however any company that sells UM3 printers can sell you that cable.  So you will have to email the company.