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Tool 5 grabbing always fails during Offset calibration  

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sioux612
(@sioux612)
New Member
Tool 5 grabbing always fails during Offset calibration

Just got a 5t XL, fully assembled.

 

Did the finishing touches, did the calibration of 5.1.2, picking up of all tools worked perfectly.

Then I got to the offset calibration, and suddenly it did not manage to pick up Tool 5 even a single time

 

 

 

 

Meanwhile switching to the tool menu and telling it to pick up tool 5 never caused a failure

 

Extra annoying because it's tool 5 so any failure happens after like 12 minutes.

 

I switched the tools, which didn't help, I reseated the dock which didn't help, I switched the entire dock and tool 3 and 5 and that did solve the issue for one time.

Then I switched nozzle, had to redo the offset and of course it now fails in the exact same way

And it doesn't look like it actually does the correct sideways movement, it does a diagonal movement for some reason

 

Prusa live chat was no help.

 

Oh and I updated to 6.0.1 and it didn't change anything

 

I did add videos to this but they don't appear to me?

 

https://storage.googleapis.com/prusa3d-content-prod-14e8-wordpress-forum-prod/2024/05/f4a89b29-20240524_145437.mp4

 

https://storage.googleapis.com/prusa3d-content-prod-14e8-wordpress-forum-prod/2024/05/633bebd2-20240524_151001.mp4

This topic was modified 2 years ago 3 times by sioux612
Posted : 26/05/2024 2:52 pm
christy2951hernandez
(@christy2951hernandez)
Member
RE: Tool 5 grabbing always fails during Offset calibration

Hello,
The user is encountering a consistent failure during the Offset calibration process on their Prusa XL. Specifically, Tool 5 (presumably the fifth printing tool) fails to be grabbed by the printer head. This issue only occurs during Offset calibration, not when selecting tools through the standard tool menu.
The user has already attempted several troubleshooting steps, including Verifying all connections and reseating the dock for Tool 5. Swapping Tool 5 with another tool (temporarily resolved the issue). Replacing the nozzle on Tool 5 (required recalibration, and the issue returned). Updating the printer firmware (no change in behavior).

Posted : 31/05/2024 6:02 am
Diem
 Diem
(@diem)
Illustrious Member

Look at the row of heads/docks from the side, they should be in a straight line.  If any are out of line they need tightening into place - usually it is the one that fails but not always.

Cheerio,

Posted : 31/05/2024 3:30 pm
David
(@david-15)
Active Member
RE: Tool 5 grabbing always fails during Offset calibration

sioux612, Same thing is happening to me on T4 during tool offset calibration after switching nozzles. Did you ever find the issue?

Posted : 24/05/2026 9:12 pm
Pe3d
 Pe3d
(@pe3d)
Trusted Member
RE: Tool 5 grabbing always fails during Offset calibration

At the second Video you can See that the toolhead is too far away from the Port. 

That could Happen If your dockingports havent been screwed in enough. That little screw at the Back have to Take some Torque. 

 

And which isnt meant in the Manual (afaik) you have to Position the Ports a little bit further to the Front when calibration. They have to be straight up.

The Docking process shouldnt make that KLANK Sound Like in the first Video.

 

Firmware 6.4.1 seem to be ok. But i fear from my experience that they Put the Regression Bug Back in.

You know that Error which slowy adding layershift that Ruins your print looking Like the Tower of Pisa? I dont know when that occured but i remember that Changing Sound of the docking process. Because IT having driving me nuts and i Checked everything in this printer. Months of doing, until they submit there was a Firmware bug. Argh.

Started to Sound normal, then degreading, finally fails Docking. Sometimes with layershift, Sometimes not.

 

Your Heads Sound Like near failure

Posted : 31/05/2026 7:15 am
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