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Mini+ pushing printsheet away?!  

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Dennis_1337
(@dennis_1337)
Member
Mini+ pushing printsheet away?!

Hi guys,

I'm desperate. As you can see my print sheet has been pushed away and I don't know the cause. As a result the Mini keeps printing the object with an off set. I don't know why the nozzle is stuck. Because the printer is in the basement and I don't have a camera installed I really don't see whats going on. 

Things I've done: 

- recently changed the hotend, heatbreak thermistor and heat cartridge

- new setup of the pinda sensor(as shown in the manual of prusa)

- did the zero off set of the print sheet (first layer looks great, even the print does look great until this happens)

- firmware update 

- checked and setup the idler screw as shown in prusas manual

- cleaned the sheet with water and soap

- used the bgcode as attached

- it occurs whatever filament I'm using. currently PETG, but does also happen when using PLA

 

Used stock Generic PETG settings in Prusa slicer. The printer is in a housing with HEPA Filter fan(tukkari). I don't "feel" that there is any air flowing from the fan towards the print/nozzle. 

 

Maybe someone has an idea because I'm done.. Very unsatisfying so far. What I don't know or didn't check if there are any faults in the X, Y and Z axis hardware components.

Thanks and best regards

Dennis

Posted : 30/11/2024 9:57 am
_KaszpiR_
(@_kaszpir_)
Prominent Member
RE: Mini+ pushing printsheet away?!

>Because the printer is in the basement...
What's the ambient temperature inside the enclosure?
What kind of infill is this?

I had an issue with grid infill so I switched to rectilinear.
The issue was that if the ambient temperature was too low then the big prints were warping and this caused print head to hit the infill, but the print was so well attached to the bed that the whole bed with printed element moved to the side (about 5mm) until the nozzle slipped over  and was released.

With your changes it may also be a corrupted pendrive because shifts are massive.

Other ideas, print one item at a time.

See my GitHub and printables.com for some 3d stuff that you may like.

Posted : 30/11/2024 2:11 pm
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