Missmatch printing with ABS HF

[user_3100766036]

I use BambuLab ABS-HF Fillament (Bambu) for printing.

BambuLab Studio means, that I must activat “Klumpenbildungserkennung”.
I do it…
All other customizing is form profil: “0.20mm High Quality @BBL P2S”.

BambuLab starts printing and after few printed Layers the printing head goes fast in a position on the back board.

It’s a loudnes sound like a crash.
Thereafter the printing don’t forward at the same position.

Now I have an other printing profil. I’m printing slowy without cleaning tower.
The result is the same - forward printing on an other position.
Of the last print with this profil is attached the picture.

With PLA oder PETG I haven’t this problems with missmatch print.
It’s only with ABS.

How I can solve this?

Thanks

[JonRaymond]

It sounds like your print is warping up (which is very common on large ABS parts) and the print head is hitting it. This causes a step loss and shifts where the printer thinks the part is positioned.

Proper plate cleaning, chamber preheating, brims/mouse ears are all tools needed for printing ABS.

Here is a post with further tips and tricks for ABS

No fuss ABS/ASA tips and tricks to minimize warping

I print almost exclusively with ABS. Some parts pretty much max out the size capabilities of the bed. 12.5" part corner to corner. These size of parts are the most prone to warpage. [1740589252593] What works for me: Parts with high wall counts and/or thick top layers are most prone to warping. Avoid or model in relief cuts where possible. Where possible slice problematic parts to print per object vs a plate full of parts printing a full layer at a time. This seems to keep the individual pa…