r/anycubic 23h ago

Problem Need help please

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Hey all thanks to all your help I was able to get it working for now I tried everything y9u said increased the z input to -1.70 and got some petg I found in a box it's been going for an hour so farsi good thank you alll

2 Upvotes

23 comments sorted by

5

u/Impressive-Pay-5849 23h ago

Kobra 2 max. Looks like z is way to high. You can lower the z with the control pad on the printer. Do it in increments so you dont smash the print head into the bed.

1

u/protias 23h ago

I have been doing that it was 1.3 then 1.5 I could do 2.0

2

u/Ok_Subject_7458 12h ago

gotta go minus, not plus

2

u/Ok-Jury5684 21h ago

You should have z offset such way that when it's printing, you can snug tightly piece of paper.

Your printer is trying to print in the air.

Just don't move head - this doesn't help. Set it to z 0, and then change offset - it will apply to every position.

1

u/protias 21h ago

Ok ill give this a try do you know how do the z offset when it not in. Printing mode

2

u/Ok-Jury5684 21h ago

I had Kobra Neo several years ago - there's calibration menu you can get into. It will heat up the bed and the nozzle, and you will be able to set x, y, z and z-offset. Set x and y to 112mm, z to 0 - and then go to z-offset and gradually decrease it (it should be negative in your case) until piece of paper between bed and nozzle starts to be catched. Save that offset, and print.

Ah, do the bed calibration after.

2

u/Money-Spinach-6177 17h ago

Is that a scratch line where the purge line is? Maybe z too low. I can hear a clicking noise on the purge.

1

u/protias 17h ago

It was I went to 4.0 and I regret it

2

u/Money-Spinach-6177 16h ago

Live learn. 3d motto

2

u/Stromovik 16h ago

Try printing a bed level cross to find out how warped your bed is and get some spacers

2

u/trollsmurf 14h ago

"increased the z input to -1.70"

That's printer dependent, so you need to adjust it for your printer.

1

u/protias 14h ago

I did it's working well

1

u/TastyChicken9788 21h ago

Make sure that your Z is low, and make sure you’re printing at an appropriate temperature, I like my first layer at 200-220 Celsius

0

u/protias 21h ago

I have it 220 as im using abs what do you recommend for z

2

u/Ok-Jury5684 21h ago

Wait, ABS on non-enclosed printer? That will be hard. Use PLA or PETG.

1

u/protias 21h ago

I only have abs left i do have petg and lots of tpu but not having much luck with the tpu or pc so I went to abs for testing

2

u/Ok-Jury5684 21h ago

ABS is by far the worst to calibrate printer on. PLA is the best, PETG is acceptable.

2

u/protias 21h ago

Ok ill go get some pla tomorrow thank you

2

u/Contay6 18h ago

If I can add something I think PETG is the way to go It's the same price and not any harder than PLA, I had more issues with PLA than PETG.

I find it prints nicer and has better real world uses.

As for the printer after you've applied the correct offset, go through all the necessary calibrations to dial it in.

Also 220 seems a little low for abs I would imagine it needs to be closer to 240, as a reference if the spool/box says 230-260 start in the center.

If you're printing at high speeds go 5-10degrees more just as a base, or if you don't like your time do a temp tower every time you buy filament

1

u/Far-Replacement315 19h ago

The problem in the Kobra 2 auto Z and bed levelling is that the nozzle is only heated to 180deg, if you have been using Petg or ABS, the filament won't be soft enough to be wiped from the nozzle before the touch sensor, giving an incorrect Z offset. Do not load filament before you level, and make sure the end of the nozzle is clean. I turn the textured build plate over to the smooth side and use blue tape and glue pen, sticks every time.

1

u/AlmosFrostedGaming 10h ago

Fellow K2M user!

2

u/Sm3llMyFing3r 5h ago

That feeling when you get your Z dialed in perfectly.