CR-10s Pro V2 leveling issue

[tropic plover]

Hi, ive recently gotten a cr-10s pro v2 and i set it up but when it starts to auto level it pushes the nozzle into the bed (to the point where it would leave a hole or break the bed if i let it be), has anyone else had this problem? ive been trying to fix it for a while but cant seem to figure out.

[dark pollen]

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[maiden pawn]

Is your cr touch light solid or flashing red? Pics or vid of what's going on?

[tropic plover]

oh sorry i just saw that! it starts out flashing but turns solid once it starts leveling. ill send a video in a sec

My arm and hair go into frame at some points but it is what it is for a quick video, everything can still be seen

[maiden pawn]

Oof yea, that's rough. What's your z offset set to? I found this post that someone made where it seemed like an issue with the sensor to firmware and/or wiring. Also possible that your z offset is set too low and the sensor isn't adjusting for it

https://3dprintingspace.com/t/z-axis-keeps-going-down-and-hits-print-bed-without-stopping/4581

[tropic plover]

do i need to go to leveling settings to check the z offset? cause it starts to auto-level as soon as i go into leveling settings. also, i cant really look to much into it tonight (roommate asleep atm) but im gonna look more into this tomorrow. thank you for that article! im gonna post more updates and answer any questions that come up once im out of class tomorrow.

[serene prairie]

Typically when you hit “leveling” it does that initial probe in the center then displays your z offset. Unfortunately you can’t get to that step due to it ramming into your bed. Is the bed fully lowered?

[grand island]

A work around is to print a random file, then open the setting in the print page

You should be able to find the z offset there and set it to 0

[tropic plover]

I believe so, I'll check again once I'm home

[tropic plover]

Oh cool! I'll try that

[tropic plover]

so sorry for the late update the last week and a half i have had to do a LOT of work for classes and i havent had time to work on the printer. i got around to it today and the printing a random file and adjusting the z-axis idea seemed to work! im gonna do more testing tomorrow but it should be good! thank you for your help everyone

and incase anyone was curious, the z-axis was set to -20mm

[serene prairie]

I actually had an issue like this myself last week. During the measuring sequence, the last probe point my nozzle decided to ram into the bed. Then when I hit home it went wayyy above the bed in the center.

I took off the hot end shroud, unplugged the BL touch. Powered down the printer and re plugged in and all was good.

[serene prairie]

-20 is huge. Mines at -1.46