Z-probe commissioning problem

MoS-tekknix

Do you have deployprobe.g and/or retractprobe.g Files in your /sys - Folder?

number40fan

What does the web interface show for Z height when you have the nozzle just touching the bed?

Good call on the deploy and retract files too.

MoS-tekknix

@number40fan:

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Good call on the deploy and retract files too.

Thanks, i've trapped into the same issue after i'v exchanged BLTouch against Davids IR-Probe

RGN01

@MoS-tekknix:

Do you have deployprobe.g and/or retractprobe.g Files in your /sys - Folder?

Yes, I had those - I guess from the default SD install. I renamed both with a 'old_' prefix but now when I do a G30 the printer seems to freeze and the web interface says 'Busy'

Should I have left them in place?

MoS-tekknix

Did you check the Connections and proofed if you have bad crimped connections as David suggests?

number40fan

Delete those folders.

RGN01

@MoS-tekknix:

Did you check the Connections and proofed if you have bad crimped connections as David suggests?

I checked them with a multimeter when I installed the cable - it was OK. I'll check again. Thanks.

RGN01

@number40fan:

Delete those folders.

Do you mean files, please?

number40fan

Yes, the deploy and retract files. Delete them completely.

RGN01

@number40fan:

Yes, the deploy and retract files. Delete them completely.

OK, I've done that, they are deleted.

I've also homed the printer and slowly dropped the nozzle until it just touches the bed. The Z-height readings were:
Homed: 645.0
Touching bed: 212.5

And as it touched the bed the Z-probe field went pink and read 1,000 from the normal 0 for a split second.

Going to power it down and check the cable as suggested.

Thanks for the help, I appreciate it!

number40fan

Change the H numbers in M665 to 433. That'll fix the issue.

RGN01

Cable is good, no bad crimps and no crossed wires - they are in the same order on both ends.

number40fan

What type of motors, pulleys and belts are you running? Reason I ask is your M92 numbers are goofy.

RGN01

@number40fan:

What type of motors, pulleys and belts are you running? Reason I ask is your M92 numbers are goofy.

Motors are 17HM19-2004S, pulleys 16-tooth GT2, belt GT2

number40fan

Thanks. You're ok then. Just looked off to me having only ran 20 toothed pulleys.

RGN01

Since deleting those two files, issuing a G30 seems to put the printer into a 'frozen' Busy state and only a power reset or emergency stop seems to allow it to move again.

The status near to the Emergency Stop in the top right corner changes to Busy and nothing moves after that.

RGN01

@number40fan:

Thanks. You're ok then. Just looked off to me having only ran 20 toothed pulleys.

Phew, thank goodness for that! Thanks for checking and pointing it out anyway!

number40fan

Have you changed the H number yet? Just wonder if it is freaking out because your homed height is greater than what your config is.

number40fan

M665 R246.6 L440.0 B180 H443

Try this and see what happens.

RGN01

@number40fan:

Have you changed the H number yet? Just wonder if it is freaking out because your homed height is greater than what your config is.

Yes, if I manually lower the nozzle from homed position it stops at bed height so that seems OK.