Z height correction for recovery

[camarade35]

Hello,
I voluntarily disconnected the cable to test the plugion. The printer returned home but when I ran the recovery file, the print went back too high.
Is there a way to adjust the pickup pitch or just the Z-hop pitch when home?
I don't use Klipper for information

Can we measure the value of going up from Z during Home XY and enter it in the plugin?

I see in the Gcode this

; Klipper Z is not checked
; Z enable is not checked

G90 ;absolute positioning
G28 X0 Y0 ;home X/Y to min endstops
G92 Z3.1 ;set Z with any homing offsets
;M211 S0 ; Deactive software endstops
G91 ;relative positioning
G1 Z-0.0 F200 ; correcting Z_HOMING_HEIGHT

Excuse my english, that's translate from french

[paukstelis]

Hello, I voluntarily disconnected the cable to test the plugion. The printer returned home but when I ran the recovery file, the print went back too high. Is there a way to adjust the pickup pitch or just the Z-hop pitch when home? I don't use Klipper for information

Can we measure the value of going up from Z during Home XY and enter it in the plugin?

Yes, this is the value you must enter for Z_HOMING_HEIGHT in the plugin settings.

I see in the Gcode this

; Klipper Z is not checked ; Z enable is not checked

G90 ;absolute positioning G28 X0 Y0 ;home X/Y to min endstops G92 Z3.1 ;set Z with any homing offsets ;M211 S0 ; Deactive software endstops G91 ;relative positioning G1 Z-0.0 F200 ; correcting Z_HOMING_HEIGHT

Excuse my english, that's translate from french

[camarade35]

Thx for reply but I'm maybe stupid, I don't see where I can set this.
Thx for Help

[paukstelis]

[ackerthehacker2]

What do you set Z homeing height to when G28 X0 Y0 doesn't change the Z axis (Prusa)? Leave it at 0?

[paukstelis]

What do you set Z homeing height to when G28 X0 Y0 doesn't change the Z axis (Prusa)? Leave it at 0?

Yes, leave it at 0.

[camarade35]

really thanks and sorry for my inexperience
Update 1.1.1 now, merci beaucoup

[plundrigan]

I am using Marlin 2.1.1

If Z_HOMING_HEIGHT is commented out, but Z_AFTER_HOMING = 10

Would I enter 10 in this Z Homing height?

Current value is 0 and had a failure and tried recovery, printed in mid air. Found this thread, thought this setting might be applicable.

[paukstelis]

I am using Marlin 2.1.1

If Z_HOMING_HEIGHT is commented out, but Z_AFTER_HOMING = 10

Would I enter 10 in this Z Homing height?

Current value is 0 and had a failure and tried recovery, printed in mid air. Found this thread, thought this setting might be applicable.

I'm not entirely sure why it would raise if Z_HOMING_HEIGHT is commented out unless something has changed Marlin. The Z_AFTER_HOMING is the distance to set the Z axis after it has been homed. Since the plugin never homes the Z axis that shouldn't have an impact. You can follow the instructions in the readme and send a G28 X Y after you disconnect/connect the printer and see what the Z-axis does.

[plundrigan]

"Since the plugin never homes the Z axis that shouldn't have an impact. "

When I ran the recovery print file. the print head did move back to the left and touch the x sensor twice. Then that is when it went back to the print and printed in the air. I did not notice when it moved up.

[paukstelis]

It homes X and Y. It does not home Z.

[plundrigan]

Is that a question or statement. :) I will test the gcode you suggested to see what happens with a disconnect.

[plundrigan]

I think I might know how my situation is different. I re-read one of your comments. The plugin only performs a G28 X Y upon disconnect/connect. I had a M112 which forced the machine to be turned on and off. Since this is seen like a startup. I wonder if that is what is causing the z adjustment. Bear with me I can still learning Marlin and the printer and how each feature behaves.

I had another failure M112. rebooted machine. Started the recovery job and x raised. I then stopped the job, lowered the z axis manually, and got close. The started the recovery job again, x and y did home no change to z. So there is something at a cold startup that is adjusting the z axis and throwing off the recovery. Still not sure what setting that is. I do have a CR-Touch so maybe some combination of stuff. Will keep tinkering until I fully understand what is happening.

[paukstelis]

This is a complication that might not be easy to bypass. There is really no way of OctoPrint knowing if the printer has been restarted, since it will look just like a disconnect. The only possibility I can think of is a pop-up that asks if the printer has been restarted.

[cakazz54]

Hello, MoveZ value is max 250, I want this value to be max 400. Is there a gcode for this? Please help. Ender 3 V2 4.2.7