Hi

I have upgraded from the marlin v1.0.0.0 to V2.1.2.5

on the firmware under marlin v1.0.0.0 there is a section

below is in rthe configuration.h on v.1

// these are the offsets to the probe relative to the extruder tip (Hotend - Probe)
// X and Y offsets must be integers
#define X_PROBE_OFFSET_FROM_EXTRUDER 0 //
#define Y_PROBE_OFFSET_FROM_EXTRUDER 0 //
#define Z_PROBE_OFFSET_FROM_EXTRUDER -10 //This is set in the gcode with M851


i used the last line to do offset on the z and this work great -- " #define Z_PROBE_OFFSET_FROM_EXTRUDER"


but in the version v2.1.2.5 this is no longer in the code...

where do i do the "Z" offset in the new version ?


you help will be grealy appreciated

#define NOZZLE_TO_PROBE_OFFSET { 0, 0, -10 }

Edited 1 time(s). Last edit at 01/16/2025 09:21PM by Dust.

hi

I did do this but after writing the FW still show z offset on the lcd on the print "0"

#define NOZZLE_TO_PROBE_OFFSET { 37, 2, -5.8 }

on all 3 values above the printer foes not take this, the x and y i have dane via the lcd, i have tried as well on the lcd the z offset but printer never correct on the offset to the bed..

i really not know what is the issue


in this command

#define NOZZLE_TO_PROBE_OFFSET { 37, 2, -5.8 }

is there any other setting that need to be on in the configuration.h ?

where would i see the offset on the printer lcd ?

i have tried bot the code you posed , does not even get onto the printer at all, then did with the lcd on the z offset, but set and save a option, then try to print then it z off set is stillout , it never get to the offset onto the bed

Marlin settings basics 101:

Settings that can be changed via gcode or LCD are saved in EEPROM
The EEPROM setting are independent of firmware settings.
Updating firmware will not update the values stored in EEPROM (1)(2)(3)
NOZZLE_TO_PROBE_OFFSET is one of these variables.

(1) On the first time you update with new firmware, if the EEPROM version does not match or the saved checksum is invalid, then the default vales in firmware are written to EEPROM to be used.
(2) If you enable the option EEPROM_INIT_NOW then each and every time you flash the firmware the EEPROM is reset to the firmware defaults.
(3) You can manually set EEPROM contents back to firmware defaults using gcode M502 - Factory Reset then M500 - Save Settings

Edited 1 time(s). Last edit at 01/17/2025 08:47AM by Dust.

hi sorry this is bit confusing

i did EEPROM_INIT_NOW and it did set the NOZZLE_TO_PROBE_OFFSET x,y,z

thank you


but when doing print still z offset still is -1.6 out , i the add this to the current offset z value and save eeprom , and it still say out , im not getting the z probe to get close to the bed, it for ever stay 1mm to 2mm away from the bed +/-//

any other suggestions ? that i can try

keep on staying to high above the bed for printing on the z offset..

i do have auto bed level with a swing servo... not sure if this make any difference


thank you in advance for your help

no matter what i i do z offset stay +/- 1mm above the printbed when init a print

keep on aading to minus on the z offset but nozzle stay above 1mm +/- above the bed

the is even if i go on the the LCD and go to "Configuration" then "Probe Z Offset" , and the Save the Config on the LCD,

no matter what i do after each try print measurement i take the offset and the manual add it to the above , but keep on printing +/- 1mm above the print bed

im not sure what more to try

thank you in advance for your valued answers..

any one any ideas

please not getting this fixed

thx in advance

hi any one have some feedback on this please

the z off set does not matter what is up this keep stay out wit about +/- 1mm never get to properly lay the first layer..

hi anyone,

is there place i can see the logical steps of the z offset once the bed leveling is done, where doe the z offset come in after the bedlevling ?

this wil halp in trying to solve the problem as im really do not know what else to try any more and really are pulling my hair out as cannot print

anyone ?

I have always used
#define PROBE_OFFSET_WIZARD and #define BABYSTEPPING

---

Computer Programmer / Electronics Technician

Hi there,

I am pretty amazed, that I am not the only one, dealing with such an old printer.
Yesterday, I also started upgrading my MendelMax 1.5 from Marlin 1.0.0. to 2.1.2.5 and today I figured out the same issues.
What I tried, was offsetting the Z axis by using M206. This looks like M206 Z 0.125. But I am not really sure, if this works really well, because for my first try I had to adjust the offset again by using the babystepping function. The next prints will show me more.
From my understanding, the M851 does only work in combination with an autolevelling system, like Bltouch.

@Uuys007: Did you solve our problem another way?
@all: Is M206 a good idea or am I totally wrong?

BR Gougga