Hi all,
I have an ender 3 V1 since a long time ago. It was working nice, and after a long time without using it, I’m trying to restart it.
The printer is equiped with a bigtreetech SKR 1.1 DIP mother board with marlin 2.0.x. I had no issues with all of this.
I had problems with the extruder, so I decided to remove extruder and nozzle and I installed the Creality sprite pro the last week. No problem with it. But I can’t apply the Z-offset.
I followed a lot of tutorials to do this, like this one for example :
01 - Chauffer bed et buse
02 - Sortir filament
03 - G28 Mise à l’origine des axes
04 - M851 Z0 Initialisation du décalage en Z (mise à 0)
05 - M500 Stockage du réglage en EEPROM
06 - G28 Z Mettre à l’origine l’axe Z
07 - G1 F60 Z0 Déplacer la buse au 0 du Z
08 - M211 S0 Désactiver sécurité pour pourvoir aller en négatif si besoin
09 - Déplacer l’axe Z (move axis) pour réglage avec le feuille
10 - Relever le résultat du décalage en Z
11 - M851 Z -1.02 Enregistrement de a valeur relevée (ici -1.02mm)
12 - M211 S1 Réactiver la sécurité
13 - M500 Stockage du réglage en EEPROM
14 - M503 Vérification de la prise en compte des modifications
15 - G28 Origine auto
16 - Faire le niveau du lit automatique
It’s not the only one I tried, but each time I tried I had the same problem. I have an offset of -2.30mm. I memorize it with M851 Z-2.30 command and I save parameters with M500 . I verify with M503 and it’s OK. This is the right value on the LCD screen.
But when I start a print, the nozzle is always about 2.3mm too high.
To verify if the offset value is applied, I tried to not indicate the minus and I save the value 2.3mm instead of -2.3mm with M851 Z2.30. This time the value is taken and the nozzle is higher (4,6mm). I don’t understand why it doesn’t work with minus value. Of course I tried to disable security, but it had no effect (command M211 S0).
Another weird thing, when I apply the negative offset (for me, the right offset !!), the bed leveling doesn’t work. At the first point, the Z axis is going down, but the BL Touch doesn’t go down enough, the process stops with an error and I have to restart the printer. With the positive value, the bed leveling is working, but as I said the nozzle is too high (about 4,60mm too high).
I hope I’m clear. Sorry for my english if I write mistakes, I’m not anglosaxon. And finally, thanks for your help !