I'm not understanding what you mean. A picture is worth a thousand words.
The "Virtual Build Surface" in Cura (Machine Settings X(width), Y(depth)) must match the actual "Printable Area" of the build surface on the printer. The Creality definition file will make it 220 x 220. For that to be true - the Home Offset position must be at a point 7.5mm in from the left edge, and 7.5mm in from the front edge of the build surface.
My Ender 3 Pro glass bed measures 235 x 235. It has a 1mm bevel all around (non-printable area). In addition, I want another 1.5mm safe area all around. That means I have a 2.5mm non-printable area around the periphery of the glass. 235 - 2.5 -2.5 = 230 and so in Machine Settings I make the bed 230 x 230.
I Auto-Home and then move the Z up 5mm. Measuring with a ruler, I move the nozzle to a point 2.5mm in from the left edge and 2.5mm in from the front edge of the glass. I drop the Z back down to 0 and then select "Set Home Offsets" on the LCD followed by "Save Settings". When I tell the nozzle to move to X=230 and Y=230 it will be 2.5mm in from the right rear corner of the glass.
If your Y switch is mounted too far forward on the Y beam, it will limit how far back the bed can travel. After Auto-Homing, the nozzle should be close to the front edge of the bed in the Y (and in the X). With the printer turned off, pull the Y forward as far as it will go. The nozzle should be very close to the back edge of the build surface.
Drucker verwalten > dein Drucker > Geräteeinstellungen
Da kannst du den Versatz und beim Extruder eingeben und den Bauraum ändern. Falls du das meinst, ich hab da noch nie was geändert.
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