Ender 3 + SKR 1.4 + Marlin 2.0.x bugfix - what bed size/min/max positions should I use?
The Ender 3 has a printable area of 220x220x250 mm according to the specifications. So, there is nothing wrong. Sometimes heated beds are slightly larger than the actual print area. E.g. 235x235 mm or 310x310 mm. For centering the nozzle to the build plate, you should look into &quot;How to center my prints on the build platform? (Re-calibrate homing offset)&quot; or &quot;Recalibrating Home-position.