I have an Ender 3 and I have a problem with auto home. I use auto home and then level the bed with the wheels beneath the bed. I then start a print and the first layer is well above the bed. Perhaps about a millimeter. If I stop the print at this point and level the bed so that the first layer prints the normal paper width above the bed, everything works fine.
The stops for the 3 axes seem to be in the right places and there is nothing noticeable obstructing them. When I use auto home it does touch the stops at all 3 axes. My belts seem to be tight and there is no movement of the bed if I try to jiggle it with my hand.
Is there a way to adjust the Z axis so that the auto home elevation and the elevation of first layer of the print will be the same?
This is an example of the first lines of G-code:
;FLAVOR:Marlin ;TIME:4724 ;Filament used: 1.70716m ;Layer height: 0.16 ;MINX:96.551 ;MINY:96.545 ;MINZ:0.2 ;MAXX:138.448 ;MAXY:138.455 ;MAXZ:100.4 ;Generated with Cura_SteamEngine 4.5.0 M140 S50 M105 M190 S50 M104 S200 M105 M109 S200 M82 ;absolute extrusion mode ; Ender 3 Custom Start G-code G92 E0 ; Reset Extruder G28 ; Home all axes G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little