Prusa XL, align printing parts and wipe tower depending on used print head.

[BernhardFe]

Today Prusa Slicer always align the parts automatically in the midle of the print sheet in front of the print heads by pressing the align button close to the back. This always is stressful for the cable and they touch each other very much. Additionally it is inconvenient to have the parts as much as possible far away. The load is also not balanced on the z-axis with print sheet.

When I press the auto align button I want to place the parts in the middle way of the used heads on x-axis and in the middle of the print sheet on y-axis. Example printing with head 1,2,3 the placement would be than in front of head 2 and in the middle if y-axis. Of cause, if the size of the printed part is bigger as then the way between heads it must be adjusted on x-axis to get it aligned on the sheet.

This will be less stress and touch for the cables and tubes of the heads, the print sheet is better balanced and it is more convenient for handling.