Home position vs Zero position

edited March 2 in Extruder & Bed
Hi. I am in the process of configuring the Repetier firmware 1.0.4 for my RepRap Melzi v2.3 board using this tool: https://www.repetier.com/firmware/v100/ ; Currently its the firmware v 0.91.

I want to maximize the bed space available. The home position is X,Y (-28,-4), zero would be over the corner of the bed. 
Should I set X min positionX_MIN_POS and Y min positionY_MIN_POS to -28,-4 respectively?

Are the extruder offsets useful for this ?

Comments

  • > Should I set X min positionX_MIN_POS and Y min positionY_MIN_POS to -28,-4 respectively?
    Not relevant, but it is convenient if bed start with 0,0 so choosing min pos such that this is the case is a good idea. Otherwise you need to configure all beds to start at 28/4

    >Are the extruder offsets useful for this ?
    No. They are only useful if you have more than one extruder and then it should be offset to reference extruder.
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