Adding false bed mat

Hi, i want to add a silicone sheet to my print bed, which is 3mm thick, how do i change the z axis start point to compensate for this?
i don't have enough travel on my bed leveling screws to adjust that way either, i have changed the z position delta on my actual printer but that make no difference,  there has to be a simple step to change this, i just cant find it, any help is welcome


  • Depends on homing direction. If oyu home to z max just reduce z height by 3mm. If you home z min then you need to reposition or reconfigure the endstop to trigger higher. It will always move until z min is triggered, also you can then go higher. Bus since that is no option you need to adjust the hardware.
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