Quote Originally Posted by anthony27 View Post
Yep it is at the same spot each time in each software version, i don't think it is mechanical, must be a software issue,
hmmm is there a way to reset the device, i think there is a restore factory option?
Again, not the software. If it starts at the same (incorrect) level with ReG, Slic3r and Makerware then it is not the software.

Could be you accidentally changed a firmware setting that changed a z value. How much is the first layer from the nozzle? see if you cannot find a corresponding height in the firmware settings. It possible to set a first layer height in most slicers too. Did you perhaps play around with that on all three slicers? Again, check the values.

You can also try asking here. Lots of experts that can probably give you far more insight than me.