Autoleveller

I see #100 + -0.01 on lines ~50 i have some what it means since its 'etching' above the PCB

Sorry for the Delay (a long one) but i have tried lowering down but now the issue is that in FlatCAM the value is -0.3 and in AL is -0.01? PCB (Double Sided) where is bought off from: http://www.ebay.com/itm/10pcs-100x150mm-0-4mm-FR4-Copper-Clad-Plate-Laminate-PCB-Printed-Circuit-Board-/322092679277...

Hi everyone i am new to this forum and the 'cnc arena'I downloaded this software and i made my PCB,I imported it in Mach3 and it looked OK so i proceeded it was doing all the pre stuff but when it got to the milling it was higher then i set why? 3 microns is what i set in flat cam before exporting a...