=====Upgrading the print bed ===== To get a properly flat print surface, one option is to replace the aluminium print plate with one made to higher precision, from cast aluminium. Cast aluminium has a big advantage that it warps very little with temperature changes, compared to extruded or rolled aluminium, due to lower internal stresses. **WARNING**: newer revisions of the Z-603S have been reported to have the heater PCB stuck to the aluminum print plate. Make sure you can actually remove your print plate before you buy a new replacement print plate! Download the designs for the new print plate [[https://www.dropbox.com/sh/izfcf0dlns73lz9/AAACEt7E5-atQxieGK1NYSCya?dl=0|here]]. More info on my blog... [[https://samuelpinches.com.au/blab/aurora-z-603s-new-buildplate/]] {{ :z603s:new-z603-s-print-bed.jpg?direct&400 |}}