I’ve upgraded to the Taz Workhorse from a Prusa i3 mk3s and I am trying to set up a similar magnetic PEI powder coated steel bed. This bed style is very good for printing PETG and does not leave any residue on the finished parts like gluesticks, which is necessary for our application.
My issue is that the magnetic print bed I ordered from Printedsolid does not seem to be planar enough to work with the TAZ corner leveling system. The leveling system finds the Z offset of the corners and assumes the plate itself is planar enough to ensure a consistent first layer. I am getting enough difference in Z across the magnetic plate to make a consistent first layer impossible, and it cannot be fixed by simply shimming the corner sensors (ie non linear distortions).
So, I am wondering if there are any magnetic plate products that are planar enough to work with this leveling system. Or, perhaps there is another solution, such as making a mesh bed leveling map that the printer loads before each print, or finding a way to planarize the bed I have somehow. It looks like the magnetic bed I bought is only off by around 0.1 mm at it’s high points but I don’t have feeler gauges to measure the exact value. I’ve ordered some to facilitate this process.