I have a new Workhorse printer that so far has printed test prints in the center of the bed well. However, when I attempted to put the printer into actual service (which involves printing an array of the parts we use across the bed) The print failed. The Z offset in some areas is so small that the first layer is thin enough to have holes dragged in it and cause nozzle clogs, while the Z offset in other areas is so large that the print cannot even adhere to the bed.
I used a feeler gauge to measure the Z offset in a 3x3 grid and found the Z offset map has sags and distortions that exactly match the areas of the print bed with failed first layers. See the map below.
Also attached are the pictures of test prints that I located approximately at each of those coordinates that shows the quality of the first layer there. Unfortunately my test print coordinate convention is different than the printer coordinate convention, but I have included a name reference in the grid below to look up the test print at that location precisely.
"Z = " measurement in the array is the printer Z setting required to just contact a .152 mm thick feeler gauge at that printer XY coord
Printer Y coord 250 x-y- x0y- x+y- Z = 2.075 Z = 2 Z = 1.775 140 x-y0 x0y0 x+y0 Z = 2.025 Z = 1.975 Z = 1.825 30 x-y+ x0y+ x+y+ Z = 2.175 Z = 2.125 Z = 2 Y Printer X 40 150 260
Anyone have any advice on how to resolve this problem? Or do I have a “lemon” so to speak? Taz support is giving some resistance to even acknowledging there is something wrong with this printer.
And here are some of the pictures of test prints at those locations:
Top right corner
Center of the plate
Bottom left corner