Z-endstop shim for Witbox + FlexPlate

thingiverse

Before you install your new BuildTak FlexPlate System on your BQ Witbox, you'll need to install this shim so the bed can be leveled properly. The FlexPlate System adds about 3mm to your bed height; You'll need to compensate for this extra height by installing this shim, which adds 3mm of material to the area of the build plate frame which contacts the z-axis end stop. Without this shim, you may find that you cannot tighten your leveling screws enough to keep your nozzle from hitting the bed. Before installing your FlexPlate, run the Witbox's "home axes" routine. As the bed rises up, notice the area on the bed's frame which contacts the z-endstop. (The z-endstop looks like a small black square with a metal arm, mounted near the top of the Witbox's back wall.) Once you've identified the area which contacts the z-endstop, it's time to install the shim. Raise the bed to about halfway up the z-axis so you can see the area of the bed's frame which contacts the z-endstop. Using adhesive or glue, mount this shim to the print bed's metal frame so that it will contact the z-endstop once the bed finishes rising. Home your axes again and watch to make sure the shim contacts the z-endstop. Now you're ready to install your new FlexPlate System!