Quick Bed Level Check

This is a quick test to determine if your first layer is set up to be the right thickness for printers that do not have an auto-leveling feature. I have used this often for my Ender 3 Pro whenever changing the bed or nozzle to refine the offset after doing the paper/shim alignment.

I have build files for the Ender 3 Pro provided, so the geometry is designed for a 250 mm build volume with a single layer of part. If your printer has a different bed area or layer thickness, please scale your parts in X/Y to fit the bed near the corners. Additionally, you will need to use whichever settings you plan to use for your parts, and scale the Z dimension to match your layer thickness. It is currently set up for a 0.28 mm layer.

When you complete your print, label each circle before you remove it from the bed. When you remove the parts, you can quickly tell if your layer thickness is too thin or thick by touch (see attached image). If your layer is too thick, it will extrude separate raste