Ultimate Simple Bed Level Test, Anycubic Kobra 2 Max

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This is a quick way to verify that your bed levelling and Z offset is calibrated and/or to find areas on your build plate that are best avoided if possible.Included is the STL file and a program that can be run directly on an Anycubic Kobra 2 Max.ADDED 2024-02-16: OpenSCAD script to create your own size and spacing. Note that this is my first attempt at an OpenSCAD design and as such it's pretty simplistic. Feel free to improve upon this.Before beginning, make sure that your Z offset has been tweaked for best results.Start by removing and cleaning the build plate with soapy water (IPA not recommended.) Thoroughly rinse and dry before re-installing it. For optimal results on your next run of parts don't move the plate after doing this test and keep the oils from your skin from contaminating the surface.Next, perform auto levelling.Now print the part! Two single-width layers are deposited in a continuous pattern across the entire bed surface covering about a 10mm grid pattern. While printing, you can try to gently rub away the print (wear thin gloves or use a plastic scraper) and if it comes loose you know there's a problem. Stop the print and make adjustments.If everything is adhered well but there were a few isolated areas where the nozzle was running too close, this might be okay. These are the places you want to avoid later if you can!When it's done, start at one end and free it using a plastic scraper or credit card. Begin gently pulling and try to remove the entire string of deposited filament without it breaking. It should be stuck but not so difficult to remove that the strand keeps breaking.