I recently changed the motherboard and screen on my original Ender to the BigTreeTech SKR Mini V3. It was a SUPER easy upgrade!!! So far a LOVE the touch screen, the silent stepper drivers, the easy in updating firmware, the ability to print from multiple sources, and the ability to add WIFI!! Here is the link if you're interested in the upgrade: https://amzn.to/3Ab7SG3
After my the BTT upgrade, I wanted a quick calibration test I could check extrusion and test filament swaps with. This 5 minute tiny test fits the bill!!! (For me this print takes about 5 minutes, but depending on your print settings, it may be a little longer.)
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THANKS!
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