here are the things I’ve gathered so far that make printing easier and better all thanks to my friend Calvin at 3D Makers Warehouse
these upgrades are for the Creality Ender 3 Pro
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Micro Swiss Direct Drive Extruder
This is probably the most necessary upgrade if doing TPU on an Ender 3 Pro. It gets the pushing and pulling action closer to the nozzle.
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BIGTREETECH SKR Mini E3 V2.0
This does a lot of things but the most noticeable is it makes the stepper motors quieter. Important to get V2.0 not V3.0 as it’s a better board.
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WhamBam Flexible Build Plate System
Flexible Build Plate system allows for the best printing surface.