RE: Replacing the hot end of my 3D Printer

Not sure what sort of printer you've got but I can highly recommend upgrading from Marlin to Klipper running on an Raspberry Pi 4 (with Octoprint). I also upgraded the main board of my Ender3 Pro to an SKR 1.3 running TMC2209 drivers.

Its much faster (100ms without issues), quieter and does better prints.