Fingers Crossed (HopefullyI'm Not Jinxing It)
My primary printer, an Ender 3 Pro mk2 that's been an exercise in sunk cost fallacy, Is now running a stock Creality 32 bit board, the kind the E3P mk3 runs. I'd tried an SKR mini E3 but one of the downsides of open source are the manufacturers building with project branding but cutting corners, like using double sided sticky tape instead of a double sided heat transfer adhesive and no heatsink on the heater mosfet! Jesus!!! The board went buggy and started crashing the firmware, board cooling fan never stopped screaming, trying to shift the heat but couldn't. I've completed 5 prints on the new board and 3 of those have been done at 200mm/s! The fans work hard during intensive jobs, like perimeters or top and bottom layers, but infill, even high density, everything calms down and I'm printing at 200mm/s, twice as fast as I've ever got this beast up to! There is another factor to this speed, the linear rail mod. My $250 printer has had another $300 spent on it ...