Anycubic Mega X silent running upgrade

thingiverse

Upgrade parts for an Anycubic Mega X to achieve silent running. Achieving a quiet Mega X is done in two parts, the first is to replace the noisy fans and the second is to use upgraded stepper drivers. I chose to completely upgrade the motherboard in my Mega X with an BigTree Tech SKR 1.4 (Turbo) board together with TMC 2209 stepper drivers. The stepper drivers operate at low enough temperatures that no active cooling is necessary for the board or drivers themselves. Replacing the board requires cutting some of the original internal wires and crimping them with JST-XH plugs and might not be for the faintest of hearts. I can only imagine that it voids the warranty pretty much immediately. The PSU cover is a replacement PSU cover that can host a Noctua A9x14. Replacing that fan is essentially a no brainer and can be done without changing any of the existing wiring. Just print the part (PLA is fine), take out the PSU and remove the old cover. Seat the new fan using the rubber attachments and plug it into the PSU board. Then just screw the PSU back together and you are good to go. The board mount comes in two versions. One is just a Gorilla Board to SKR 1.4 adapter, the other version also comes with mounts for a Raspberry Pi 3 or 4 and a step down buck converter to step down the 12v from the PSU to the 5v required by the Raspberry Pi. If you put in a SKR 1.4 board, you'll have a free power cable from the PSU that is no longer necessary but can be used to power the Raspberry Pi. I use this set up to run OctoPrint and Klipper on the Raspberry Pi to run the 3D printer. I'm also working on a new Hotend mount that can hold 2 Noctua A4x10 fans to cool the part, since that fan is pretty loud as well.