Genmitsu 3018 CNC upgrades: Mill acrylic, aluminium and carbon fiber

Upgrading 3D printers is so much fun, so why not upgrade a cheap CNC router to make it more capable? The Genmitsu 3018 CNC is the perfect candidate because it is cheap and has reasonable baseline performance.

The mods shown in this video are designed to be almost modular. You could upgrade only the spindle, only the stepper motors, only the mainboard or any combination of what is depicted. Pick and choose as you see fit or as you can afford.

The mains wiring should be treated with utmost respect. Consult a professional before attempting this wiring.

Previous videos on this machine/hardware:
Sainsmart 3018 CNC review: https://youtu.be/Y5nyjvytlBk
S42B closed loop stepper guide video: https://youtu.be/eM8zSG8fEkk

Shopping list:
Sainsmart 3018 CNC: https://amzn.to/2LANGFQ
BTT S42B closed loop steppers: https://s.click.aliexpress.com/e/_dVyzQEN
BTT SKR mini V1.1 mainboard: https://s.click.aliexpress.com/e/_ABpcY7
Reprap Fullgraphic smart controller: https://amzn.to/3iYwmJq
Dremel 3000: https://amzn.to/36gEy2z
Active low twin relay as used: https://amzn.to/2NJEkLa
24V 5A PSU (I sourced mine locally but this looks identical): https://amzn.to/3aaSL2n
Mains input switch: https://amzn.to/3aeRNSy

Parts/references from this video:
My Marlin firmware for this setup: https://github.com/teachingtechYT/Marlin/tree/3018-cnc-skr-mini
BTT SKR mini V1.1 GitHub: https://github.com/bigtreetech/BIGTREETECH-SKR-MINI-V1.1
My 3018 CNC electronics case and other bits: https://www.thingiverse.com/thing:4740697
Wiring diagrams: https://imgur.com/a/ICJgvhc
3018 CNC Dremel 3000 adaptor: https://www.thingiverse.com/thing:3938914
RepRapDiscount Full Graphic Smart Controller Case: https://www.thingiverse.com/thing:2813298
Kiri:Moto cloud slicer/CAM: https://grid.space/kiri/
Initial D image source: https://initiald.fandom.com/wiki/Takumi_Fujiwara%27s_Toyota_AE86

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