Marlin Firmware for Creality Ender-3 / SKR 1.4 / TMC2209

Specs

This firmware is configured for a heavily modified Ender-3 fitted with a BigTreeTech SKR 1.4 and TMC2209s:

Motherboard

• BigTreeTech SKR 1.4
• Printed control box

Drivers

• BigTreeTech TMC2209s on X/Y/Z/E

Steppers

• X-axis: Creality 42-40/JKong Motor JK42HS40-1004A-02F 1.8° motor
• Y-axis: Anycubic AC-3D651/Busheng 17HD40005-22B, 1.8° motor
• Z-axis: Creality 42-34/JKong Motor JK42HS34-0844 1.8°
• Extruder: LDO 0.9° pancake motor
• Microstepping: 1/32

Hotend

• Bondtech BMG extruder
• Direct drive E3D V6 all-metal hotend and plated copper heater block with this mount
• Slice Engineering 50w heater cartridge, 450°C/high temperature thermistor, and 0.4mm vanadium nozzle
• Mechatronics B5015E24B-BSR 24v 5015 fan (parts cooling)
• BLTouch Smart

Bed

• Keenovo AC-powered silicone heater pad controlled by an OPTO 22 Z120D10 SSR
• Applied Magnets 2"x1/2"x1/8" N42SH High Temp Neodymium magnets attached with Permatex OPTIMUM GREY gasket maker
• Solid aluminum mounts
• 300mm MGN12H linear rail on Y using this mod
• Build plates:
  • Thekkiinngg textured PEI spring steel sheet (rotated 90 degrees)
  • Ultem PEI on spring steel sheet
  • Mamorubot polypropylene build plate
  • Biqu SSS "Super Spring Steel" steel sheet

LCD Controller

• BigTreeTech TFT35 E3 V3

Other

• Raspberry Pi 3 Model B+ running OctoPrint
• 3 x Noctua NF-A4x10 40mm fans powered by eBoot LM2596 DC buck converter (Two for the control box & one for the hotend)
• Mean Well LRS-350-24 Power Supply
• X-axis tensioner