THIS IS A WIP, BASED ON DOCUMENTATION IN thisiskeithb's 'myskr' REPO
This firmware is configured for my Ender-3 fitted with a BigTreeTech SKR 1.3 and TMC5160s with Linear Advance enabled (demo) as well as the following mods:
-
Hotend
-
Drivers
- Watterott TMC5160s on X/Y/Z/E
- Watterott SilentStepStick Protectors on X/Y/Z/E
-
Steppers/Motors
- 1/32 microstepping
- Extruder: LDO 0.9° pancake motor
- X-axis: Creality 42-40/JKong Motor JK42HS40-1004A-02F 1.8° motor (Used as the extruder motor on a stock Ender-3)
- Y-axis: Anycubic AC-3D651/Busheng 17HD40005-22B, 1.8° motor
- Z-axis: 2 x Creality 42-34/JKong Motor JK42HS34-0844 1.8° (stock Ender-3 Z-axis motor)
-
Other
- BLTouch Smart
- 300mm MGN12H linear rail on Y w/(this mod)
- Printed control box
- Raspberry Pi 3 Model B+ running OctoPrint (SD card changes were to allow for remote firmware updates)
- AC-powered bed:
- Applied Magnets 2"x1/2"x1/8" N42SH High Temp Neodymium magnets attached with Permatex OPTIMUM GREY gasket maker
- Thekkiinngg textured PEI spring steel sheet (rotated 90 degrees)
- 3 x Noctua NF-A4x10 40mm fans powered by eBoot LM2596 DC buck converter
- Mean Well LRS-350-24 Power Supply
- X-axis tensioner
| AXIS | BRAND | NAME/MODEL | SIZE | STEP_ANGLE | STEP/REV | V_DC | MAX_AMP | τ_HOLD |
|---|---|---|---|---|---|---|---|---|
| X | Wetterot | 17HM3410 | 42x34 | 0.9° | 400 | 2V | 1.7A | 24 Ncm |
| Y | Creality | K42HS40-1004A-02F | 42x40 | 1.8° | 200 | 2.8V | 1.5A | 40 Ncm |
| Z(1) | Creality | JK42HS34-0844 | 42x34 | 1.8° | 200 | 4.83V | 1.5A | 35 Ncm |
| Z(2) | Creality | JK42HS34-0844 | 42x34 | 1.8° | 200 | 4.83V | 1.5A | 35 Ncm |
| E | Usongshine | 17HS4023 42-23 | 42x23 | 1.8° | 200 | 4.1V | 1.0A | 13 Ncm |