My Marlin Tevo Tarantula config. Based roughly on Jim Brown's config, tweaked for my setup.
- Marlin 2.1.x
- OctoPrint 1.9.0 (OctoPi 1.0.0)
- Tevo Tarantula
- Dual Z motors
- Replaced plastic stuctural parts with laser cut metal parts
- Raspberry Pi 3b
- BLTouch
Printable upgrades I use
- BLTouch mount for Tevo Tarantula
- Tevo Tarantula bed level knob
- Adjustable Belt Tensioner/Tightener and Belt Tie (Tevo Tarantula)
- TEVO Tarantula Fan Duct
Some of my stepsticks are DRV8825. These have a 0.1 Ohm resistor. The motors are 425HDC4043Z-22B. These are rated 1.5A. The Vref has been set to 1.0V
Vref = I * 8 * Rsense
Rsense = 0.1 Ohm
I = 1.5 * 80% = ~1.25A (80% of max current)
Vref = 1.25 * 8 * 0.1 = 1.0V