marlin-tevo-tarantula

My Marlin Tevo Tarantula config. Based roughly on Jim Brown's config, tweaked for my setup.

Software

• Marlin 2.1.x
• OctoPrint 1.9.0 (OctoPi 1.0.0)

Hardware

• Tevo Tarantula
• Dual Z motors
• Replaced plastic stuctural parts with laser cut metal parts
• Raspberry Pi 3b
• BLTouch

Upgrades

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

Stepsticks

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