The Voron Leviathan V1.2 is collaboration between JNP and the team at LDO to create a controller board specific for the needs of Voron 3D printers. It features:
- STM32F446 Microcontroller at 180Mhz clock speed.
- Reverse polarity protection for main power supply and HV Stepper supply input
- Superior stepper driver cooling (passive)
- Dedicated mounting space for a Raspberry Pi 3,4,5 or Zero 2W
- Dedicated power supply and uart port for Raspberry Pi
- 5x Integrated TMC2209 stepper drivers.
- 2x Integrated 48V rated TMC5160 stepper drivers.
- 4x Fan ports with flyback protection, 5V/24V selectable voltage, and tachometer inputs.
- 4x Thermistor ports with 2k2 ohm pullup resistors.
- 1x Dedicated LED strip with flicker free dimming down to 1%.
- 1x Neopixel port.
- 1x Hotend power output up to 180W.
- 1x Hotbed power output up to 240W
- 1x Dedicated Z probe port with selectable voltage and integrated diode.
- 3x Endstop ports and a filament sensor port
| Parameter | Symbol | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|---|
| Main Supply Voltage | Vin | 18 | 24 | 28 | V | Supply voltage for the entire PCB except for HV stepper drivers |
| HV Stepper Supply Voltage | VHV | 24 | 48 | 55 | V | Supply voltage for the HV stepper drivers |
| RPi Supply Out | IRPI | 3 | A | Current rating of Raspberry Power supply output | ||
| Hotend Current | Ihe | 7.5 | A | Current rating of hotend channel | ||
| Heatbed Current | Ihb | 10 | A | Current rating of heatbed channel | ||
| Fan Current | Ifan | 0.5 | A | Current rating per fan channel | ||
| Stepper Current | Imot | 2 | A | Current rating of each TMC2209 stepper channel | ||
| HV Stepper Current | Ihv_mot | 3 | A | Current rating of each TMC5160 stepper driver | ||
| Neopixel Current | Irgb | 0.5 | A | Current rating Neopixel port | ||
| LED-Strip Current | Iled | 0.35 | A | Current rating of LED strip | ||
| Endstop IO Level | Vstop | 3.3 | 5.0 | V | Logic level of endstop input | |
| Filament Sensor IO Level | Vfil | 3.3 | 5.0 | V | Logic level of filament sensor input |