LDO Nitehawk-36 Toolboard Rev C

The LDO Nitehawk-36 is a toolboard designed for round pancake motors featuring RP2040 MCU, TMC2209 stepper drive, ADXL345 accelerometer, and USB port. Nitehawk-36’s USB based connection method allows for a simple and easy setup compared to other CAN toolboards. The USB connection also allows for a secondary USB port to connect your nozzle webcam or eddy current probe.

Key Features:

Convenient wiring, no more complicated and error prone breakout cables – Nitehawk only requires 24V power and a USB connector to the RPI host.
USB Klipper connection, no additional software or hardware setup compared to CAN.
Secondary USB port, an onboard USB port allows you to connect a second USB device to your toolhead without running an additional umbilical cable.
Custom toolhead cable, a single combined USB data and power cable rated for drag chain use, but can also be used in umbilical configuration.
Convenient Input Shaping, run input shaper calibration at anytime with an onboard accelerometer.
Tacho enabled HEF, the hotend fan port is three pin tachometer compatible, allowing for additional diagnostics and safety.

System Overview:

The Nitehawk-SB system consists of three main components:

The Nitehawk system consists of two PCBs and the Umbilical Cable. A simplified wiring diagram is shown below:
- Nitehawk-36, this is the main PCB, which houses the MCU, stepper driver, fan drivers, and other circuits.
- Umbilical Cable, this is a custom flex cable that is rated for drag chain use. It delivers 24V power to the main Nitehawk PCB while also carrying USB data.
- USB Adapter, this simple PCB combines 24V power from the power supply and USB data from the Raspberry Pi into a unified connection to the main Nitehawk PCB via the Umbilical cable.

Printed Parts:

USB Adapter Mount, this is the mount for the USB adapter PCB. It is designed to be used with a standard Voron DIN clip and can be mounted in two different orientations. It also features a cover to reduce the chance of static discharge onto the PCB.

More information on this PCB kit can be found on the LDO website. Please click here.

Nitehawk 36 Github page can be found here

Nitehawk replacement USB cables can be found here