Grounding 6HC?

[bwoods]

Hello, we have a Duet3D 6HC that we are using to power a Dyze Typhoon. The wiring instructions on the Typhoon specify grounding a drain wire to the motherboard (the 6HC), however I see no place to do so; and the mounting holes don't seem to have grounding pads on them to ground to the case. Does the 6HC have a grounding point somewhere that I can use to connect the drain wire to and ground the board to our case?

[dc42]

@bwoods if it's just for shielding then you can use the ground pin on any of the 5-pin I/O connectors.