High-Speed Printing Using ODrive
Not my printer, but wanted to share Vez3D's ODrive set-up on a corexy printer.
ODrive is a BLDC controller which can drive 'lower'-cost bldc motors via several input methods, including Step/Direction.
Vez3D is using it as part of the benchy speed boat challenge.
Here's a long video going over the configuration for a printer:
And an example print (~30sec):
The motor current must be very high, but it's quite impressive.