I am back

1. 4K resolution DLP projector - UV modified.
2. Top Down.
3. IKO Linear Rail for Z-axis.
4. NEMA-17 and RAMP v.1.7 controller board with Trinamic TMC2130 silent step.
OR
5. ODrive controller for DC "servo" motor.
6. Raspberry Pi 3.
7 NanoDLP slicer.
Attached is the micron and XY build area for a 4K projector as well as a link to Marco Reps video of him testing the ODrive among other.
Any comments are more than welcome.