I have a small CNC mill, with a limited Y of 150 mm.
I had to do it in two runs but it came out nice.
Yes, for the moment, both platters are in MDF.
I tested 1/8 step. I liked the smoothness. I will modify the software to adjust the rotation.
The funny thing is that the motor in "stand still" makes a noise after the two first rotation and then stops after the third. This repeats in each cycle of three rotations. But it's not important.
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern