I modified this primarily to adjust the bearing pillars to properly hold 608 bearing. The original was set to 606. I also modified all of the pieces to lie flat on the bed.

Ok, New Base, Top and i've added the bearing pillars as separate pieces. Print 4 bearing pillars. Nothing should need any support. Get the motor and controller like the original version used and I used an old usb charger to power it.

Here's a video of it working. I think it can probably be improved further, but for now it works much better for me.