[BrianPM]

I didn't check my ballscrew lengths, only tested the ends to make sure they fit the bearings and preload nuts correctly. I'm just starting to machine the conversion parts now.
If Z or Y are too long, I figure I could cut/grind them down.
X- I can make my motor standoff a little taller.

I'm taking a shortcut with the motor standoffs to save a lot of time since I'm doing all the cutting manually.
I ordered these for the x and y mounts, they are a little tall, so I should just need to cut them down to the proper height. https://www.amazon.com/RATTMMOTOR-St...gateway&sr=8-6

I ordered a Nema34 mount as well, but its design is different (hollow) and I thought I would have to do significant modifications to get it to work, so I sent it back. Turning the standoffs on a lathe would be a lot easier in this case.

I just finished machinging my x-axis mounts this weekend, and took some measurements of the ball screw- the ball screw length looks to be dead on.
(Things are slow going, I've only had time to make chips late at night or earlty in the morning on weekends lately.)