Here's some words on my ill-fated attempt.
What I found is that it's easy to
A: get things cocked like a jammed window if you don't pay attention to having the correct number of degrees of freedom, and
B: you need to have a bearing on both ends of the acme screw and a flex coupling to the motor or it will jam from the slightest mis alignment.
I spent awhile on this, but didn't need it so badly as to be worth the hours I was putting into it at that point, and there are now
fairly cheap 2 axis drives around anyway, so when I return to that I'll use one of those most likely.
A jewelers (or Dremel) drill press with a little work might do the up-down axis. I used the drill press, spring drive down, solenoid up, worked fine.
But I kept doing the wrong thing with the main axes and getting them to jam, which is fatal of you're using steppers and feedforward control -- you can lose position and not know it.
Posting as just me, not as the forum owner. Everything I say is "in my opinion" and YMMV -- which should go for everyone without saying.