I used some Mighty Putty to help fix the gears to the Servos. The Servos are only $2.5 so I don't care not getting it undone. https://www.youtube.com/watch?v=kyA1Viugxjwhttps://www.youtube.com/watch?... RIP Billy Mays
Here is a short video of everything moving: http://youtu.be/rGSBhuBcDHAhttp://youtu.be/rGSBhuBcDHA
I think if the z axis gear rim would be a little bit smaller and the teeth a little bit longer that may improve this axis. My Servo is working really hard to move the z and it look a little bit cricket.
I'm very please how good the X/Y axis work. For me the X rack could be a little bit higher because the mighty putty and the screw add some additional height and now the screw drags on the table...
Anyway, good work and thanks for this nice toy!