Hi, i am working on perfecting this build http://www.openbuilds.com/threads/lil-cnc-rework-hello-world-etch-video.2069/#post-18449 But I have been having a hard time finding the perfect 550 can size motor due to one issue they seem to all have, and I am not even sure what to call the problem so let me try to explain,. It seems that most of them have what iv been calling "Axial play" essentially if the motor is mounted vertical, the motor shaft has a little bit of play on the vertical axis making plunge depth a little sloppy (-/+ ~0.5mm) iv found one good motor that is can size 380 but is a little under powered for what i am trying to do. Wondering if anyone has a source for a solid motor in the 550 can size (can be a little bigger, or a little smaller) but it does need to have a 1/8 shaft and stats around the following,. 12v, 12,000rpm, ~2-5Amps no load. Iv even ordered a few brushless motors for testing but so far they all have that "axial play",.. getting tiered of watching the pile of motors that wont work grow, so figured id ask. Thanks!