Looking though Kickstarter I found a guy building a 3d scanner, that was printable, and had an option that included all the hardware (motors, laser, etc). You just had to print the parts and assemble.
And of course, you have noticed I haven’t had any luck with my Solidoodle 3d printer, so the kit has just been sitting. UNTIL they started selling laser cut kits. Bought one on the spot.
My stepson and built it over a long weekend, but couldn’t get it to align. So I did some surfing and never got a correct answer, until I found SoliForum. Found some real helpful people and I was able to piece together the problems.