After some napkin math, a motorized laser mount as above will have some nasty sine wave like effects if you take pictures in between steps of a rotating 3d scanner. Be aware, that 3d scanning ...

"Our demonstration of a very counter-intuitive optical effect invites us to reconsider ... On a screen opposite the blue laser, they saw a dark line where the green laser blocked blue light ...

[Jason H. Gao] and [Li-Shiuan Peh] used an infra-red (IR) line laser and the camera on a smartphone. Their prototype cost only $49 since they used a smartphone that was on hand. The article ...