These custom direct-drive motor assemblies use UTS frameless motor kits and MicroE encoders. The assemblies can handle high performance imaging, metrology and scanning systems. Features include a low profile with large through-holes for light beams, wires or slip rings; smooth motion with zero-cogging UTS motor kits inside; high precision with MicroE encoders for high resolution and positioning accuracy; and industry-standard compatibility with controllers and drives from 24 to 300 V.