I repurposed the Crayford from my 12" OTA, with its fine-focus knob allowing tremendous control of the knife edge. A 3D-printed coupling mated the focuser to a 2-axis linear translation stage.
The camera assembly was initially designed for a single carriage block, but I decided to double up to increase stability. I chose the MGN12H carriage blocks on a 250mm steel rail, bolted to a PETG-CF armature.
