I’ve made some updates to the motor and slider gantry part. I’ve added a geared stepper motor (gear ratio: 5.18:1) with a 36 Tooth pully, though a 20 tooth pulley is also available, Black contoller box, new limit switches, new connector for the motor to the box and lifted the camera ball head on a section of 40mmx20mm aluminium rectangular tube so as to deal with the taller motor. New parts listed below. The geared motor works better than the direct drive and provides some resistance to the moptor free sliding when the is no power applied. I’ve also upgraded some of the M5 screws to stainless to minimise rust and corrosion.
Bipolar Stepper Motor with Planet Gear Box (18kg.cm)
Aluminum GT2 Timing Pulley – 6mm Belt – 36 Tooth – 8mm Bore
Micro Limit Switch Kit with Mounting Plate
GX12 4pin Male And Female Connector
Zulkit Waterproof Plastic Project Box ABS IP65 Electronic Junction Box Enclosure Black 3.94 x 2.68 x 1.97 inch (100X68X50mm) (Pack of 2)