DCI stepper motor driver.
The provided stage. Marked "DCI MC-001".
Bottom of stage has four holes in a 2x2 grid. Holes are tapped for 10-32 machine screws.
ID of holes is 4.15 mm.
Pitch of holes in short axis (direction of motion): 50.53 mm
Pitch of holes in long axis: 79.55 mm
Top of stage has six 10-32 holes in a 2x3 grid. Spacing in both axes is 50.53 mm.
The stage is meant to be manually controlled via a joystick.
The joystick module is a 2-layer PCB which generates step/direction pulses using one CD4046B PLL IC for each axis. This is clearly a prototype or low-volume product given that there are at least four obvious pieces of rework on the board.
The drive unit accepts step/direction pulses on a DA-15 D-sub connector. Only six of the 15 positions are loaded, configured as follows. All signals are 5V CMOS logic levels.
|Pin number||Wire color||Function|
|5||Orange||+10V power to joystick|
|9||Yellow||X axis step|
|10||Green||Y axis step|
|11||Red||X axis direction|
|12||Brown||Y axis direction|
TODO: internal photos of the drive unit, back panel, etc