Chassis plate and end plate machining - compts in, ready to wire up

Loads of clinch nuts. That way I can still replace stuff once the chassis plate is fitted and wired in.

A variety of holes for cable glands etc. Using a slot drill to open up rectangular holes.

D connectors for the encoders

Finished, deburred bottom plate:

Milling an opening for the fan filter on the top plate:

Top plate finished: 

All the big compts bolted in place:

Cabinet ready to receive...

In it goes.....

This is the interface circuit that sits inside the encoder plug. Seems to be a differential line driver / receiver SN65C1168 from TI.

Laid it out on the bench. All I have to do now is "just" wire it all up.....

Need some of those male / female standoffs for the D connectors, to screw the locking screws into. Found these in the kit that came with the Linux PC. Presumably they are for RS232 etc.

Butchered the original encoder plug to make it a surface mounting version:

That'll work: