RSR Engineer
NL339x
This is the conditon of the substrate for the northern sidings control panel after I'd done with it. Originally this panel was supposed to be like the other two, with islands of clear material forming channels along which a probe would be run to make contact with the studs for the point motors to be operated.
Unfortunately I chickened out of making this archipelago and decided to use orthodox pushbuttons instead. So I drilled the pilot holes in the substrate and the clear top layer (see next pic) and started opening out those in the substrate to take the body of the pushbuttons. I found out all too quickly that the holes were too close together - 10 mm in diameter and 10 mm apart. Duh!
NL339x
This is the conditon of the substrate for the northern sidings control panel after I'd done with it. Originally this panel was supposed to be like the other two, with islands of clear material forming channels along which a probe would be run to make contact with the studs for the point motors to be operated.
Unfortunately I chickened out of making this archipelago and decided to use orthodox pushbuttons instead. So I drilled the pilot holes in the substrate and the clear top layer (see next pic) and started opening out those in the substrate to take the body of the pushbuttons. I found out all too quickly that the holes were too close together - 10 mm in diameter and 10 mm apart. Duh!