Finally got some time to cut out my yoke base today! This is for my final control panel, which will be a modular design...

Here are the parts used. Once again, I printed out a full-size template which aided in construction. I tried to make as few cuts as possible. The two triangular side pieces were cut off the corners of the left-over melamine from my cab with a single diagonal cut, and another small cut on each. The corners were rounded using a plane.

The front panel is where the yoke is mounted, which requires a square hole to be cut, and 4 holes drilled. Since the yoke's bolts are very short, the wood behind each mounting hole had to be drilled out with my 1-1/8" forstner bit (normally used for pushbutton holes.)

Here the base is assembled, minus the back plate, using cross-drilled 1x1s, glue, and 1-1/2" wood screws.

This is the nearly finished base and yoke, with iron-on melamine edging and t-molding installed. Still missing two Happ pushbuttons (one each side.) Hopefully, I'll have time this week to finish the plain looking 3rd panel, with artwork, lexan, USB sockets, and snaps -- which both hold down the lexan and allow the yoke base to be mounted / unmounted quickly. Right now, the weight of the base itself is more than enough to keep it put during normal use. I'm hoping the snaps will be enough to keep it in place during more intense play...

And here are the screw-snaps I'm planning to use. These are heavy-duty snaps from Home Depot. The flare of the male snap is quite extreme, so it mates with the female snap very tightly. Without close inspection, the male snap could easily pass as a finishing washer, commonly used to hold down the control panel lexan. I think I've figured out a way to use the snaps from 2 directions, so that the yoke would not come off unintentionally (more on that later). I think they may even be strong enough to hold the yoke when the panel is rotated upside down, but I won't know for sure until I get to try it out...
More pics as I finish the third panel!