Now those insert nuts, what keeps them from spinning in the mdf once I start screwing in the bolts to hold the joystick plate in? Maybe I'm just missing the mechanics of those insert nuts.
The threads on the outside of the insert are like the threads on a wood screw.
Think of the inserts as hollow wood screws with machine screw threads on the inside.
Once you tighten the inserts using a screwdriver for Dr. V's version or an allen wrench for GGG's, you mount the joystick to the underside of the panel using machine screws.
The friction between the MDF and insert is much greater than the friction between the insert and the machine screw. As long as you don't overtighten the inserts so much that they strip out the MDF, the inserts will stay right where they are when you firmly tighten or loosen the machine screws.
From what I can see those are very similar to the insert nuts?
The only differences are that Dr. V's has no collar and is tightened with a screwdriver, where GGG's has the collar at the top and is tightened with an allen wrench. The collar provides a positive stop at the surface of the MDF and a flat surface to tighten the machine screw against. Either one will work perfectly well.
After routing out 1/2" I'd only have 1/4" left since I have 3/4" MDF, is that thick enough to take a beating of some spirited Street Fighter II gaming?
I think that Dr. V will agree that for "spirited" play, a little more thickness won't hurt.
With the mdf being 3/4" is the joystick length long enough or are the sticks short?
Zippyys are physically the same size and shape as the LS-32s you mentioned earlier in the post so this applies:
Routing not necessary for long shaft Zippyys. Even the short shaft Zippyy will reach -- with 1/10" clearance from the bottom of the ball to the washer resting on the MDF.
Long shaft version clears by about .8" on 3/4 MDF with the GGG inserts shown above.
I'm about to pull the trigger on two Seimitsu LS-32's and I'm not sure which mounting bracket I want.
No need for a mounting bracket. The MDF and inserts provide the same function.
Just be sure to get the long shaft version.Scott