I was trying to find a mold amongst the bit of wood..... but I couldn't.
I was worried mine would do that, so placed a garbage bag in the mold.... so I knew it would come out. (mine was chipboard)
It works but gives a textured look to the stator... makes no difference, just looks poor.... but at least it won't stick.
That aside, the stator looks pretty sturdy, the perspex won't lend it any real support, you may be better to just add another layer of glass over the top each side. This will seal your wounded wires, and add real strength to the stator.
Mine is supported in 9 places with 1/2 inch bolts. I regularly short break it (all the time actually) from power as high as 5kw.... with no ill effects.
(My Electric Vehicle charges from the mill. Plug it in, the mill starts, when the car is full, it just turns the mill off..... it does not wait for a lull in the wind)
It's coming together nicely by the looks.
...............oztules