When you do the fiberglass mother mold, you just do is right on top of the silicone? Do you have to use mold release or anything on it?
Also, how many layers of fiberglass?
I don't use a mold release. One of the beauties of using silicone is that it doesn't tend to stick to anything. I lay up the mothermold with 3 layers of 3/4-oz fiberglass mat, making sure to add plenty of thickness to the edges where the two halves bolt together.
Yesterday I built up the mothermold for the faceplate:
And the second half of the mothermold for the main body:
Once all of the glass had set up, I went ahead and separated the mothermold from the jacket mold:
The flanges were drilled for bolt holes:
Then I went ahead and trimmed off all of the hairy parts around the outside edges:
Here's the rubber jacket mold after I'd removed the prototype:
And the empty mold reassembled and sitting on the bench:
I also pulled the prototype out of the faceplate mold:
So there's a lot of clutter on the workbench again:
Today I'll be finishing up the inner mold for the backplate:
With any luck, my next update will include pics of the first cast kit fresh out of the molds.
If you'd like to get a kit, please post here and I'll PM you with payment details.
If you wait until after I post pics of the first cast kit, the price will increase and I'll no longer offer free shipping.