Most of yesterday was spent making tooling for the window frame I had to make today. These pictures show the fabrication of the window and it's frame for the tunnel gun position. Sorry for the poor quality of some of the photos.
Laying out the oval window on the sheet of Lexan. Due to the roll I had to put in the sheet metal for the tunnel gun, weight was needed to keep it all in the correct position...
This is with the Lexan cut to shape. The next step is to make the window frame...
The trick to making this frame the exact dimension around that oval window is to take the appropriate sized washer (or any round object with a hole in the center) and put your marker on the inside of the hole, while rolling the washer around the outside of the window...
After the boundary lines were in place, I cut out the middle first...
Then the rest of it...
Now for the fun/scary part. Making the joggle for the window to sit in the frame. The dies used here is what I made yesterday so that the joggle would be the right depth. If I were to make even the smallest error when rolling this out, I'd have had to start all over...
And here's the finished frame, clecoed to the window...
I'm waiting for the ball socket that the gun goes in to arrive before I can continue on this project. So you'll see updates on this piece later.
Gary