June 13, 2005

Just a little bit today. I set up the jig for gluing. I put PVC electric tape lining the inside of the jig and covered the backboard with plastic wrap. This should be enough to keep from gluing the spruce to the jig. Then I screwed the jig down to the backboard to keep things stable.

This frame is 50 mm thick, which means I'll be laminating 17 of my 3 mm strips of spruce to get the required thickness. The process used to glue the part will be to put glue between each strip of spruce while stacking them up, then put the entire mass of strips and glue into the jig at once, then apply clamps and then retighten a little later. Simple enough right?

I practiced putting the strips in the frame without any glue after I had the jig set up. All 17 strips did not want to go in the jig at once. There was considerable resistance to getting them all to conform to the curve of the jig. There didn't seem to be any risk of breaking any of the strips due to the lack of tight curves (a single strip took the curve almost effortlessly), but just the force alone to get all the strips to bend at once was a lot.

This is the thickest of all the frames. Most of them require only 11 or less of the 3 mm strips. It was easy to get 11 strips into the frame so this will most likely only be a problem for this frame. I was thinking about possibly doing half the strips at once and then after the glue is dry, do the other half. I'll try one more thing tomorrow to see if I can get them all in there at once with the help of clamps. If not I'll do half then half.

  |   Fuselage Parts Menu   |   Home