The construction manual says to first attempt the frame 2 diagonal which is a c-section with no tight bends for an easy first attempt at laminating a frame. I got a curve spline thingy (the blue curvy thing in the pictures below) to help me connect the dots I drew on the plywood for frame 2 diagonal. It takes some jostling because it really bends exactly where you put pressure, instead of maintaining a straight curve that just connects the dots. It does work with a little elbow grease though. I used this to get a pretty good curve connecting all the points. I may try to find something else to help me draw the curves which may be a little easier, but we'll see. I then clamped one end of the 4' x 4' plywood sheet to the workbench to keep it stable while I cut out the shape.
I made a few practice cuts on outer edges of the plywood, this being the first time I've ever used a jigsaw. I practiced straight cuts, curved cuts, and plunge cuts to avoid making a starting hole. All that went pretty well as I learned the tools response to different kinds of forces. I felt comfortable so I cut out the inside of the curve I had drawn. Here is the aftermath.
I did well staying close to the line but not too close. Tomorrow, I plan on sanding down that last little bit exactly to the curve using a drum sander mounted on the drill press. Also, tomorrow is about a week after I glued the penacolite test block so I'll get to take sledge to that and see how it holds up.
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