Forms & Contour Prep
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bulletStep 2  BUILDING THE FORMS FOR THE FUSELAGE SIDES AND PREPARING THE SIDES FOR CONTOURING
Fuselage side jigs ready to receive foam layers. Here's a shot of the fuselage side jigs once the masonite has been mounted to the jigs you make in earlier steps.  I made some 7/8" spaces from the leftover wood and mounted them on little plywood stands so they stood up beyond the jigs for later steps.
Double-sided tape was used to hold the foam down vice epoxy Rather than using the 5-minute epoxy specified in the plans, I used double-sided tape to hold the foam to the forms.  When the foam came off, it only stuck where the fuel gauges were because some epoxy from the layup leaked through and on the edges where the epoxy dripped down during the layup.  I didn't have any foam stick to the jigs in the middle of the foam.
No, the saw's not on, no, James doesn't stand here while I use it! First I'd like to say the saw is not on and James, my son, doesn't stand here while I use the saw, especially without any safety glasses!  I have simply mocked up, for the camera, how I cut the foam to width for various parts with my ripping attachment.  While many of you avid craftsman out there are wondering why I'd include a picture with such a simple concept - I just couldn't bear to not post this picture of James with that silly grin on his face!
Cutting the foam doublers for the fuselage sides was very easy with this combination of tilting head band saw and ripping attachment. I have a tilting head bandsaw which I used to cut the foam doublers for the fuselage sides.  The ripping attachment gets clamped at the right distance from the blade.  Then, by changing the angle of the blade I was able to cut the foam exactly to shape, consistently.  While I do enjoy sanding the foam like the rest of you, there's no substitute for clean, even cuts when you assemble the foam and then 'glass over it.

I did not exactly follow the plans for the next couple steps.  I cut all the foam spacers but didn't micro them to the 3/8" foam until I had routed and finished all of the depressions (for flight controls and fuel sight gauges) so I could get at both sides of the foam and flip it over.  I also didn't mount the foam to the jigs until all the depressions were routed and sanded and all the spacers were cut, fit together and sanded.

Small plywood pieces and clamps used to hold the foam spacers onto the foam below while the micro cures Rather than use nails to hold the foam spacers on top of the 3/8" foam, I made small pieces of plywood, covered them with packing tape and used clamps.  I also glued the strips, if you will, together and to the larger piece at the back before microing to foam below.  I think this made the second step easier because you didn't have to worry about the foams spacer joints in addition to the placement of the foam spacers on the foam below.  It took a bunch of clamps but worked fine.
Click here for Contouring the Insides

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