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Building Tips and technical articles. => Building techniques => Topic started by: Motorman on February 06, 2016, 09:30:25 PM
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I made this out of 2" "C" channel aluminum with 1/8" wall. The top edge was milled to a thickness equal to the kerf of my jigsaw blade (.050") so I can just cut little slots in any rib and get it on the jig. The leading edge is two pieces of channel so I can make a taper or straight leading edge wing. It sits on a 1/2" glass table top that is shimmed to be flat.
(http://i889.photobucket.com/albums/ac93/giffy6/Tundergazer%20wing.jpg) (http://s889.photobucket.com/user/giffy6/media/Tundergazer%20wing.jpg.html)
MM
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You're assuming that extrusion is straight and not twisted or anything? I've seen some that were WAY not straight AND twisted. y1 Steve
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I like the idea. Yes some places you have to look through the rack to find straight pieces. But why not just leave the edge at full thickness?
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Being a machinist, I checked them for straightness and they were certainly milled straight after that. I milled the edge because I didn't want a big slot on the trailing edge.
MM
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Well it's finally starting to look like something. Not sure how to finish the top. I think I'll just put a 1/4" sheet on it and round it off and go bubble canopy. This is a one off 92% TunderGrazer 40 so I don't want to bother with molding bucks for it. My first full fuselage, it's funny I've boxed the fuse on 3 sides and it's still pretty flexy, will adding the top give it the tremendous stiffness full fuse is famous for?
MM
(http://i889.photobucket.com/albums/ac93/giffy6/100_0395.jpg) (http://s889.photobucket.com/user/giffy6/media/100_0395.jpg.html)
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Absolutely,, Its not a box until,, well until its a box,, until then its just three chunks glued together