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2:26: Tracing and cutting balsa 7:34 Hinging sheets and adding glue 16:12 Insert into vacuum bag 22:33 Remove from Bag and clean up This is a LONG lightly edited video of vacuum bagging foam with balsa laminate. When i was just getting interested in vacuum bagging it was very hard to find information let a lone a start to finish video of the process. They are out there but hard to find or only parts of the process. This is what led me to go purchase some tutorials on the subject. So while i don't have a ton of experience in the process i did want to get this out there for anyone else that is looking to get into it. If you are interested in more information on the pump setup, this video was actually made as part of a vacuum bagging build log over in the flitetest forums: https://forum.flitetest.com/index.php... In this video i use balsa sheets but you could also use any "thin" plywood that will bend around your curves. First i took 3 sheets of my balsa and taped them together as seen in the previous post just above Next i traced the wing shape onto the inside of the balsa. I made sure the leading edge was flush and than added about 1/4 of an inch to the trailing edge. The leading edge will get sanded back and some stronger leading edge stock glued to it so the balsa sheets do not need to be touching. Than i used a razor blade to cut them out. Next i placed the top and bottom pieces on the foam and got them into the position i want them to be, taping the trailing edge with a few pieces of tape creating a hinge. Than open up the balsa and lay it flat on a surface you dont mind getting water and glue on. Using a squeegee begin applying a very thin layer of gorilla glue over the entire surface. You can apply a lot of pressure, you want the barest amount of glue. You can see the wood surface change color like its getting wet. Make sure its everywhere especially the edges. Once both insides are coated place the foam in between, position them correct and tape the leading edge with 2 or 3 pieces of foam. Cover the entire top and bottom of the wing in paper towels. This absorbs the excess glue and creates a path for all the air to escape to the vacuum. The paper towers create a big mess later but is very easily removed with a foam sandpaper block. Next draw enough vacuum down to remove the excess air but still be able to position the wing in the bag. Place the wing in the upper and lower wing beds to keep it straight and true and place weights on top. Draw full vacuum. For my white foam i did 6-8 inches of mercury. My automated on/off switch has an upper and lower range. If it drops to 6 it than pumps up to 8. Unconditionally by Broken Elegance 🎩 / brokenelegance Creative Commons — Attribution 3.0 Unported — CC BY 3.0 http://creativecommons.org/licenses/b... Music promoted by Audio Library • Unconditionally – Broken Elegance (No Copy...