Archive for December 12th, 2010

12
Dec
10

More on the Big E…

Today I finished off all those concentric rings for the array. I went around my shop with calibers and found round shapes the correct size for each ring. It was simple then to cut the balsa, soak them in ammonia water and wrap them around held in place with rubber bands. I then placed them in my air circulating fan oven to dry.

Once dry CA them together, lightly sand, red spot putty and sand again. A bit of primer and I mounted them to the former that fits inside that cone. I will pull waste molds off these parts and cast them in Alumilite.

The idea here is to take these resin parts and sand and fix all the little flaws until perfect and mold. Much easier to point up and sand this way.

I removed the tape today from the hanger doors. The paint is so thick I’ll have to wait another day to point this part up but it came out very well. That Balsa foam works great BTW. I was able to use spot putty and primer on it directly without it eating the foam. As it turns out it water based and non toxic. Good for make small parts.

Tomorrow I’ll fill in behind those flat pieces against the array cone. Once this is done I can on Monday start glassing the secondary hull, the neck and the pylons. That leaves the nacelles. Getting there!

Steve




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