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Vacuum forming questions

Old 07-13-2007, 08:25 AM
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Campy
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Default Vacuum forming questions

I am going to try my hand at vacuum forming. I have built a 10" x 12" x 3" box and a 750 watt hot plate in a reflective foil lined box for a heater and I have a 10 gallon shop vac for the suction (bag and filter removed for this).

Everything I have read has indicated that PETG is what to use for the canopy.

The canopy questions are:

The canopy will be about 2 1/2" wide x 3" high x 3 1/2" long.

What Thickness PETG would you suggest ? I have .030, .040 and .060 thick PETG, or do I need something thicker.

I have the plug already carved from balsa. Will regular balsa be OK to use or do I need to harden it with something, if so what ? Trying to carve the plug from pine would be extremely difficult considering the raised framework and rivet heads.

Can I also use the PETG for the wheel pants ? If not, what would you suggest using, and again, what thickness ?

Each half of the wheel pant is 7" long x 3 1/2" wide and (with the 1/2" backing ) 1 1/4" thick. The wheel pants are made from pine.

Thanks
Old 07-13-2007, 09:42 AM
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seanreit
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Default RE: Vacuum forming questions

Generally, the harder the wood, the better.
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Old 07-13-2007, 10:54 PM
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Default RE: Vacuum forming questions

Sean,

Great Looking plug !!! Could you give me an idea of what type wood you used to make the plug along with the tools that you used to shape it? I usually do a balsa fuselage,and then glass it for a plug.. but I'd like to try it the way you have done it. Thanks,

Dan
Carolina Custom Aircraft
Old 07-13-2007, 11:32 PM
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Default RE: Vacuum forming questions

That was made by a CNC machine, I was given the molds to bring the airplane to fruition, which as you can see, I've done. I don't know what specific type of wood the plug was made from, but it is a very very hard wood. Do a search for "eddie weeks" on google and go to the corpcomp site.

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