Re: Repairing '55 Clipper seat panels

Posted by HH56 On 2017/7/10 14:11:25
Quote:

MrBumble wrote:
Well, I contacted a 3-D printing company in Tysons Corner, VA regarding my seat panel. I was told that due to the size of the panel, he would charge about $400 for the 3-D scanning alone. To get the panels actually 3-D printed in plastic, I would pay about $4,000!

I could do a hell of a lot on that car for four grand! I wonder how much he would charge to 3-D print a hubcap!


You could also buy a lot of fiberglass for that price. I can't say as I am surprised at the figure though. I figured there would be a setup charge and then with the large size of the piece I expect it would take a lot of hourly machine time to be paying for.

An interesting experiment might be to do a mold casting of the interior shape using something like Plaster of Paris. It does make sense the interior mold is the method used with the original vacuum forming process. Plaster is inexpensive and if the original piece has wrap around edges that would prevent the mold from releasing easily, it would be easier to break and sacrifice plaster to remove it without damaging the original part. You could also make a mold in sections too. Tape over the damaged places in the original to contain the plaster. When the plaster mold is dry and out, join the pieces and sand and finish the plaster to make it look as if it was a solid piece and any damage seen on the original was not present.

Without a large heat source and vacuum pump plus the proper air channels in the mold, it would be hard to do a real vacuum process using ABS plastic or a textured material like the original plastic. You might be able to lay up a few layers of fiberglass over that mold and use a vacuum bag and hand forming process to do the form fitting. I think a decent replica of the panel could be made with that method but I don't know how the surface would be finished out. I think the originals had a slight grain pattern which would not be present with the glass. Possibly there is a specialty spray paint that could duplicate the grain.

Almost wish I had a side piece to play with.

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