Cecil, I work for a company that does high volume production vacuum forming.
You don't need a "high" vacuum, you need a high volume vacuum pump. You need
to get the air out before the plastic cools. We make thousands of preformed
garden ponds and childrens wading pools each year.
Phil Piper
----Original Message Follows----
In a message dated 8/3/2000 4:31:02 PM Central Daylight Time,
[EMAIL PROTECTED] writes:
<<
To those with these vent caps,
My '63 Overlander also has one - and it's on borrowed time. 3 sq ft
of
high grade Lexan or
polycarbonate plastic costs at most $15 or $20 - someone's making a hefty
profit here! I have an
old milking vacuum pump, and in college worked with vacuum forming sheet
plastic as part of an
industrial technology program. It's a relatively simple process - make a
mold, heat the plastic,
suck it into the mold. If I do this for myself, would anyone be
interested
- as I will then have
the means to "mass produce" more?
Greg
>>
Greg
I do not have one of these caps on my 68 trotter, but I do have a high
vacuum
pump that would be good for this application. A pizza oven makes a great
heater for sheet plastic. I think my motorhome has one of these vents.....
Cecil in OKla
Check out www.cowboyforpresident.com
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