Mario,
I looked in Don Ross's newest book "Flying Models Rubber, CO2, Electric, &
Micro Radio" and he has some pictures and explanation about a vacuum forming
machine / kit made by Douglas E. Walsh, 272 Morganhill Rd., Lake orion, MI
48360. Looks like a very nice setup and it can be gotten as a 2 stage unit.
I searched for a number on the ATT web site and got what looks to be a
direct match with a phone number of 248 391 8290.
Hope it helps,
Tim
[Denver, CO]
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-----Original Message-----
From: MIADsgns@... [mailto:MIADsgns@...]
Sent: Tuesday, June 15, 1999 9:28 PM
To: CAD_CAM_EDM_DRO@...
Subject: Re: [CAD_CAM_EDM_DRO] re vac forming
From: MIADsgns@...
In a message dated 6/15/99 7:40:02 PM SA Eastern Standard Time,
footman@... writes:
<< if you are looking for a good vac source, go to a local dairy
farmer (if
you have any around) - apparently the pumps they use for their milking
machines can be easily modified - also, how thick is the silicone
membrane
you are using - obviously the thinner the material, the more
intimate it will
be against the mold >>
Thanks Chris,
I am using a rubber strip around the perimeter top edge of the perforated
table. The rubber strip is the stuff you purchase here in Chicago for
weeather proofing doors. About 1/16" in thickness by 1/2 " wide,
works fine
once you get the frame lined up with the table.
I have seen photos of vac forming machines with a hand pump
mounted on the
vacuum box, similar to the ones used for inflating bicycle tires
the type you
would stand on with your two feet, with a T handle. I'd like to
know how
this is installed and how it operates, not sure how it all works
with a shop
vac, does it draw more vacum after the shop vac is turned on?
More info on this set up would be greatly appreciated. Anyone?
Thanks,
Mario
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