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Old Jul 16, 2003, 09:46 AM
IAD
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Exactly. I'm going to take a shot at a hinged box, like Zbrubaker discribed on page 9.

I think this could work very well. I ran up the griddle last night, and in addition to the good heat distrubution, this thing has a proportionate controller, with auto temperature hold..!

Ordering foam very soon.

~Luke
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Old Jul 16, 2003, 10:27 AM
ParkScaleModels
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United States, PA, Loganville
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Hi Luke,

Great idea with the griddle! That gives me alot to think about...
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Old Jul 21, 2003, 08:09 AM
IAD
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Quick question: How wide/deep do I have to make panel lines/surface detail, for it to show up in ZepronII? (Just an est., obviously there are multiple factors involved.) I note that Aerogel states that a hole drilled with a No. 22 bit shows up... What dia. (in inches) is a No. 22?

Thanks.

~Luke
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Old Jul 22, 2003, 02:02 AM
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Bethpage Grumman, New York, United States
Joined Nov 2002
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areogel,
I can't get this zepron foam to vac-form in the regular way.
In the oven it melts or comes out too cold to form.
Any thoughts ? I developed my own way and it works well but I still would like to get the standard method to work.

Thanks
Mike
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Old Aug 18, 2003, 11:51 AM
IAD
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Well, look what I built!

Specs:
Max. foam sheet size: 42" x 13"
Max. component depth: 3.25"
Max. operating temp.: 400 deg. F

Heat source: 2 electric griddles, suspended from the top, with adjustable stand-off, to modify height above the foam.

Vacuum source (pending purchase): 6.5 HP shop vacuum, with 2" dia. tube

I tested the heating system today, and it can heat foam to forming temperature in 30 seconds... I'll (hopefully) be getting the vacuum today.

~Luke
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Old Aug 18, 2003, 11:54 AM
IAD
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Open. The foam sheet is sealed down on the mold (not installed) by the top, when closed. (Thus I don't need to use a bunch of those clip-things...)

Needless to say, this is specifically designed for cavity molds.

~Luke
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Old Aug 18, 2003, 01:44 PM
Thanks for the Fish!
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haha very kewl dude let us know how it works : )

Funny thing is down here we call that a cajun microwave..
same set up just with lights...

See if you cant find a old vacum pump out of a frige or on ebay
I found its needed on concave molds...


later aerogel
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Old Aug 18, 2003, 02:00 PM
IAD
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I have tested a cavity mold using a tiny little hand-vac., and actually it worked great! I think the key is to have the heat source remain in place, as you form the material...

~Luke
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Old Aug 19, 2003, 07:37 AM
ParkScaleModels
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Quote:
Originally posted by IAD
I have tested a cavity mold using a tiny little hand-vac., and actually it worked great! I think the key is to have the heat source remain in place, as you form the material...

~Luke
any pics of the mold or your test pull?
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Old Aug 19, 2003, 08:31 AM
IAD
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See here.

Mold is about 1" deep.

~Luke
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Old Dec 02, 2004, 12:21 AM
Lori, hey, you're home early
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United States, NJ, Trenton
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I have a couple of winter projects in mind and a small stack of depron to cook in the oven. Has anyone made any strides in the area of depron molding in the last year?
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Old Dec 02, 2004, 09:02 AM
IAD
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Strides? I made a huge stride... I realized it's not possible..!

About 50% joking there, but really... It's VERY hard. I would try matched molds, if possible.

~Luke
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Old Apr 27, 2005, 06:38 PM
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United Kingdom, England, Surrey
Joined Aug 2002
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How the Germans thermoform depron

My German isn't great but this thread describes how to thermoform depron into a cavity mold, and has pictures of the homemade machines used to do it.

http://www.rclineforum.de/forum/thre...threadid=45267

They are just sealed vacuum formers with circulated hot air from heat guns rather than a heating plate. Doesn't look too hard.

As others have stated in this thread I think it works because the material is continuously heated during the pull. Maybe someone with better German could translate the detail of the process for the rest of us?

Who will be first to replicate this?

Cheers

Joe
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Old Apr 28, 2005, 03:57 AM
Buy,sell
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this is an old thread
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Old Apr 28, 2005, 04:56 AM
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Quote:
Originally Posted by ilaurencet01
this is an old thread
What this one or the german one? The german one spans a couple of years and even references this one in places.
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