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Stupid Idea - But it did work .

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  • Member since
    June, 2014
  • From: New Braunfels , Texas
Stupid Idea - But it did work .
Posted by Tanker - Builder on Friday, March 10, 2017 10:23 AM

I Wanted to create a better canopy for my Aurora F-111 Aardvark .The original was so blurry as to be useless .

 At the time I did not have a Mattel Vac-U-Form . So I heated some clear sheet in a toaster oven till it was almost liquid I thought . I dropped the hot plastic over the original canopy just as my wife said " No Don't do it , You'll ruin it ! ."

  Surprise ! after it cooled off I popped it free , and it was better and clearer than the original! . I wouldn't advise doing this though . Sadly I tried it with a model car roof later and totally ruined the roof . Lesson learned .  T.B.

  • Member since
    September, 2012
Posted by GMorrison on Friday, March 10, 2017 10:42 AM

Plunge molding. It's surprising how much detail can transfer.

Pretty ambitious. I've gone as far as 1/72 navigator domes and the like, nothing too big.

A good source of plastic is the lids on salad tubs.

  • Member since
    May, 2013
  • From: Indiana, USA
Posted by Greg on Friday, March 10, 2017 10:55 AM

Do you still have your Vac U Form? And either way, where did you get it? (ahhh, yet another toy I wish I still had so much).

So when doing a Vac U Form canopy, can you just place the original canopy right on the machine plate surface and mold it? I can't remember if that surface gets hot or not.

-Greg

  • Member since
    December, 2002
  • From: Fort Knox
Posted by Rob Gronovius on Friday, March 10, 2017 11:10 AM

Use the canopy to make a mold out of clay. Then pour resin in the mold. Let it harden. Use the solid resin canopy as your form to make the copy with no risk to the original.

  • Member since
    May, 2013
  • From: Indiana, USA
Posted by Greg on Friday, March 10, 2017 11:19 AM

Ahah, so simple once explained.

Thank you, Rob.

-Greg

  • Member since
    November, 2009
  • From: SW Virginia
Posted by Gamera on Friday, March 10, 2017 11:24 AM

Yeah, don't guess it matters what you use to heat the plastic- never thought of a toaster though! 

"Fairy tales do not tell children the dragons exist. Children already know that dragons exist. Fairy tales tell children that dragons can be killed." -G.K. Chesterton

 

  • Member since
    September, 2006
  • From: Bethlehem PA
Posted by the Baron on Friday, March 10, 2017 11:35 AM

Yeah, I wouldn't use the toaster, but smash-molding is pretty useful.  I made a mold to replace the windscreen on an old Airfix Fiat G50.  I used 2-part epoxy putty for the mold, and a piece of clear plastic packaging from one of my shirts.  I heated the plastic over a candle, then laid it into the mold and smash! new windscreen.

The bigger the government, the smaller the citizen.

 

http://img.photobucket.com/albums/v233/HansvonHammer/Humor/th_MonogramMafia.jpg?t=1296972087

  • Member since
    July, 2004
  • From: Sunny So. Cal... The OC
Posted by stikpusher on Friday, March 10, 2017 4:27 PM

Murphy's Laws of War:(can't remember which number it is, but...)

if it is stupid, and it works, it ain't stupid.

 

F is for FIRE, That burns down the whole town!

U is for URANIUM... BOMBS!

N is for NO SURVIVORS...

       - Plankton

LSM

 

  • Member since
    September, 2012
Posted by GMorrison on Friday, March 10, 2017 11:51 PM

Until your 6 says you killed the toaster.

 

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Saturday, March 11, 2017 9:32 AM

I bought a heat gun awhile ago just for the purpose of vacuforming.  I also have one of those no-contact IR temperature sensors I intend to use to monitor the temperature while I am heating it.

Don Stauffer in Minnesota

  • Member since
    June, 2014
  • From: New Braunfels , Texas
Posted by Tanker - Builder on Tuesday, March 14, 2017 1:14 PM

Hi Greg ;

 I do have to admit . Less than a year ago I did acquire another Mattel Vac-U-Form . New in the original box ! ! I just put non - oil based clay under the canopy or canopy parts , Oh I Also use that Play-Doh made for kids .

   Heat doesn't hurt it . Fill the canopy  , Stick it on the non - heated Platen and swing the hot plastic and hit that Vac lever ! Beautiful canopies , all the way to 1/24 You do have to angle the canopies corner to corner for the larger ones .The platen Is , If I remember right Only 3.5" x 4.5" . No way to enlarge it either ! Works though ! T.B.

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