vacuumform plug question

[saberMaN]

hey guys this is kinda a weird question

will elmers glue hold up to vacuumforming?. the reason i ask is the piece which i want to vacuumform is coated in it

will it hold up? all i need is one good pull

 

[jackdoud]

You should be able to get one or two pulls from it but don't expect it to release well. It also depends on what it's covering.

 

[00MrNotWrong00]

How much true vacuum are you going to apply to the buck ?

If you are just using a vacuum cleaner you can get away with a lot.

How thick is your "glue shell" ?

What is underneath said "glue shell" ?

I'm real interested in what your doing, I'm looking for a cheap way to vacuum form something very big and made of foam. I do not want to do all that in Bondo.

How special is the item you are trying to vac-form? There is really only one way to find out, put it on the press and cross your fingers.

If it's something you can't make another one, cast it in plaster/presto patch and put that on the press.

Please post picture of how things turn out.

 

[saberMaN]

its for my 33'' tos enterprise im working on i made skeletal ribs for the saucer then i did a sorta paper mache thing cutting paper strips that match the rib shape then coated the whole thing in glue. my plan is to make one good vacuum pull then pour plaster into the vacuumformed shell then pull that out and make my master plug from that

so im hoping the glue will work

How much true vacuum are you going to apply to the buck ?

If you are just using a vacuum cleaner you can get away with a lot.

How thick is your "glue shell" ?

What is underneath said "glue shell" ?

I'm real interested in what your doing, I'm looking for a cheap way to vacuum form something very big and made of foam. I do not want to do all that in Bondo.

How special is the item you are trying to vac-form? There is really only one way to find out, put it on the press and cross your fingers.

If it's something you can't make another one, cast it in plaster/presto patch and put that on the press.

Please post picture of how things turn out.

 

[00MrNotWrong00]

That seems very unlikely to work to me. You should make a mold of what you have now in my opinion.

I don't know of anyone making a mold from a vacuum form before. Where did you hear of this technique ?


It may work, but it sounds scary to me.








john

 

[saberMaN]

ya it is kinda scary but ive tried it before and it worked out nicely

 

[jackdoud]

I'd probably do a coat of resin over it instead of PVA. It'd be almost like fiberglass then and wouldn't be as likely to crush.

 

[saberMaN]

ya i just coated it in clear epoxy resin. hopefully that will work. the problem i face is the money to buy silicone to make a mold of it. so im gonna try this for now

 

[00MrNotWrong00]

Take some pictures, please I'm very interested to see if this works.

 

[saberMaN]

will do

Take some pictures, please I'm very interested to see if this works.

 

[jackdoud]

the problem i face is the money to buy silicone to make a mold of it. so im gonna try this for now

I know how that goes, I just had a $140 hole put into my pocket yesterday for that reason. :lol

 

[saberMaN]

well heres the supper saucer pattern fiberglassed

http://s188.photobucket.com/albums/z309/saberman_album/?action=view&current=fiBERGLASS.jpg&newest=1

i spent hours tryint to get the shape just right

now on to the bottom saucer

http://s188.photobucket.com/albums/...tion=view&current=newlowersaucer.jpg&newest=1

comments welcome

 

[Ham Salad]

I'd probably do a coat of resin over it instead of PVA. It'd be almost like fiberglass then and wouldn't be as likely to crush.

YEAH , pva has alcohol and water in it...would probably make the glue sticky.

 

[saberMaN]

just put the second layer of epoxy resin on the top part of the saucer

YEAH , pva has alcohol and water in it...would probably make the glue sticky.