I spy with my little eye. . .

[Erich Reichert]

Yes I am going to repro it along with a couple other bodies I've picked up. I have a place to make a mold for me and I'll be posting more info real soon. Thanks guys.

[Dr. Robotnik]

Yes I am going to repro it along with a couple other bodies I've picked up. I have a place to make a mold for me and I'll be posting more info real soon. Thanks guys.

I have a quick repro question...

On a body mold do you have to drill tiny holes in the mold to allow proper forming as you would complex small pieces? Or are they not that detailed?

[Erich Reichert]

typically not that detailed... i knowthe body molds i've seen of Protoforms don't have them, those are more to get the pulled piece to release around wierd shapes and such if i'm not mistaken. I don't know for fact though... this place is doing the mold and the forming for me

[Dr. Robotnik]

Thanks for the answer.

Can you ask them what plaster they use please? I would like to mold my huge 1/8th Hobby Products body if possible you see.

[Erich Reichert]

Its not plaster, they'll be commercial resin molds

[Dr. Robotnik]

I was advised to use plaster on here. Hmmm. That is odd.

[mikedealer]

hydrostone is way to go

[Dr. Robotnik]

hydrostone is way to go

Thanks mate.

Will that release from the shell once I have used it leaving me with the old shell to use if I wish?

P.S. I will do you a HT wing template tonight (if my memory works)

[terry.sc]

I have a quick repro question...

On a body mold do you have to drill tiny holes in the mold to allow proper forming as you would complex small pieces? Or are they not that detailed?

Yes, every body needs vents adding to let the air escape. Every groove, such as the window markings, need holes to get the air out of it and any internal radius, such as where the sidepods on an RC10 shell join the body. These holes ideally need to be no bigger than 1mm in diameter, ideally smaller if it can vent properly. Anything bigger than 1mm will show up as a dimple on the surface. You'll find out when you try vacforming a mould, you'll find you have to keep adding holes to get it to pull down properly.

I was advised to use plaster on here. Hmmm. That is odd.

The difference is Erich is planning on making bodies for sale, which requires a stable pattern that will last for many pulls without breaking down. Even the hardest plaster isn't going to last for dozens of pulls without damage, never mind hundreds. Tooling resin also does not shrink at all when you make a mould with it, unlike most plasters, silicones and resins which have an amount of shrinkage as they harden. This is why some of Kamtecs repro bodies are a bit smaller than the originals, in the case of his optima body it's about 10mm shorter later bodies he uses more appropriate materials. The disadvantage of tooling resins is the price. Having a trade account means I can order it, but here in the UK enough to fill one buggy body would cost me £70/$140 , double that for a touring car size mould. BTW you can't use cheaper casting resins as they have a lower melting point than the polycarbonate.

[mikedealer]

awesome thanks!

hydrostone is way to go

Thanks mate.

Will that release from the shell onc
e I have used it leaving me with the old shell to use if I wish?

P.S. I will do you a HT wing template tonight (if my memory works)

[Dr. Robotnik]

Thanks for more forming info guys, I am currently doing some slow online research for it. I have no idea how I'd drill 1mm holes in my 1/8th body mold though, maybe make it hollow.Hmmmmm

awesome thanks!

hydrostone is way to go

Thanks mate.

Will that release from the shell onc
e I have used it leaving me with the old shell to use if I wish?

P.S. I will do you a HT wing template tonight (if my memory works)

Something came up I am afraid and I forgot. I will definately get it done this week.

[hkp]

I won this the other day http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270211481093

It's actually a Kinwald/CR style shell not the original XX. i was planning on putting it on my RPM moulded car, Anyway, when I went down to see the guy, it figures he had these too: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270211486633

The Turbo Mirage is as new, painted really nicely. Needless to say. I made a very reasonable cash offer for the three shells and now they are sitting on my cars!