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27 May 2014 - 17:43113735
Cheaper Resin Alternative for large weapons?
Ok, I've been considering a Steven Universe - Pearl crossplay since it's aired here now.
I would love to make props for it if I do it. In the show the main characters (Crystal gems) have weapons that materialize out of their gems (that they're named after) in a rather magical-girl style.
Here is Pearl's Staff.
I've been thinking If I were to do it to make it crystal-like. Which my first bet would be using resin by making a cast of a prototype. I imagine it would have to be made out of two halves and my idea would be to coat the innerside with a sparkly blue nail varnish like how Kamui Cosplay does for her gems.

So my question is: Would there be a more efficient way to do this, or at least a cheaper way?
I've heard of this stuff called polyurethane liquid plastic, but I don't know if it would be translucent, which is the main reason I want to attempt this, otherwise I could just use the mentioned above prototype and paint it.
sorry this got a bit wordy...


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28 May 2014 - 09:33113760
Do you know anyone with a vacuum former?

Because if you had access to one of those, you could make your moulds, and then heat some clear acrylic and vac-form it to shape. Then all you'd need to do is paint the inside and stick the halves together.

More efficient and lighter, but it does require specialist kit to do...


28 May 2014 - 10:37113763
Quote PandoraCaitiff:
Do you know anyone with a vacuum former?

Because if you had access to one of those, you could make your moulds, and then heat some clear acrylic and vac-form it to shape. Then all you'd need to do is paint the inside and stick the halves together.

More efficient and lighter, but it does require specialist kit to do...

ahhh no I don't know anyone. I've been obsessed with wanting a vacuum former for years. Even my neighbour who works in the industry for vacuum forming doesn't have one. I'll keep it under consideration though because I have been hoping to re attempt it since it works so well for a lot of Sci-Fi costumes.


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29 May 2014 - 13:27113792
I really don't think you could vac-form that. Even if you did it in two halves, the chances of the moulds matching perfectly are really slim, especially considering the curvatures involved.

Polyurethane resin is pretty cheap, but it dries yellow-orange. Plus a two-part silicone mould for something like that would be pretty expensive, and you'd lose the master sculpt if you slice in in two.

I'd look into heating and cutting coloured styrene sheets.


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