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Making Rupees from Legend of Zelda

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Picture of Making Rupees from Legend of Zelda
I recently made some props for a local theatre group that was producing a musical version of "The Legend of Zelda: The Ocarina of Time." One of the key props from all the Zelda series are the "rupees", a gemstone used primarily to purchase items within the game. The theatre group wanted a red, green and blue one for their performance. I needed to come up with a way to make them cheaply and precisely, because the group wanted their props to be as accurate to the game as possible.

I thought about casting them, but casting translucent items is costly, messy, difficult and hazardous. I thought about cutting out individual pieces of plastic and gluing them together, but that would be time-consuming and would be difficult to make the seams look good.

I had a flash of inspiration when I thought about vacuum forming. I could easily cut a piece of wood to look like half of the gem, vacuum form two halves, then glue them together. This would also make it dead simple to repeat for all three rupees, making each of them match.
 
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Step 1: Making the Form

In vacuum forming, you heat a sheet of plastic until it is completely flexible, then stretch it over some kind of form, and vacuum all the air out so the plastic sucks in tight against that form. When the plastic cools, it retains the shape of the form. I wrote an Instructable about the homemade vacuum former I was using. 

To make the rupee form, I used a piece of oak I had in stock. I wanted something hard that I could get clean lines on. I cut the shape out using my table saw, then set the blade at an angle to cut the bevels into the edges. It only required very minor sanding to clean it up.
mcdonaldr4 months ago
woah
neocoolstar10 months ago
You vacuum formed the plexiglass??? How thin was it and did you heat it up with a heat gun and was it mailable when you heated it up with the heat gun?
Eric Hart (author)  neocoolstar10 months ago
It was 0.10" thick. It heated up fairly easily with a heat gun, and was malleable enough to vacuum form these rupees. The sheets were only about 9" by 9"; any larger, and I don't think the heat gun would keep the whole sheet heated without some parts cooling down.
Sorry another question: Is it easy to cut when heated? I've managed to find 0.15" thickness at Home Depot and I've used plexiglass before but with 0.25" and I know they're not easy to cut. Online, I've found 0.118" and I wasn't sure if it'd work the same as your 0.10"
Eric Hart (author)  neocoolstar10 months ago
It was tricky to cut; it wants to shatter and crack easily. I had the most success using an X-Acto blade and cutting with a couple of passes. It was also important for the acrylic to be well supported underneath where you are cutting.
Thanks I'll keep that in mind while I make (or attempt to make) something like this :)
Oh wow thank you for the insight!
hats999410 months ago
did anyone else notice that the game 3 life contest had 151 entries, the same as the number of pokemon in the first gen?
Phiske1 year ago
Finished product looks great. Post a pic with it in your hand to give it some reference.
Cool project.
these look amazing! Time to start some more projects! At least this is one my wife and our roommate won't give me slack about, I can bribe them with finished rupees!
Post an instructable on the spiritual stone soon! it looks like the gem from the Forrest stone
Eric Hart (author)  skuishingbugs1 year ago
Will do. I should be finishing them up in the next day or so.
Totally GEEKING out about this! Love it! I want an entire treasure chest filled with rupees! It of course led me to your vacuum forming tutorial and I soooo want to do this! :) Thanks for the inspiration!
kenkaniff1 year ago
Those look awesome. Great work.
Satrek1 year ago
Another reminder why I should finally try to get my vacuum jig to work... Thanks for sharing, I never thought of using transparent materials, especially not this way.
Eric Hart (author)  Satrek1 year ago
Yes, using acrylic with the vacuum former opened up a lot of possibilities. It can be tricky to work with because it is stiff and easy to shatter, but if you are careful, the results are worth it.
husamwadi1 year ago
Gunna make some rupees and buy me an arrow set! wish you could do this in the game instead of hacking away at weeds :P
These look great! Here, have a few rupees for your hard work
Awesome!
Eric Hart (author) 1 year ago
Thanks!
These are so sweet!
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