Simple Clay Mold

About: In a past life I was a scenic designer, living in New York and building plays and fashion shows. Now, life has slowed down a bit and I'm figuring out how to be a good husband and dad.

This is a very simple and fast mold for casting plaster or epoxy. I'm sure the picture explains it all, but to make things all good and proper, I'll go through it step by step.

NOTE: This isn't my idea, I'm just reposting it, because I think there are many more applications for this technique. The idea comes from Hirst Arts Fantasy Architecture. If you are interested in this project, I suggest you go take a look there at www.hirstarts.com

Step 1: Push in Original

Push the original object you want to cast into the clay and pull it out.

Step 2: Pour

Pour the plaster or epoxy into the mold. I used Durham's Rock Hard.

Step 3: Let It Dry

Let it dry and peel it out. Bam!

This technique isn't super precise, so you might need to do a little clean-up.

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    12 Discussions

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    blksheepcutting Matt

    Reply 10 years ago on Introduction

    It does a little. I just try to be very delicate when pulling anything out of the clay. If it deforms too much, I just knead the clay and try again. This really isn't a super-precise way to cast things, but it is fast, easy and cheap, so it does have an upside.

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    RobinD64blksheep

    Reply 2 years ago

    Ok I wanted to make a mold out of like plaster of Paris of star wars figures so I need the details. Then I want to make clay figures with the molds. How would I go about doing this. Getting as much detail as I can and not damaging my original figures.

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    cutting Mattblksheep

    Reply 10 years ago on Introduction

    good point! its also reusable! for double sided castings could you just cast both sides and glue them together?

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    RobinD64

    2 years ago

    Ok I wanted to make a mold out of like plaster of Paris of star wars figures so I need the details. Then I want to make clay figures with the molds. How would I go about doing this. Getting as much detail as I can and not damaging my original figures.

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    edward32214

    8 years ago on Introduction

    Whenever your making a mold, i think it would be easier to cast from a flat surface for a more accurate copy. For instance containing your clay in an box and smoothing out the top before casting the plaster or epoxy. Also to have a super accurate copy split your clay and box in half, push in you model get a tube of some kind like a straw and push that adjacent to your model close and fill.

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    Sunny124613

    10 years ago on Introduction

    ok this is cool,ZIm gonna make one but make ice cubes instead!!!

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    John Smith

    11 years ago on Introduction

    Good instructable. You can also cast in lead, like in my instructable. (excuse any grammar or spelling mistakes in mine, that was a couple years ago.)