Rubber Mold Making - DIY Castings

A Simple Toaster Oven Mold

Making a very simple toaster oven mold of a flat pendent.

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Making a Toaster Oven Mold Using New Rectangular Mold Holder

I show how to make a toaster oven using rectangle mold frames.

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Making a Toaster Oven Mold

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Making a Toaster Oven Rubber Mold with Molding Rubber

A toaster oven mold made with green mold rubber.

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Trying Out a Different Type of Mold Rubber

Trying out a new mold rubber.

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Making a Toaster Oven Mold of a Weiner Dog Ring

Using a sling casting rubber I show how to setup the mold that vulcanizes in a toaster over.

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Part 1- An Experiment to Make a Half Sided Mold

An idea that worked out great. By using a plate that sits inside the mold frame I make a half mold.

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Part 2- The Results of the Half Mold Idea

Showing how well the half mold idea.

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Showing how the Rectangular Mold Frame will Fit in my Mold Making Kit

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Opening the Mold of the Sideways Bunny Ring Part-2

The powder separation mold of the sideways bunny was a success!

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Making a Powder Separation Mold of a Sideways Bunny Ring part-1

Using a semi hard mold Rubber, I show how to mold this sideways bunny ring.

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How I Cut the Toaster Oven Mold Rubber

Using my Arbor press and die I made from copper pipe I show how I cut out Mold rubber for the toaster oven system.

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Part 1- Making a Toaster Oven Rubber Mold of a Large Heart Pendent

Using the mold holder I made a toaster oven mold for casting pewter and wax injection.

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Part 2- Taking Apart the Toaster Oven Mold of the Large Heart Pendent

Wax can be injected or gravity poured using pewter.

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A Simple Way to Cut a Round Toaster Oven Rubber Mold

Using my toaster oven mold kit I mad a simple round mold of a ring and show an easy way to cut it.

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Showing How a Toaster Oven Mold of a Ring Works with Wax Injection and Pouring Pewter

Another toaster oven mold wax injection or gravity cast with pewter.

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Using the Toaster Oven Rubber Mold

I show how to cast pewter into the toaster oven mold.

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Removing the Rubber Mold Vulcanized in the Toaster Oven

Showing how easy it is to make a quality mold using a toaster oven.

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Molding Tool that Works in a Toaster Oven

A simple tool for making rubber molds in a toaster oven.

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Part 1- Making a Toaster Oven Rubber Mold

Having fabricated a copper pendent I now want to mold it so that I can cast it in copper without having to fabricate each one.

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Part 2- Separating the Mold- Copper Pendent

Showing how the mold is taken apart.

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Video 1- Making a Toaster Oven Rubber Mold

Using a silicone mold rubber,I show how to vulcanized rubber mold of a pendent. Toaster oven temp is 350* F and cook time is 50 mins.

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Video 2- Opening the Toaster Oven Rubber Mold

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How to Determine Mold Rubber Thickness

Generally mold rubber should be 1/4 taller than the mold frame.

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Some Basics About Wax Injection

This is just a quick video on wax injecting in hopes of helping the beginner understand simple wax injection and isn't intended to educate the professional. As a substitute of Talc some use corn starch. PSI is usually around a 7 unless the mold is fairly large or really thin requiring more pressure to inject This is done by increasing the pressure by 2 pounds at a time.

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Mold Making- Powder Separation Step One

In this video I show how to set up a powder separation mold using silicone mold rubber in a basic toaster oven. Temp is 350* F and for 50mins.

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Mold Making- Powder Separation Step Two

How to remove the mold from the mold holder.

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Mold Making- Powder Separation Step Three

I show how to use a ball bur to cut the spurs in the mold. while the more proper way is to solder spurs onto the items before making a mold, not everyone is comfortable with this so this method can work out great.

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Mold Making- Powder Separation Experiment

Using the mold rubber I am making a vulcanized rubber mold of a bronze wide band ring.

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Mold Making- Powder Separation Experiment Results

In this video I open up the results of my experiment.

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