Casting

Casting of aluminium in the flowerpot furnace

You are my density

You are my density

It can be a bit tricky to determine the nature of a mystery metal, and in the home workshop it can be even harder to tell the purity of a metal. So I looked up the density of Aluminium and

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Casting a flywheel – Melting metal

Casting a flywheel - Melting metal

Prepare furnace There’s not a lot of preparation to the furnace other than plugging in the fan and connecting the pipe to the side of the flowerpot furnace. However, one key piece of preparation is to ensure is the layout.

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Casting a flywheel – Patterns in the sand

Casting a flywheel - Patterns in the sand

This year my main project is to build a small stirling engine, a project that’s been bubbling away since 2011. I decided to make a few customisations to Jan Ridders plans, one of these is to use a cast aluminium

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Magnifier Lamp – Heavy metal, shiny metal

Magnifier Lamp - Heavy metal, shiny metal

I did a test assembly of my magnifier lamp and at full extension it toppled over. So a quick redesign of the base was needed. I carved out the inside with drills and chisels, and filled it up with molten

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3D printing a pattern for sand casting

3D printing a pattern for sand casting

In Model Engineer No 4329 July 2008 there was a set of plans by Jan Ridders for building a coffee cup stirling engine. I liked the model but had some ideas for adapting it to make it a little more

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