Motor stirling

Can Stirling engine plans

These instructions will help you build your own drinks can Stirling engine.

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1

Use a can opener or knife to remove the top from a can. Cut around the can, just below where the inward bevel starts.

You'll need a container for the water cooling jacket. Tuna tins are ideal for this, but you can use any heat proof container that will hold water. Cut a hole the tin big enough for the drinks can to fit through.

Turn the drinks can upside down and slide the tuna tin over it. Use a general purpose silicone sealant to make the joint water tight.

2

This can should be the same brand as the tin you used to make the displacer cylinder. Use a can opener to remove the ring pull part from the top of the can

Drill an 8mm hole in the base of the can. This will be for the nylon tube.

Tape the top can template around the can. Pay attention to the position of the arrow. It must line up with the 8mm hole.

3

Pierce through the two hole for the crankshaft using push pins. These holes won't be big enough for the crankshaft so you'll need to make them bigger using a small piece of the steel rod.

Use a 4mm drill bit to drill the two holes for the angle bracket.

Pierce a hole in the centre of the viewing hole so can start cutting the hole out using tin snips.

4

Cut a small piece of the nylon tubing, around 25mm (1”) long. Push it through the 8mm hole in the can.

Turn the can over and seal around the nylon tube using epoxy resin. You'll need to hold the can at an angle to stop the epoxy running into the centre of the can.

Once the epoxy is set, you can bolt on the angle bracket using the M4x12 screws.

5

Dismantle three of the terminal block and drill a 2mm hole in two of them. The third one is for attaching the flywheel

Form the displacer crank arm, the dimensions are along side the templates. You'll need to add the heat-shrink and electrical connector as you bend it.

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