How to Make the Simplest Metal Foundry

How to make a metal foundry that works with gas. Copper melting tested! More than 1000°C(1832ºF)! This design I think is a well balanced price/resistant/workforce. Own design inspired by @thekingofrandom and burner inspired by the @ChemicalKevy

Danger!! In the video is tested using a flame but leave this method to experts because in case of leak you should be ready to blow fast and strongly or/and cut gas supply quickly. You could be serious injure if you try this method.

We will see all materials and building process on how to make a homemade mini gas metal foundry. This is the cheapest and resistant foundry you can possible make.

We try the foundry melting aluminium witch it melting point is 660,3ºC (1220,5ºF).

You will need the following material.

12L (3,17 gal) iron bucket

10 Kg (22 lbs) Refractory concrete

5 Refractory bricks

25cm (10 inch) diameter iron tube

8mm (3,15 inch) diameter iron tube Butane Repsol gas tank

Butane tank connector

Butane tube clamp

Leaf blower Crucible

Make a 25 mm hole in the fireproof brick. It has to make with a 30 to 45º angle.

Cut a brick in half for the button of the foundry cavity

Place the brick to find the spot to make a the hole in the bucket. First make a small hole in the bucket and then make the 25 mm hole.

You can watch this two video to see how to prepare concrete. But you should use fireproof concrete.

Wet the bricks and the bucket

Make a concrete basement

Put the half brick in the basement and put concrete on the corners and borders

Mount the brick structure and fill it with concrete. You must put first the intake tube. 25 mm steel tube

Use a pan or similar to make a cap. I place a glass in the middle for the ventilation hole. Also it is a good idea to put two handles

Flatten the tip of a 8 mm iron tube to reduce the gas outtake

Use a screw clamp to attach the 8 mm tube to the gas connector

Test that there is not leakage between the iron tube and the gas pipe.

To do this, soak the junction with water and soap. Then close the pipe exit hole with your finger and open gas. If you do not see bubble making, there is no leakage. Otherwise, you need to adjust the junction.

Danger!! In the video is tested using a flame but leave this method to experts because in case of leak you should be ready to blow fast and strongly or/and cut gas supply quickly. You could be serious injure if you try this method.

Test the flame

Wait 2 weeks before using the foundry at least

Cut the intake tube to 30 to 50 cm long

Heat up slowly the foundry but without extra ventilation

Put the blower and make your first casting!