Slight delays in the Super Kiln

The project is progressing nicely however a missing part in an order forced a delayed first firing. This also allowed me some much needed rest. Below are some progress photos and descriptions, for a complete list of photos the archive is up to date.

The kiln from the front where the doors will go. This image displays the inside and coils nicely, the total electrical load is 60 amps 208v three phase.

Connections between the coils and electrical supply are made by small copper lugs. This setup allows for easy and flexible attachment as well as eventual replacement. A total of 12 coils make up the heat source of the kiln, each one is individually run back to the load distribution center. This method while more difficult also allows for isolation of any coil. I am slightly concerned about the heating rates of a vertical kiln and the potential for more control within the kiln is welcome.

The load distribution is facilitated by two 30 amp mercury relays. I attached lugs to two sheets of polycarbonate for use as load distribution. This setup should keep wiring neat and easy to change later as needed.

All the pieces to the chain drive are cut and almost ready for assembly, The assembly consists of a gear reduced 115v electric motor, speed controller, two gear sprockets (1:1 ratio for now), chain and a slip bracket for tension. Eventually changes to speed and direction may be desired. Changing the gearing on the chain drive and adding a revers rotation switch should be simple.

Monday should be our first real test fire and Tuesday dropping our first glass. While building this Super Kiln I have labored to keep things as flexible as possible. This allows for alterations, additions and need be fixes. The necking device is next on the build list and it will be fancy.