Electric Kiln Controller

Arduino Uno Rev3

Wanted to get into glass fusing and decided to build my own digital controller based on a Arduino UNO. The program has these features:<ul ><li >Unlimited firing schedules stored on a MicroSD card</li></ul><ul ><li >Each schedule can have up to 20 segments. Each segment has its own ramp rate, target temperature, and hold time.</li></ul><ul ><li >Control up to 3 zones</li></ul><ul ><li >Fahrenheit or Celsius temperature scales</li></ul><ul ><li >PID loop control of heating elements</li></ul><ul ><li >Temperature logging to file on MicroSD card for analysis</li></ul>Started by purchasing an old Knight model #82 kiln on Craigslist.<figure><img src=https://projects.arduinocontent.cc/08d0d3a4-0d0c-49dd-a654-a3161a7431f7.jpg /><figcaption> </figcaption></figure>Removed the manual &#34;Kiln Sitter&#34; controller and one of the sections. Wound new heating elements and added them to the sides and the lid (glass does better with heat from the top).<figure><img src=https://projects.arduinocontent.cc/05b255fb-bc5e-4df2-9b82-454d2cefa9b6.jpg /><figcaption> </figcaption></figure>Built a electrical box from some sheet metal.<figure><img src=https://projects.arduinocontent.cc/543eca7f-04b5-417d-90e2-e9cb32e7cb48.jpg /><figcaption> </figcaption></figure><figure><img src=https://projects.arduinocontent.cc/33cc2838-d08b-40ae-88ab-20afc1585f40.jpg /><figcaption> </figcaption></figure>

Electric Kiln Controller

Upgrade old manual kiln to a digital controller with firing schedules (ramp, target, hold) and data logging.