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About kennyd67

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  1. Hello!
    I read that you have a HC8 thermocomputer, just like me. I am completely new in the world of ceramics and it is my first oven, but it does not bring instructions because it is second hand. You can help me use the programmer for the first time. I want a slow cycle for low clay. if you could help me, it would be very helpful.
    a greeting.

  2. kennyd67

    finished work

    Here are a few of the pieces I have worked on lately
  3. I use distilled water to thin down Mayco glazes. I have not had any problems with doing this and actually prefer a thinner glaze to work with some times.
  4. Well, we did another firing and have the following observations. First we verified the the programming before and after starting the kiln, everything was programmed correct. Next I had programmed in a 10min soak at 121 c and the kiln reacted properly when reaching this temperature. During the 10 minutes we could hear the kiln start and stop several times as it reacted to keep the temperature near the soak level. From there the kiln ramped up at a very consistent but fast rate to my target temperature of 1060 c and beeped to let us know it was ready. Noticeably it did not shut off yet, because it ramped up as quick as it did I decided again to let it run to 1076 c to make sure the work was done. Reading information from the manufactures catalog makes it seem like this kiln and computer are just designed to speed up the process and so far it seems to know what it is doing. If I do not have any problems with my glazes and I can can get consistent results with a 5 and 1/2 hour firing then my electric bill says thank you. Pictures may be uploaded of some of the pieces after my glaze firing.
  5. thanks for the info Smallshop. How would I be able to test the relay? and also how could I fix it if that is the problem?
  6. Well, everything survived! now just hoping I will not have any issues with the glaze pitting, bubbling or cratering. The pieces are definitely bisque now, just not sure if enough gas escaped during that fast of a firing. Only 5 and half hours, if that worked and I don't have problems with the glaze then maybe that HC8 is smarter then I thought.
  7. We did not use witness cones, probably would have been a good idea. We do know that the kiln reached temp yesterday because the glass bottles slumped just like normal. Also the computer beeped when it achieved my target temp, however it appeared to completely ignore the programmed profile to get there and also continued to rise in temp until I shut it off. It really just looks like it ran at full power all the way up. I do not know what the pieces look like yet, the kiln is still cooling and I wont be able to open it until the morning.
  8. we did review the program and everything appeared correct. The manufacturers website is not very helpful, I may have to call them directly to see what went wrong. This is actually the second time it happened to us, the first was with some glass bottles we were slumping so it did not really cause any issues. Crossing my fingers that my pots and bowls are still intact. The kiln and the computer are a matched set so I have to believe that the computer is designed for the type of thermocouple in the kiln. Right now I have to put any further ceramic firings on hold until I figure this out. I still have several pieces ready to go, guess they sit on the shelf for awhile.
  9. the slow profile would be a custom set of ramps, was looking for a maximum ramp of only 70 degrees C or about 158 degrees F per hour. Instead of this the kiln fired at a rate of about 350 degrees F per hour. Waiting for it to cool down to see if anything survived.
  10. I have an electric kiln with a hobbyceram HC8 controller. We have programmed the HC8 for a slow profile to cone 04 but the kiln fired at full. It rose to 1060 degrees C in only 5 hours, or about 176 degrees C per hour. I had programmed the system for only 70 degrees C per hour. does anyone know what caused this and what we can do to fix this from occurring in the future? I am not sure if anything survived this firing, hoping for the best but this was a very fast firing.
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