Potters Round Table: Firing Schedules
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- Опубликовано: 5 фев 2025
- Welcome to The Potter’s Round Table, in this episode we discuss Firing Schedules.
Firing schedules, also known as firing programs and firing curves, are plans for controlling a kiln firing which specify the heating rates and the intermediate temperatures to follow to the final temperature. There are several different general types of schedules for different purposes, although the details can vary a lot depending upon the type of clay, the size of the work, the type of glaze, and the type of kiln, etc. In this discussion, we’ll describe the general types and some guidelines for bisque and glaze firings.
The Potters’ Round Table is a production of Washington Street Studios. As a result of the pandemic the Round Table is hosted as a RUclips livestream event and then edited to be added to our video library.
The Potters’ Round Table is brought to you by Washington Street Studios, a community pottery studio, gallery, and pottery school located in Harpers Ferry / Bolivar, WV. We exist to provide ceramic artists an affordable, fully equipped studio space for aspiring, emerging and established artists to share their creative energy and knowledge in an environment designed to support the ceramic artist. If you want to learn more about Washington Street Studios, visit our website at www.hfclay.com/.
At Washington Street Studios, we believe the sharing of creative energy and knowledge will improve the quality of our art and increase the appreciation of art within our community. We are striving to create an environment where the arts are shared and appreciated. We want to grow as a family of artists and contribute to our community.
This video is one of our steps to share our passion for the ceramic arts, creative energy and knowledge with other artists and art lovers. We also created an audio version to expand our audience. If you are looking for the podcast of our show search for the ‘The Potters Round Table’ on your podcast platform of choice or go to anchor.fm/thep....
Another amazing video. Thank you so much for passing on this valuable knowledge!
We appreciate the encouragement!
Thanks so much Phil. Your videos are so informative and helpful. Exactly the info I was looking for before firing my new kiln. 😀
It's great that you found this useful, unfortunately, Phil passed away in July. This is a great legacy for him!
If you have any questions when firing your kiln, just ask and we'll try to find answers. Keep watching!
Muchísimas gracias! Estos videos son una tremenda escuela! Invaluable! Gracias!!
De nada! And that is all the spanish I know! Really glad that you find the videos a valuable learning experience, please share the channel with your friends and fellow potters.
Wow! A wonderful addition to an already precious collection of awesome video lessons! Truly exceptional+
Thanks Pooia, some might think we pay you for your comments! We do appreciate the encouragement and kind words.
@@WashingtonStreetStudios I see your point! :) But indeed, to give you a positive feedback is the least I can do. And I always look forward to your next video~
Thank you! I really needed to this to fully understand schedules.
Betsy, we are happy you found this information useful. Share the channel with your friends and fellow potters and help us grow our community.
Thank you so much sir for your efforts
Thank you for the encouragement, I hope you enjoy all the videos!
Holy cow! I know you are a master potter but the firing schedule for the manual kiln seems overkill. I say that because i have thw same type of kiln with a low med high setting. Its a Paragon. Im running it off a generator and i have to watch it because the generator sometimes dies. Runs out of gas or something else. So i cant afford to leave it running all night on low with it all propped open. My glaze firing is 7 hours 45 minutes about. 2 hours on low 2 hours on med and the rest on high until done. Ive had excellent results unless I overfire it and dont watch the cones like a hawk. But even then i really haven't had many issues. Im firing with light clay, red clay and brown clay. No pin holes. The red clay isnt playing nice and its not ending up red but i think it might be something else and not my schedule. The biggest issue ive had is the kiln shutting down because of the generator stopping. Then i start it again and keep on going.
Thank you lads for another well presented and informative lecture 👍
Thanks Mossey
Phil -- a topic suggestion for the Round Table or for Pottery Shorts: Flocculation and Deflocculation, what is it, why is it important, how to determine, how to increase/decrease, its relation to specific gravity. (Keep up the good work!)
Rick, Thank you for your suggestion and continued support! I've forwarded this to Phil and we'll put it on the list for a future topic. I think it's a good one as well!
Question ...can you refirecpieces whose glaze is under fired
Yes, I do it all the time! There is a lower success rate, for me anyway, but it does work often.
Very informative thank you
You're welcome
Food for thought as I work out a schedule for firing to ^04 for bisque. Pretty sure I will be adding a hold at the end and using that puff of air to see the cone status, without putting my beard at risk. Thanks for sharing.
Cheers and be well...Freddie
Thanks Freddie, always good to hear from you!
Once again thank you so much for the outstanding video. Exceedingly informative and explanatory. Request you to make some video of casting slip, it's properties and the parameters to be controlled while preparing it. Role of deflocculants like sodium silicate and sodium carbonate. Do we require both sodium silicate and sodium carbonate, if yes, why and how to determine their proportion? Why casting slip tends to gel if left standing for some time. Is this tendency for gelling a desired property? How to control the gelling tendency?
Bishwajit Ghoshal, I've forwarded your question to Phil and will post his response.
@@WashingtonStreetStudios Thanks
Thank you for these wonderful videos, extremely informative and greatly appreciated. Any recommendations regarding cooling cycles for midrange glazes?
Gus, Thank you for the encouragement! Is there a problem you are trying to resolve? Are you experiencing defects? Are you trying for special effects? What type of kiln?
If you are firing an electric kiln to midrange, just let it cool after it shuts off. The pots should be cool enough to comfortably hold in an ungloved hand before you unload.
Let us know if you are trying to fix a defect or achieve a special result.
@@WashingtonStreetStudios thank you for your speedy response. I fire cone 6 electric Kiln master skutt. I just want to play with cooling effects to get varied results from the glazes. Just curious if you recommend any advice on cooling cycles.
I like what you class but I don't andstand very well English. If I speak English very well ,I like going to the schedule table class .thanks for you help me to enternett.