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- 05-September 10
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- Dec 03 2012 08:39 AM
Posts I've Made
Posted 20 Nov 2012Are you simply using a combination of the programmed "rates of climb" on the various segments and the "desired end point" to project this time? Or are you attempting to model actual kiln performance parameters?
I ask becasue I am working on a similar piece of software that models kiln thermal parameters as well as they can be addressed.
That was not the intended purpose of this program. But I suppose you could use it as such. If you calculated a program to take 16 hours to fire and it took 20, then you'd know something was up. It wouldn't be of much help identifying what the problem was... just that it was there.
Are you familiar with the term "ramps?" The calculator does display the time needed to complete each ramp, so that information could be useful in identifying an issue. Say if everything was fine, ramp 1 and 2 completed on time, but ramp 3 was either way too early or took too long... I guess I'm just not experienced enough to really know what to do with all that information.
Posted 20 Nov 2012I'm not sure I understand exactly what your calculator would do, but if you're not familiar with it, you might be interested in Orton's Cone Calculation Program. It's an older piece of software, available free from the Orton website. (It's Windows-only as far as I can tell - personally, I would love to have access to something like this that was web-based and/or could be run on more modern operating systems, including ios.)
Here's how Orton describes the software:
The Cone Calculation program was developed by Orton to provide customers with more options for using cones to quantitatively monitor and control firings. This write-up describes the program. If desired, print it for reference. Input cone number, bending angle and firing schedule to determine equivalent temperatures for Orton Pyrometric cones. This program can be used to:
· Determine Cone Equivalent Temperatures................
Yeah, the calculator doesn't have anything to do with cones. It calculates the time needed to complete a firing schedule and it allows the user to figure out the approximate time the kiln reaches a desired temperature. I used this program in my college studio to determine the time to shut the lid on the kiln, but what I've found out is that most hobbyists don't manually vent their kiln. Either they just don't do it, or they have some kind of venting system installed to where leaving the lid open is not necessary.
I was taught that leaving the lid slightly propped open until 800 degrees can save the life of your elements. Just a few inches... it allows carbon and other materials burning off of your greenware or glazes to more easily escape the kiln and are thus less likely to attach to the elements. This is just what I've been taught... but maybe the added energy cost of propping the lid open negates the benefits.
I just wanted to, more or less, find out if anyone could think of additional uses for calculating the exact time a kiln reaches a certain temperature. ....... Maybe I'm over-thinking this........
Posted 20 Nov 2012Wow, that's a lot of good information! Sorry it took me so long to reply, this project kind of got put on the back burner... It sounds like for the most part it's not super helpful, but maybe someone will find a use for it or maybe something unexpected will surface. I know that I'll use it when I do finally get my kiln installed.
It is intended to be a free web tool, not sure when or if I'll be able to make it an app, but it was programmed to work on an iPad/iPhone in the web browser... we'll see how the webtool works out and I'll make sure to let everyone know when it's available.
Posted 13 Oct 2012I think most potters use the same programs to fire all the time, so they calculate it once and thereafter they know.
The potters who change the program usually know how to work it out.
That said, I think some will find it useful.
I figure seasoned ceramicists probably don't need a tool like this, but it might be really useful for people who are super busy and need to calculate a specific time to handle a programmed kiln, or someone who's not good with math and want to make sure they are available to shut a kiln... I think this would be a good tool for a University or community studio setting.
Basically, I'm trying to get more feedback before my site goes live. It's actually up and running now, but I'm still tweaking the design and features. We're also working on a reverse calculation tool where you tell the program when you want to shut the lid, and it tells you exactly when you need to start it.
I'm hoping that other uses will arise from this tool... perhaps experimenting and testing results can be better documented or calculated. Don't know yet...
Posted 25 Sep 2012Yes! Georgies is fantastic. If you head down to Salem at all, there is also the Willamette Art Center (http://willametteartcenter.com/).
- Member Title:
- 26 years old
- October 1, 1986
- Monmouth, OR
- Aside from being a ceramic enthusiast and student, I enjoy film, music, fine wine and food. I also enjoy volunteering at various art events.