Karl Harron 3 step mold

[S.TImmerman]

http://www.creativeceramics.eu/docs/slu ... _steps.pdf[*]

My glass made it to the third step. 65 deg an hour ? Really?

Could some very generous person look at this schedule and decipher it for Americans?

I'm guessing "skip" means 9999.

Please I would be forever great full

Thank you

[Brock]

There's a TEMP and RATE conversion implement directly under the sponsor list.

[Brad Walker]

If you look at the top of the page, there is a Celsius to Fahrenheit conversion. Use the one on the left for temperature, the one on the right for rates.

For example, Harron's first segment of the 3rd stage slump is:

45C dph to 538C hold 25 minutes (you can ignore the Time column in the chart)

45C is a rate, so use the rate calculator at top right. Put 45 in the C box and click on submit. You'll get 81 F.

538C is a temperature, so use the temp calculator at top left. Put 538 in the C box and click on submit. You'll get 1000F.

So, after the conversion, the first segment of the 3rd stage would be:

81F to 1000F hold 25 minutes (the hold time doesn't need to be converted).

Just continue on with the rest of the schedule the same way. And yes, SKIP means 9999.

(By the way, if you use the schedule on a hot day, it will never finish! Same is true of some of Bullseye's schedules. You get extra credit if you can tell me why.)

Hope this helps.

[twin vision glass]

I love these molds so very very much. I have been firing with a simple firing schedule that is :
50 deg. F. per hour up to 1240 F. It is usually done by the time I keep eye balling it . Love this system. Les
P.S. I did one that actually stretched abit to one side and loved it so much I ground and polished the top edge to enhance the stretch and then set on stand that was also off center . I seem to never do things perfect so I love to go with what happens.
P.S.S. not sure Brad so I guess I win nothing this fine morning.

[Tammy Macdonald]

(By the way, if you use the schedule on a hot day, it will never finish! Same is true of some of Bullseye's schedules. You get extra credit if you can tell me why.)

Hope this helps.

EASY PEASY, if you live closer to the equator. 30° C = 86° F and 40° C = 104° F... "room temperature" in my garage is higher than that in July in Texas, at least that's my guess!

[Brad Walker]

(By the way, if you use the schedule on a hot day, it will never finish! Same is true of some of Bullseye's schedules. You get extra credit if you can tell me why.)

Hope this helps.

EASY PEASY, if you live closer to the equator. 30° C = 86° F and 40° C = 104° F... "room temperature" in my garage is higher than that in July in Texas, at least that's my guess!

A+

[twin vision glass]

Glass Bowl with Wood Basejpeg.jpg (69.57 KiB) Viewed 11201 times

NOT a great photo but the vessel has a nice stretch to it.

[Nikki ONeill]

Heat work; because it doesn't take as long to get there ?