bullseyeglass.com • View topic - Scaling up the work - suggested Firing schedule

Scaling up the work - suggested Firing schedule

For discussion of processes related to using Bullseye glass, including kilnforming and kilncasting, torchwork, blowing and stained glass.

Scaling up the work - suggested Firing schedule

Postby helenc » Sat Feb 23, 2019 8:02 pm

Greetings all. I am planning on scaling up my frit cast pieces (image attached they are about 1.5-2.5" tall .5-.75" in diameter) to 3-4" in diameter to about 12-24" tall. My current firing schedule is as follows:

300°F / hour> 1000°F - hold for 00:30
300°F / hour> 1375°F - hold for 00:20
AFAP> 900°F - hold for 01:30
100°F / hour> 700°F - hold for 00:00
cool naturally

I am casting them in steel tubes vertically with side elements instead of the top elements in a 14" x 6" round kiln.

Because I am using frit, how would I guesstimate on the annealing times for the larger scale pieces? Does it make any difference that I am using frit? Am I allowing enough annealing time currently? I want to make sure I am doing it right.

Any suggestions on a schedule are welcomed.

Thanks!

Helen
helenc
 
Posts: 32
Joined: Wed Oct 12, 2011 3:39 am

Re: Scaling up the work - suggested Firing schedule

Postby marykaynitchie » Mon Mar 11, 2019 3:20 pm

It seems like we had some forum members trying this a few years ago. I will see if I can locate those posts.

Mary Kay
Mary Kay Nitchie
Bullseye Glass Co.

Subscribe to Bullseye kiln-glass videos at
bit.ly/BullVideos
marykaynitchie
 
Posts: 1205
Joined: Thu Oct 13, 2011 5:39 am

Re: Scaling up the work - suggested Firing schedule

Postby marykaynitchie » Mon Mar 11, 2019 3:28 pm

See if these help:
viewtopic.php?p=2057

viewtopic.php?p=9768

Mary Kay
Mary Kay Nitchie
Bullseye Glass Co.

Subscribe to Bullseye kiln-glass videos at
bit.ly/BullVideos
marykaynitchie
 
Posts: 1205
Joined: Thu Oct 13, 2011 5:39 am

Re: Scaling up the work - suggested Firing schedule

Postby helenc » Wed Aug 14, 2019 12:28 pm

Thanks Mary Kay!
helenc
 
Posts: 32
Joined: Wed Oct 12, 2011 3:39 am


Return to Technique

Who is online

Users browsing this forum: Google [Bot] and 1 guest

cron