Firing schedule with 4 firing cycles

[kathymc]

Hi everyone,

I’m so happy that I found this site!

I have a Sierra kiln 8″ that I use for PMC. I’m excited to try glass fusing in it, but the schedules that I’m finding all have more than 4 firing phases. My kiln only has 4, and I’m trying to get it right! I’m using  90 and 96 glass. My pendants are still coming out bumpy, and I’m not getting anything to slump! Any ideas? Thanks so much for the help. Kathymc

[wordana]

Post your firing schedule and we might be able to help. For small pieces, four segments should be fine.

 

Dana

Jester’s Baubles Fused Glass Designs

http://www.jestersbaubles.com

[kathymc]

Thanks for your help Dana. 2012-10-21

Ramp                         Goal temp.                        hold   

R1 300 degrees         1150 degrees                    30min.

R2 500                        1475                                 15min.

R3 9999                      1150                                 10 min.

R4 500                         960                                  30min.

For Slumping a soap dish, I tried the following twice!

R1 400                         1000                                 20min.

R2 400                         1250                                 60min.

R3 9999                        950                                  60min.

R4  400                         100                                    0min.

Kathy McAlerney

[wordana]

I wonder if your kilns is firing cooler than you think. The slump schedule looks fine to me — I typically hold at 1100 on the way up, increase the temp slowly to 1225 or so, and often times my pieces are slumped by the time they hit the top temp (so 60 minutes is LONG). The fusing schedule has an unnecessary hold at 1150 on the way down (IMO), but that should not cause the pendants to be bumpy.

Dana

Jester’s Baubles Fused Glass Designs

http://www.jestersbaubles.com

[kathymc]

Thank you Dana for your help. I am going to keep tweaking the schedule a bit. It’s almost perfect on my pendants. Still can’t get a soap dish to slump, but I will eventually! Sure appreciate your help.

Kathy McAlerney

[bookie13]

I have a tutorial on my web site that discusses and simplifies fusing for small pieces. many people get confused thinking the schedules posted for larger pieces are good for pendants. Not true. Size does matter.

Check it out

Barry Kaiser

Web Site    http://www.kaiserglass.com

Glass Classes:   http://www.Kaiserglass.com/classes.html

Tutorials      http://www.kaiserglass.com/tutorials.html

[kathymc]

Thanks so much. I’m going to your web site right now!

Kathy McAlerney

[Author]

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