baxters

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  • #12219
    baxters
    Participant

    Please review my firing schedule:

    200/1000/15-I want to go as slow as possible so it won’t break.

    200/1250/30 to make suree all glass is at the same temp

    300/1500/ 4 hours long hold to allow glass to move to same thickness

    9999/900/2 hours

    50/800/00 for a slow cool down

    100/400/00

    off

    OR

    200/500/00

    250/1000/00

    300/1500/4 hours

    I’m still not sure if i should have a hold time 1250.

    I’ve cleaned it, flipped it(placed top side on the shelf, and leveled the shelf . Ready to fire. I will to hear your comments on the schedule though!

    Thanks again. And I am keeping a log. Susanne

    #12217
    baxters
    Participant

    I had one pot in the center as well as two on either side- I center pot was large enough to hold the amount of glass I needed. Before I fired I was concerned about that.
    I now understand the need for a slow advance and how you came up with that.
    3 more questions:

    Can I do this on thin fire paper since I am firing to 1500 or do I need to prepare the shelf as I did for the pot melt?

    Do I need to go on and remove the kiln wash that is on the underside on the piece?

    Do I need to dam it again? ( I think yes). I am so afraid to fire that thick a piece w/o one and I have never done a pot melt w/o one.

    My firing schedule for this piece was
    600/1000/20
    250/1100/20
    450/1700/90
    9999/1540/45 then to 900/120 and a conservative cool down

    The first two this week have alot of popped bubbles on surface, not over an 1/8 diameter. Do I refire with top side up to a full fuse1500 with a dam? Using thin fire or heavy kiln wash? Thickness 1/2 inch.
    Or do I flip it over and fire to 1500. I would guess at a soak of 30 min
    The need to redM is always confusing to me. Thickness again is 3/8 on one and 1/2 on the other

    The firing schedule on the ” bubbled” pieces were pretty much the same except 700/1700/90 & soaking at 1500/60

    I really appreciate your good explanations and advice. It is nice to know these forums are here and people are so willing to take the time to answer these questions.
    Thanks
    Susanne

    #11658
    baxters
    Participant

    Do you think I need to soak at 1250? I was hoping to flip it and refire w/o a dam and w/o a soak at 1500. Is this a possibility?

    Thanks for your help.

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