help with fusing problem

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  • #10038
    lorin
    Participant

    Help, please! I don’t understand what is going on with the glass. I made a sheet glass / frit piece, put it in a full fuse, cut it up into tiny pieces, ground them to shape and refused on a full fuse. Although they shaped beautifully the grind marks remained on all of them. You cannot feel the grind marks, just see them. This happened before at a glass class and the instructor just shrugged and said it was probably the glass. I use only 90. This is my glass and hers was a different source so clearly it is me. All 40 pairs the I touched with the grinder show the marks. I have no idea where I am screwing up. The larger items are not showing the grind marks. Please please help. Thanks!

     

    #13088
    wordana
    Participant

    Here are multiple suggestions:

    Could be that you are not cleaning the edges well enough after grinding. After grinding and before cleaning, put them in a bucket of water to keep the grinder scum from drying on the cabs, and then scrub the edges really well when cleaning.

    Also, make sure you are using a fine grinding bit.

    If you are firing on “thinfire” try kilnwash. Many people report devit when using ThinFire when using Bullesys glass (oh! the irony! ;)). Personally, I have rarely seen this problem, but I use Sys96.

    If you are cutting ThinFire for each cab, but you have a fairly large ThinFire “margin”, the TF can curl up during firing and stick to the edges.

    Dana W.

    Jester’s Baubles Fused Glass Designs

    http://www.jestersbaubles.com

    #13089
    lorin
    Participant

    You  are brilliant!!! I followed your instructions, ground away the distortions and scrubbed them really clean. It is about 90% gone. I am going to order a finer grind bit as soon as I see a sale. Thank you so much!!!

    #13090
    wordana
    Participant

    I don’t know about “brilliant”, but I’m glad it helped.

    Dana W. :)

     

    Jester’s Baubles Fused Glass Designs

    http://www.jestersbaubles.com

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