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  • Mudcat15 commented on Crafts with Ellen's instructable Resin USB Drive3 months ago
    Resin USB Drive

    I used to work for scientific instruments company, and we would seal sodium iodide scintillators in open ended metal housings using epoxy resins. Air bubbles were a problem, but we would get rid of them by first putting the pourable resin in a vacuum. The bubbles would come right out.

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  • Mudcat15 commented on bekathwia's instructable Soldering Clean Wire Splices9 months ago
    Soldering Clean Wire Splices

    I don't have a hot air gun, so I fold a layer of aluminum foil over top and bottom of the heat shrink tubing before using a small flame. No soot, and seems to work better.

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