cut­ting old glass

Old House Journal - - Salvage It -

1. PREP GLASS

There’s an art to cut­ting old glass, in­clud­ing wire glass. It can be learned. As with any project, start with the right tool. In the case of wire glass, you must have a very good glass cut­ter tool, such as a Red Devil. Pol­ish the glass first with a wa­ter-based abra­sive cleanser like Gump­tion to in­duce mi­crofrac­tures, which en­cour­ages the glass to crack along the track of the cut­ting wheel.

2. MARK + CUT

Take a Sharpie to mark where you want to cut, us­ing a straight­edge to make sure the line is even and straight. Lubri­cate the glass be­fore you be­gin (WD-40 works well) to make sure the cut­ter wheel spins smoothly. Then score the glass by firmly rolling the glass cut­ter across the glass in one cut—don’t stop and start, and be sure to use steady but not ex­ces­sive pres­sure. Lift the glass and tap along the op­po­site side of the score line with the knob of the cut­ter un­til a crack ap­pears. Then con­tinue ev­ery few inches to make a se­ries of cracks. When you have a com­plete line, take the glass with two hands (wear­ing pro­tec­tive gloves) and break the cut piece off with a sharp snap of your wrists. You can snip off any ex­tra wire along the edges us­ing wire cut­ters.

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