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Best way to cut corrugated plastic? Answered

On the day after the elections, I collected a bunch of corrugated plastic political signs that were going to be recycled. My plan is to turn them into a small geodesic dome, similar Nasa’s Hi-Seas dome for my daughter to conduct scientific missions in the backyard.

Is the easiest way to cut these signs into the necessary triangles with a razor and a straight edge? Can I use a circular saw or skill saw to cut them faster or cut multiples at once?

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