How to Cut Plexiglass by Hand | HowStuffWorks
22/6/2011· If the plexiglass is less than 3/16-inch, you can cut it by hand. First, place it on a clean, flat surface to prevent scratching. Now, take your measurements and use a glass cutter to score the plexiglass five to ten times along the cut line. Then turn the piece of plexiglass over and score the marks from the other side.