Once you ve scored the initial line go over it a few times with the blade until a groove forms.
How to cut acrylic sheet.
Routers can be used to cut acrylic for both curved and straight cuts.
For best results use another tool like the earlier mentioned table saw to cut your acrylic roughly before getting a more exact finish with the router.
Then score the line using a plastic scoring blade using the ruler as a guide so your line is straight.
To cut acrylic sheets start by marking the line you want to cut using a ruler and a permanent marker.
Place the sheet over hard edge with groove side up.
Use scoring knife to cut a narrow groove in the acrylic sheeting scoring preferably works on sheets less than 6 35mm in thickness.
Mark the area of sheet you want to cut.
Thicker plexiglass strangely enough allows for the simplest of the cutting processes.
Measure the ruler against the cutting line and then draw the knife repeatedly down its edge gradually increasing the pressure with each pass.
Use a 7 1 4 plastic cutting saw blade to cut acrylic with a circular saw.
Use a 10 plastic cutting saw blade to cut acrylic on a miter saw or table saw.
First grab a metal ruler and a utility knife preferably one with a brand new blade.