In this video we demonstrate the four most common ways to cut acrylic sheet also known as perspex acrylit.
How to cut plastic sheet circle.
Mount the plastic on a disc sanding mandrel.
Line the plexiglass sheet along the cut line.
However you can t use the floor as you need an edge to break the acrylic over later 2 x research sourcestep 2 mark your line.
Hope this helps a bit kurt.
I recommend using a circular saw jig or a circular saw guide to keep your cuts straight and to prevent the blade from wandering.
Install a 7 1 4 plastic cutting saw blade in the circular saw.
How to cut circles in plexiglass step 1.
Begin by deciding where you want to cut the acrylic.
Leave the backing paper attached to the sheet while you are cutting.
To make it easier to work with find a flat surface big enough to accommodate your plastic sheet.
It s very easy u don t need any expensive tools.
I use this not only to cut circles in plastic but also in sheets of solid color decal film to duplicate the thin warning circles found around modern naval weapons.
It will reduce scratching and splintering.
Secure the dremel to your work bench then turn it on the lowest speed available.
Drilling holes in acrylic.
You can actually stack several on there and cut em all at once.
Place the acrylic sheet on top of the rigid foam insulation and mark the line to be cut.
Measure it out and use a ruler to make a straight line.
Either clamp it or have someone hold it in place.
Continue until you ve scored a deep line in the plexiglass it may take as many as ten or twelve scores then turn the slab over and repeat the process.
Use a forstner bit.
You can mark the line with a permanent marker or grease pencil or you can just use the ruler as a guide for your.
Measure the ruler against the cutting line and then draw the knife repeatedly down its edge gradually increasing the pressure with each pass.
Drill a hole in the plastic and cut it roughly to shape but a bit larger than the desired size.
Mark your desired cut line using a straight edge then score the sheet of plastic with the utility knife making several passes until you.
Secure the plexiglass sheet to your work surface.
Use the saw at a slower speed or keep the material cool by spraying water over the cut point during the saw operation.
Fit a circular saw or table saw with a fine blade with crosscut teeth to prevent chipping the piece during the cut.
Cut the larger of the two steps off and you will find that the second smaller step will fit nicely into the drafting compass.
