The tip must scrape the acrylic not gouge it.
How to drill holes in acrylic sheet.
The cutter bit must also be modified to accommodate the material properties of acrylic.
Lay the 3 8 inch plywood on a firm flat surface that allows you to work easily and place the acrylic sheet on.
The gradually go up in drill bit sizes until you reach your desired diameter.
Buy a plexiglass drill or plexiglass drill bits that can be used with a regular drill.
Practice with smaller pieces of scrap acrylic before attempting to drill.
Here is a video on how to properly drill through acrylic plexiglass.
First you need to drill a small diameter pilot hole to get started.
Place the 1x4 inch piece of wood across the acrylic sheet and secure the plank to the top of the acrylic sheet.
Put on your safety.
Before you embark on drilling the main hole you should consider starting with a pilot hole.
How to drill an acrylic sheet step 1.
These bits have a different.
When you start the drilling process ensure that the hole is away from the edge of the plexiglass.
For optimum cutting with circle cutters consider the following recommendations.
To drill a hole in acrylite sheet greater than 1 25 4 mm a circle cutter may be used.
If you just drill a pilot hole then jump right to a big size bit you will likely crack the plastic.
The pilot hole should be at least 1 2 the diameter of the final hole.
This will avoid cracking which may damage the entire sheet.
Clamp or hold down the acrylic while you drill the hole.