An important point that you should take note of is that the way in which you machine and cut your acrylic sheet will have a profound effect on the time taken and the ease with which you can clean and polish the acrylic edges.
Sanding acrylic sheet.
Once the sheet has been scored clamp the acrylic on a table edge so that the table edge aligns with the scored line of the sheet.
Step 1 preparation.
Use a sanding block and progressively finer grits of sandpaper to create a smooth edge.
Step 7 continue moving up to 800 grit wet sandpaper.
Wear a respirator mask as well to avoid inhaling any particles as you work.
Finish sanding with 600 grit paper to give the acrylic a lasting shine.
Rinse the acrylic with water after sanding.
How to cut acrylic with a jigsaw.
Sand the cut line.
Make sure you sand your plexiglass in a clean room on a drop cloth to catch the small pieces of plexiglass that you will be sanding off.
Rinse the acrylic after each sanding section.
Sanding acrylic takes time so don t get frustrated if the material doesn t get polished right away.
How to sand an acrylic sheet by kenneth coppens.
The higher the grit of the sandpaper the finer it is.
With a foam sanding block start with rough paper 180.
Using a higher grit of sandpaper will make the acrylic shine even more than it already did.
To make things easy use a rubber or foam block and waterproof sandpaper.
Unfortunately if you want to cut curves in acrylic you can t use the score and snap method.
The cut line may be sharp and uneven after snapping the acrylic sheet.
Sawing or cutting acrylic will leave the edges rough and serrated and you may be compelled to want to smooth these over.
Once you confirm the clamp is secure apply pressure to the piece of sheet that is hanging off of the table until it breaks off.
Always also wear gloves and plastic goggles to protect your eyes and hands from the plexiglass.
When using the acrylic as a window on a speaker enclosure or for an amp rack you ll probably want to polish the edge.
When using 360 grit start wet sanding.
Sand until the edge is uniform and relatively smooth.
Switch to fine then finer paper 360 and 600 grit to get a satin finish.
If the cut was deep enough into the sheet there will be a clean edge.
Break the acrylic sheet.