I have just bought one of those plastic psu covers and need to make a 80mm hole and was wondering what is the best technic for doing this? I have a dremel, jigsaw and a few hole saws if that helps
use a holesaw it is the only way to do it. Go slow to prevent yourself from breaking the plastic. Lube up the blade so it doesn't heat up and melt the plastic.
its not the only way you can drill a ring of holes wth a standard drill and then join them with a coping saw, then you clean them up with a rounded file and some sandpaper
If you have a holesaw that is the correct dimension, use it. If not, the dremel will do it nicely, just take it slow and use the reinforced cutting discs.
Not if you take it slow. Even if you pick up the speed some (keep it realistic) a little melting wont hurt...you just get these little balls of plastic scattered around, but the holes shape is fine.
hey shadow what was the name of your avatar?from buck rogers right?didnt he go sumptin like beedee beedee beedee...lol......havenbt seen that in so long
hole saw use the hole saw, make sure it is locked in your drill really good. start by drilling the pilot hole in fwd then use reverse to cut the hole. make sure you secure the plastic in place. if you have a drill press use and cut slow. let the saw blade cool and start again, this will prevent the saw from catching and screwing up your plastic. and make sure you have a sharp blade . that is how you cut siding and all kinds of plasic.
no way could you cut a good blowhoel in plexi with a dremel it just doesn't work like that. Believe me i have tried. A holesaw is the only way to do it. tbh.
You might also be able to use a large drillbit - mark your circle, drill a hole somewhere in it, then use a jig saw to cut the shape out.
Dr. Theopolus and Twiggy...not sure of spelling. I couldn't remember to save my life, and was searching google when I asked my coworker. Without hesitation, he announced the names, immediately earning his Geek of the Year id card. And you can too do it with a dremel. Didnt say it was easy..takes a ton of patience. Although it might depend on the type of material you were cutting. Plastic is a very broad term...
you could cut plasic with a dremel, if it is the hardend plastic. soft plastic like the type used to fill a five and a quarter bay is usually pretty soft. the plastic used for a power supply mod is hard (the transparent cover dealy) if you started with a small hole and kept sanding it larger with a drum wheel you could do it.
Hole saw use the hole saw its the easiest and best looking if you do it right the others too much to go wrong and the hole saw will always create a perfect circle.
I prefer using a jigsaw with a scroll-cut blade. It shaves instead of bites and can cut acrylic and polycarbonate while still leaving behind almost flawless edges. Make sure you clamp the sheet down to a piece of plywood or something so you don't snag and crack the sheet. I solved the problems I had with that by turning my jigsaw into a scrollsaw.
