how hard is it to cut blowholes in plexi with a dremel ? I was just wondering because im thinking of changing my boring square window to something a little like this below. Current... Considering... Also do they tend to rattle ? when there on the thin plexi ? And do you think it will look ok with a bit of blowhole trim arround em ?
methinks using a dremel would melt the plastic, you coult use a proper router and put it up so fast that is chips away teh plastic beore it has a chance to get hot but i don't think that would be practical, try a jigsaw on low speed
you would probably have to use a holesaw. I think you can buy a window kit with a blowhole already cut into it.
A hole saw would be the best. That is how Linear cut his in the invisible case. The key is slow rotation. I have used several different dremel tools to cut plexi and as stated before, go slow not to melt the plexi too much. I think adding blowholes to windows looks rockin'
Holesaw would be my first choice. Even at that prepare for lots of chipping. Go slow and use the lightest possible pressure. Spray a little water (have a helper do this) on the saw to keep him cool as well.
Question for ya linear..once said hole has been carefully cut, i'm assuming the hole will have alot of rough edges. Do you just use sandpaper to smooth out? Maybe the lightest dremel sandpaper bit?
I used stips of wet/dry sandpaper, and a back-and-forth polishing motion drawing the length of the strip through the hole (think of polishing a shoe). 220 grit cuts acrylic pretty aggressively, so that was what I used for the main smoothing, then up through 400, 600, 1000, 1500 for polishing, and I finished mine with Novus #2 polish on a rag (rubbing compound should work for this as well, but has a petroleum base where Novus has a water base).
A spot of advice for anyone cutting plexi with a jigsaw, use a v slow speed and put masking tape on the area your going to cut. If you cut too fast you run the risk of the plexi shattering. If you don't mask it's quite likely that the cut will melt itself together as you go round. It's very amusing but not practical
i used a dremmel to cut mine in the lanbox, used the drill on low speed, cut thru it like butter then used the fine sander & it was perfect
i shattered 3 pieces of plexi trying to put a 92mm intake in my window ... 2 thanks to an unruly jigsaw, one i sorta put a dremel right thru ... then i went an bought a 92mm holesaw, and it came out perfect ... finished it by dremel & sanding drum on very low speed, then door edge molding . check it.
I'm gonna attempt to cut plexi for the first time this weekend with a jigsaw..scaring the hell outta me Are there "special" blades you have to/could use for the jigsaw? I'm assuming that big toothed blades are worse, but i don't know
i'm pretty sure any blade will cut plastic as most of them are designed to cut wood or metal, a bit of plastic would be like butter
mmmm....butter Ok sounds good to me, i just thought a bigger toothed blade would rip up the plexi too harshly. I'll give it a go this weekend..wish me luck! :dude:
get the metal blades, but make sure you do it on very very slow speed...also leaving a big gap between the cut and where u want to cut gives u the saftey of a bit of filing and sanding...
I have cut plexi with a jigsaw... use a blade for cutting metal (most teeth per inch you can find) and run it at slow speed. The slower you cut the more you will progress grasshoppa... and mask the cut line. Stabalize the plexi with clamps or whatever as much as possible, modding isn't always like a woman so vibration is your enemy and he seeks to crack your plexi and make you cry like a girl.
keep it from rattling www.pcmods.com has rubber washers to stop fans from rattling especially in places like windows.
