Blowhole hole-cutting advice?

[ErikaeanLogic]

Hi! I just got a Dremel since I heard that they are totally phat for making blowhole customizations on computer cases. Well, I've tried to cut holes in the case and chassis with a metal-cutting bit(actually, 2 bits) at various speeds and this thing sucks! Should I take it back to Home Depot and get myself a Roto-Zip(5 Amps vs. 1.15 Amps on the Dremel) or should I break down and get a jigsaw with a hacksaw blade? Obviously, money is somewhat of an issue, but I'm already $80 into this and I suppose I'll pay whatever I have to to get nice holes for coolage. I'd appreciate any advice from you experienced hole-cutters out there(you know who you are!).

Thanks

 

[conlan]

are you using a reinforced cutting wheel?? a lot of folks are now using holesaws to cut blow-holes.

 

[hellboy]

thats the answer i got when asking
hole-saws seem to be the method of choice

 

[bUzzbOmb]

I have used the dremel to modify many things on my cases.
It is a fantastic tool to have, but it is definately more of a finesse tool.

For making fan holes definately go for a reinforced cutter.
Then you can use the dremel for deburring and making screw holes.

 

[ErikaeanLogic]

Do hole-saw bits come in a large enough size to accomodate a 120mm fan hole? I've looked around and I think that a RotoZip is the way to go for me. Keep the advice coming, folks.

 

[hellboy]

here is a small tutorial tht might help you a bit tutorial
they also sell the hole-saw for 120mm fans so i guess it does exist

 

[Jalapeno]

The most practical way to cut a hole is a holesaw. If you have tough steel, go with a "carbide tipped" one. We are talking serious $$$s here for a 120mm... And then you still need a powerful drill... If you choose to go this way make sure you keep the RPM down while drilling.