Best way to make big holes

viceroy · Post by **viceroy** » 29 Oct 2007, 17:45

So what is the best way to cut perfect 120mm holes into a case.

I've read numerous posts of modding forums all giving different advice.

Some swear by hole saws, but from my experience they don't cut perfect holes. Some say press a piece of plywood either side of the surface which will keep the holesaw steady...does this work?

Can a perfect hole be cut without a drillpress? I ask because I don't own one.

I've even seen people raving about stepped and cone drill bits, but I've personally never seen one big enough to cut a 120mm hole. In fact the biggest hole saw I've seen is 92mm...not quite big enough?

I also see there is a dremel attachment for cutting holes...Anyone seen? Where would I find one.

Thanks

Skidd · Post by **Skidd** » 29 Oct 2007, 17:50

Sorry man, 120mm whole saw (or closes to it as you can get, i think 112mm) and a drill press. Perfect whole everytime, unless you got mega patience to sit there with a dremel.

viceroy · Post by **viceroy** » 29 Oct 2007, 17:54

Hmmm...Guess I'm gonna have to budget for a Drill Press then.

DAE_JA_VOO · Post by **DAE_JA_VOO** » 29 Oct 2007, 18:03

I'm with Sean on this one. The PERFECT hole size for a 120mm fan is a 114mm hole, and lucky for us all, you do actually get a 114mm holesaw. Use on of those and you'll have PERFECT holes. I speak from experience.

viceroy · Post by **viceroy** » 29 Oct 2007, 18:06

Apparently THIS is the best way to make the perfect hole...as recommended by Bill from MNPCTech.

Problem is that a decent kit costs in the region of $500.

Anyone seen anything locally going for a lot less?

psYChowIt · Post by **psYChowIt** » 29 Oct 2007, 18:20

Won't it be cheaper to send the piece of metal/case to a workshop and have it done?

I34z1k · Post by **I34z1k** » 29 Oct 2007, 18:25

Grenade

WAJeff · Post by **WAJeff** » 29 Oct 2007, 18:28

DAE_JA_VOO wrote:I'm with Sean on this one. The PERFECT hole size for a 120mm fan is a 114mm hole, and lucky for us all, you do actually get a 114mm holesaw. Use on of those and you'll have PERFECT holes. I speak from experience.

You should listen to that man

I did two holes for my case, being 80mm fans and the hole saw did it perfectly

DoOb · Post by **DoOb** » 29 Oct 2007, 18:46

Skidd wrote:Sorry man, 120mm whole saw (or closes to it as you can get, i think 112mm) and a drill press. Perfect whole everytime, unless you got mega patience to sit there with a dremel.

That would be me,

RobThePyro · Post by **RobThePyro** » 29 Oct 2007, 18:58

LOL doobs...

Hey viceroy, i got a drill press from macro, a 5 speed one, takes up to 13 mm drill bits. R299

Rob~!

Skidd · Post by **Skidd** » 29 Oct 2007, 19:00

Yeah doobs made a pretty perfect whole with his dremel. But thats time and patience I dont have

DAE_JA_VOO · Post by **DAE_JA_VOO** » 29 Oct 2007, 19:33

Yeah, it's possible with a dremmel. I've done it a few times too, but it takes VERY long, and no matter how well you do it, a holesaw will always do it better and faster unfortunately.

viceroy · Post by **viceroy** » 29 Oct 2007, 19:42

RobThePyro wrote:LOL doobs...

Hey viceroy, i got a drill press from macro, a 5 speed one, takes up to 13 mm drill bits. R299

Rob~!

Ooh, thanks dude

I'll pop down to Macro this weekend

RobThePyro · Post by **RobThePyro** » 29 Oct 2007, 20:23

Skidd wrote:Yeah doobs made a pretty perfect whole with his dremel. But thats time and patience I dont have

Correction, with MY dremel

Rob~!

DoOb · Post by **DoOb** » 29 Oct 2007, 22:39

RobThePyro wrote:
Skidd wrote:Yeah doobs made a pretty perfect whole with his dremel. But thats time and patience I dont have
Correction, with MY dremel

Rob~!

hehehe

Post by **KillerByte** » 29 Oct 2007, 22:54

phaser?