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How do I cut fan holes in the top of my RocketFish? - Page 2

post #11 of 23
I used a 4 1/2 inch bi-metal hole saw and it worked perfect. I just got done putting on the c-channel I ordered from frozencpu and it looks like it was done at the Lian-Li factory

Just be sure to apply some force to keep it stable. It tends to wobble.
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post #12 of 23
It's been a week; but in the absence of anyone really answering your question crash, I'll weigh in. If you stop back by, I hope this helps.
Quote:
Originally Posted by crashovride02 View Post
I want it to look like this
Those holes are going to be tough to make with a hole saw.

Jigsaw (or scroll saw if you have one) is probably your best bet.

You can use a drill or a dremel "plunge cut" to start your long cuts with the saw. The corner curves there are probably a bit tight for a jigsaw, but you can try it. Just go slow, and stay inside the lines. Layout what you want to cut on masking tape, and use a half-round file to take your cuts out the lines.

Aluminum is pretty easy to file, it's fairly soft. Just remember, its a lot easier to take a little more material away than it is to add it.
post #13 of 23
If you can find a hole saw that has a 4.7" diameter you will be good to go. You should be able to drill from the inside which will limit the chance of you scratching your case.
    
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post #14 of 23
i got a decent article on case fans - the link is below in my signature...it may give you some hints.
    
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post #15 of 23
Quote:
Originally Posted by D.J.S. View Post
Umm NO!
Use an arbor bit with metal cutting hole saw , on a drill.
I don't want you to cut your arm off trying to squeeze a fan in a case.!
use these,hole saw 4 1/2 with drill arbor
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post #16 of 23
Quote:
Originally Posted by D.J.S. View Post
Umm NO!
Use an arbor bit with metal cutting hole saw , on a drill.
I don't want you to cut your arm off trying to squeeze a fan in a case.!
delete d-p
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post #17 of 23
I'd use a dremel with a reinforced cutting wheel. I managed to use those to cut my steel armor case, so I have no doubt they could handle aluminum. Just be careful and remember that it's easier to remove more than add it back.
post #18 of 23
Quote:
Originally Posted by pacmantravis View Post
I'd cut a "starter" hole and then use some tin snips. Probably the safest way.

I've read two threads of people messing up with power tools just in the past couple of hours...
tin snips? to cut a clean round hole in sheet metal? are you on glue?!



buy a good holesaw and a drill press if you want to do it *right*

if you want to do it cheap get a dremel

if you want to do it easy and fast get an electric or air nibbler and make a template out of mdf or acrylic...



Harbor freight doesn't carry the best tools but for 50 bucks you can get a decent electric nibbler that should be good enough to cut 500 120mm fan holes...
http://www.harborfreight.com/cpi/cta...emnumber=43063


People always ask me what tools they should have... the one i always suggest is an Air Compressor... and if you had one, you could get an air nibbler for 20 bucks...
http://www.harborfreight.com/cpi/cta...emnumber=46061
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post #19 of 23
Quote:
Originally Posted by noldevin View Post
I'd use a dremel with a reinforced cutting wheel. I managed to use those to cut my steel armor case, so I have no doubt they could handle aluminum. Just be careful and remember that it's easier to remove more than add it back.
i used a dremel to cut a vent hole once... and after a few minutes of screwing around i figured... you know... if i take a 2x4... and widdle a few little notches out i can use 2 pipe clamps to secure the dremel and use a center hole and pin like a compass to cut perfect holes... it worked, but not the best... as you're cutting a round hole with a straight grinding wheel...
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post #20 of 23
i know about metal but could you use a hole saw to cut through metal (relatively cleanly)?

say for instance...the top of my P180 case.
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