Best way to cut a hole in a metal case?

bullion416

Senior member
Jun 17, 2001
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I am planning on buying a window thing for my case, but need advice on how to accurately cut a hole in the metal case. What have you guys done and what did you use?
 

FlowerMan

Golden Member
Aug 19, 2001
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For a big hole like that, I imagine a jigsaw would be the easiest. Hole saws are out of the question, they're just for cutting holes for blowholes. Either a jigsaw or a Dremel, but you're gonna be spending a heck of a long time cutting and replacing wheels with the dremel. You gotta finish up with a dremel anyways, so you'll be using it regardless :D
 

Mitzi

Diamond Member
Aug 22, 2001
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Yup, I'd say a Dremel too - you can cut a much neater hole than with a jigsaw. Get the heavy-duty cutting discs and get plenty of 'em!
 

Dan

Diamond Member
Oct 9, 1999
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For a window I used a jigsaw. Trace out your pattern, cover it with a double layer of masking tape and use a metal cutting blade. (And be sure to wear safety glasses!) For smaller holes, e.g., 80mm and 92mm blowholes, I use bi-metal hole saws attached to my drill.
 

TakeFlight

Member
Aug 4, 2001
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As far as I'm concerned the easiest way is to use a jigsaw. IMO, it will give you the cleanest, straightest cut since it practically guides itself. As opposed to the Dremel which you need to have a really steady hand to keep straight.
 

chizow

Diamond Member
Jun 26, 2001
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I used a combination of a jigsaw and a holesaw for my blowholes. My dad had all the tools so that made it easy. I just drilled about 10 pilot holes with the holesaw (2 80mm blowholes) and used the jigsaw to play connect the dots.

Chiz
 

FlowerMan

Golden Member
Aug 19, 2001
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If you use any type of saw, make sure you have cutting oil. saves you time and saves your saw. Makes clean up a heck of a lot harder, but its worth it.
 

Jen

Elite Member
Dec 8, 1999
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I have used grinders to dremals to jigsaws to hacksaws............and a hand nibbler which is nice as well


Jen
 

dew042

Platinum Member
Nov 2, 2000
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<< Dremel only way to go >>



personally i prefer the shotgun reduction method best

:D

dew.
 

JCobra14

Senior member
May 14, 2001
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I'm working on this same project, and i'm wondering what's the best dremel tool to clean up with, once you've cut the hole with the cutting disc?
 

TimberWolf

Senior member
Oct 11, 1999
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Do a search for item 28012 - "Mini Nibbler" An automotive sheetmetal nibbler beats a jigsaw for window projects. Wear gloves to avoid blisters. Leaves minimal burrs that you can finish with a medium-tooth file.

Just did a window yesterday - the cut-out took me less than 1/2 hour from layout to deburring. I've done over a dozen windows and 5" blowholes, along with other assorted projects - well worth the investment.

******************************
Edit: Fixed link
 

Mitzi

Diamond Member
Aug 22, 2001
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<< personally i prefer the shotgun reduction method best
dew.
>>



I guess it saves having to drill pilot holes!
 

dew042

Platinum Member
Nov 2, 2000
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<<

<< personally i prefer the shotgun reduction method best
dew.
>>



I guess it saves having to drill pilot holes!
>>



don't be silly. pilot holes are still a must! neatness is absolutly imperitive!

;)

dew.
 

FlowerMan

Golden Member
Aug 19, 2001
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I think the tool you should use really depends on the application. Are you cutting through thin cheapo steel or the thick, tough stuff? Soft aluminum (annodized, but still relatively soft)?