Cutting Holes In Sheetmatal
#31
Then cut the bottom rectangle and use some stretched metal, sourced @ home depot.
Magazines have issues, everything else has problems

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#32
(05-19-2016, 06:10 PM)pepi Wrote: Then cut the bottom rectangle and use some stretched metal, sourced @ home depot.

Huh? 17428
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#33

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Expanded metal ? to cover the rectangular hole.
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DaveH
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#34
Another thing to mention is the hole saw arbor. On the size you are using the hole saw is driven by two pins on the arbor. Just realize the hole saw base will not snug up to the arbor base. There is a good reason for this, it allows the hole saw to unscrew after the hole is cut, if the two bases fit snugly together it can be very difficult to unscrew them.
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DaveH
 a child of the 60's and 50's and a bit of the 40's Smile
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#35
(05-19-2016, 06:57 PM)DaveH Wrote: Expanded metal ? to cover the rectangular hole.
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DaveH

I know what that is Dave but what does it have to do with the subject of this thread "Cutting Holes In Sheetmetal"? I didn't ask what to cover the holes with but how to cut them. 17428

Ed
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#36
(05-19-2016, 07:13 PM)DaveH Wrote: Another thing to mention is the hole saw arbor. On the size you are using the hole saw is driven by two pins on the arbor. Just realize the hole saw base will not snug up to the arbor base. There is a good reason for this, it allows the hole saw to unscrew after the hole is cut, if the two bases fit snugly together it can be very difficult to unscrew them.
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DaveH

I wondered about that. Thanks for the explanation. Thumbsup

Ed
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#37
You are wanting to introduce ambient air for cooling correct? I am offering another approach that will do that. You want holes fine by me. I am out.
Magazines have issues, everything else has problems

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#38
Finally got some time to tackle this. Got the first large hole done. It went much smoother than I expected. I used the hole saw with my 1/2" power drill. The other one will have to wait until tomorrow.

Ed

   
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#39
Thumbsup Smiley-dancenana
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DaveH
 a child of the 60's and 50's and a bit of the 40's Smile
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#40
Looks good!
Logan 200, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, a shear with no name, ...
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