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Low Earth Orbit
DIY Audio
Knockout Punches on 1/8” aluminum plate
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<blockquote data-quote="Steve White" data-source="post: 213625" data-attributes="member: 12457"><p>Well it works, with a few caveats. Can't get too close to the edges. No problem there, punch holes first then trim panel if necessary to final size.</p><p></p><p>I'll try out drilling as large a hole as possible with the Unibit (stepped drill) next time. This time I just did the standard sheet metal method and drilled the holes large enough for the stud on the KO punch to go through.</p><p></p><p>I wouldn't try it with anything thicker than the 1/8". It pulled through ok using the cordless impact gun rated at 200' lbs max. Didn't seem to load up anymore than with sheet steel in the range it's designed for (max 12ga as I recall) or rack panels I use them on.</p><p></p><p>Drilling out close to final size with the unibit should make it a breeze to punch holes for Neutrik's in aluminum speaker panels.</p><p></p><p>I'll come back and post an update when I make the first panels to show the layout. That's done with Visio, printed full scale and spray glued to the panel. Makes layout a breeze, just dimple all the holes with a punch and get it done. Cut to size if necessary using the template guidelines. Took about 40 years of fabrication to finally figure this out - it's getting easier. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Steve White, post: 213625, member: 12457"] Well it works, with a few caveats. Can't get too close to the edges. No problem there, punch holes first then trim panel if necessary to final size. I'll try out drilling as large a hole as possible with the Unibit (stepped drill) next time. This time I just did the standard sheet metal method and drilled the holes large enough for the stud on the KO punch to go through. I wouldn't try it with anything thicker than the 1/8". It pulled through ok using the cordless impact gun rated at 200' lbs max. Didn't seem to load up anymore than with sheet steel in the range it's designed for (max 12ga as I recall) or rack panels I use them on. Drilling out close to final size with the unibit should make it a breeze to punch holes for Neutrik's in aluminum speaker panels. I'll come back and post an update when I make the first panels to show the layout. That's done with Visio, printed full scale and spray glued to the panel. Makes layout a breeze, just dimple all the holes with a punch and get it done. Cut to size if necessary using the template guidelines. Took about 40 years of fabrication to finally figure this out - it's getting easier. :) [/QUOTE]
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Knockout Punches on 1/8” aluminum plate
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