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Posted: 9/20/2016 6:41:49 PM EDT
[#1]
Make a template and use a router
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Posted: 9/20/2016 6:44:19 PM EDT
[#2]
How square are we talking about? Punch the corners with a 1/8" drill and follow up with a jig saw.
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Posted: 9/20/2016 8:15:42 PM EDT
[#3]
What, specifically are you trying to accomplish?
How big a square or rectangle and what is your end goal with these holes? You might have other options to consider. |
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Posted: 9/20/2016 8:44:57 PM EDT
[#4]
Oscillating tools can easily accomplish this, with the right "blade".
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Posted: 9/20/2016 9:01:24 PM EDT
[#5]
Ideally it would almost be perfectly square.
Quote HistoryQuoted:
What, specifically are you trying to accomplish? How big a square or rectangle and what is your end goal with these holes? You might have other options to consider. I'm wanting to build a desk. The two square/rectangular holes would be for the computer tower to get air on the side and back (and for cable management in the back). I'd be veneering the edges of the plywood. ETA: the side hole would be >80 square inches, and the back hole would be >30 square inches. |
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Posted: 9/20/2016 9:23:21 PM EDT
[#6]
80 and 30 sq. in. holes sound large enough for a jig saw and straight edge to guide it.
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Posted: 9/20/2016 9:23:48 PM EDT
[#7]
I do a stopped cut on the table saw or a guided plunge/stop cut with a circular saw and finish the cut with a jap saw.
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Posted: 9/21/2016 3:04:05 PM EDT
[#8]
Quote HistoryQuoted:
I do a stopped cut on the table saw or a guided plunge/stop cut with a circular saw and finish the cut with a jap saw. Table saw only works if it's at the edge of the stock. A circular saw plunge cut may work, if the sides of the hole are long enough to handle a circular saw plunge cut. |
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Posted: 9/21/2016 9:09:40 PM EDT
[#9]
Quote HistoryQuoted:
Ideally it would almost be perfectly square. I'm wanting to build a desk. The two square/rectangular holes would be for the computer tower to get air on the side and back (and for cable management in the back). I'd be veneering the edges of the plywood. ETA: the side hole would be >80 square inches, and the back hole would be >30 square inches. Quote HistoryQuoted:
Ideally it would almost be perfectly square. Quoted:
What, specifically are you trying to accomplish? How big a square or rectangle and what is your end goal with these holes? You might have other options to consider. I'm wanting to build a desk. The two square/rectangular holes would be for the computer tower to get air on the side and back (and for cable management in the back). I'd be veneering the edges of the plywood. ETA: the side hole would be >80 square inches, and the back hole would be >30 square inches. 6x6 and 9x9 Drill corners, use those to locate your square router template, trim waste from router fillet and inside fillet radius from drilled hole with a chisel. Or just router, and veneer the radius. |
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Posted: 9/23/2016 5:29:58 AM EDT
[#10]
Quote HistoryQuoted:
80 and 30 sq. in. holes sound large enough for a jig saw and straight edge to guide it. This but I'd add a layer of tape to your cut lines to help avoid tear out of your plywood. Should also score your cut line with a utility knife. |
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Posted: 9/23/2016 11:49:00 AM EDT
[#11]
Quote HistoryQuoted:
Table saw only works if it's at the edge of the stock. A circular saw plunge cut may work, if the sides of the hole are long enough to handle a circular saw plunge cut. Quote HistoryQuoted:
Quoted:
I do a stopped cut on the table saw or a guided plunge/stop cut with a circular saw and finish the cut with a jap saw. Table saw only works if it's at the edge of the stock. A circular saw plunge cut may work, if the sides of the hole are long enough to handle a circular saw plunge cut. You can make larger one in the middle. Put the wood down and raise the blade while running. A block of wood clamped to the fence will hold the plywood down and in position to start the cut. |
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