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Post by insanecooker on Feb 27, 2021 11:53:02 GMT -5
Hi folks, I need to make a cutout in a wooden shelf to go around a small bit of a square “duct work”. The thing is that the duct is slanted 45 degrees, so I’d need to chamfer the inside lines to go around it. I can’t get a jigsaw to do this. Is this a job for a router with a V bit or is there something I’m missing? The shelf would go on this... er, shelf.  |
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Post by LesTele on Feb 27, 2021 12:03:32 GMT -5
Sorry to chime in. I have no technical knowledge whatsoever.
I would totally buy that print. An album cover perhaps?
Sorry to interrupt.
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Post by RonC Picker on Feb 27, 2021 12:06:58 GMT -5
Possibly a jigsaw and wedge(s) for the angle cut?
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Post by insanecooker on Feb 27, 2021 12:12:23 GMT -5
Possibly a jigsaw and wedge(s) for the angle cut? Maybe it’s my poor technique, but while I can certainly use a jigsaw for the sides of the “U” (looking at the cutout from the top) I can’t see how I could use for anything other than a vertical cut in the bottom of the U (how could I “plunge” a 45 degree angle inside the piece, basically?). |
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Post by RonC Picker on Feb 27, 2021 12:14:34 GMT -5
Google swivel base, or bevel cut jigsaws. They exist and can do bevel cuts.
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Post by NoSoapRadio on Feb 27, 2021 12:20:46 GMT -5
Actually, I would use a jigsaw for the main cutout. I would make a paper template -- you need to mock up something the same thickness as your shelf so the template is at the right height. You only need to get the top surface of the shelf to match exactly. From there I would use a coping saw to remove the material below the top surface until you get a tight fit. It's almost like coping a crown molding.
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Post by insanecooker on Feb 27, 2021 12:21:16 GMT -5
Google swivel base, or bevel cut jigsaws. They exist and can do bevel cuts. Mine does bevel cuts. My question was about doing that in the part that is inside of the wood. I can easily cut the sides going into the wood at 45 degrees, but how do you get to the inside part of it at an angle? Drill a 45 degree hole? |
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Post by insanecooker on Feb 27, 2021 12:23:14 GMT -5
Actually, I would use a jigsaw for the main cutout. I would make a paper template -- you need to mock up something the same thickness as your shelf so the template is at the right height. You only need to get the top surface of the shelf to match exactly. From there I would use a coping saw to remove the material below the top surface until you get a tight fit. It's almost like coping a crown molding. That’s my thinking for an option too, much as I hate using the coping saw to remove this much material. |
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Post by NoSoapRadio on Feb 27, 2021 12:30:16 GMT -5
An alternative is getting your top surface cutout done and then flip the piece over and use a chisel to pare out the waste material. I suppose you could use an oscillating saw to remove most of the material -- but it's not a very precise tool. The tricky part is fitting around that molding -- but still, hand tools would be my choice.
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Post by RonC Picker on Feb 27, 2021 12:36:41 GMT -5
Google swivel base, or bevel cut jigsaws. They exist and can do bevel cuts. Mine does bevel cuts. My question was about doing that in the part that is inside of the wood. I can easily cut the sides going into the wood at 45 degrees, but how do you get to the inside part of it at an angle? Drill a 45 degree hole? Good point. 45 degree hole would work if you can do it. I also had the thought that you can do a normal cut and then maybe use a belt sander to grind away to the needed angle. WWPD (what would Peegoo do)? |
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Post by K4 on Feb 27, 2021 12:42:51 GMT -5
I'd just make a step and cover the duct
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Post by insanecooker on Feb 27, 2021 12:47:17 GMT -5
I'd just make a step and cover the duct As in making the shelf above the whole thing? Wish I could, but there’s a window that would get covered if I did that. |
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Post by Taildragger on Feb 27, 2021 13:07:21 GMT -5
How about just making the shelf with a square cutout for the angled piece and then making a "cover" to go over the angled piece and conceal the square cutout? The triangular sides of the "cover" could be cut from a piece of baseboard (if you want to retain that fancy edge). The 45˚ angles on those and the flat "top" of the cover could be cut easily and accurately with a miter saw or miter box if you have either.
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Post by K4 on Feb 27, 2021 14:13:50 GMT -5
I would keep the shelf where it is just box in the duct only. From your picture my idea would work perfectly. Give your wife a small trinket shelf along with the main shelf.
I wish I could post a pic.
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Post by K4 on Feb 27, 2021 14:29:24 GMT -5
I sent you an e mail with a crude paint drawing of my idea.
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Post by insanecooker on Feb 27, 2021 14:49:56 GMT -5
I sent you an e mail with a crude paint drawing of my idea. It is very clear! I may go that way actually (I’ve been suffering with the coping saw for the last couple of hours). |
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Post by NoSoapRadio on Feb 27, 2021 15:08:17 GMT -5
(I’ve been suffering with the coping saw for the last couple of hours). I guess I should have asked. Is your new shelf oak? That would be more of a challenge than pine or poplar. Still possible, just not as easy. |
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Post by K4 on Feb 27, 2021 15:13:35 GMT -5
It is very clear! I may go that way actually (I’ve been suffering with the coping saw for the last couple of hours). Not only is it easier to pull of, it's a cleaner look. IMO |
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Post by Peegoo 🏁 on Feb 27, 2021 15:59:40 GMT -5
"WWPD (what would Peegoo do)?"
Peegoo would hold the shelf at a 45-degree angle on a table saw sled and make the cutout using multiple passes.
Sort of like making one large finger joint on the end of a board, but with the board at a 45-degree slant. It's super easy and super accurate.
The first step is to mock up the cut using a piece of corrugated cardboard to ensure all your dimensions are correct...before you make the cut on the wood.
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Post by insanecooker on Feb 28, 2021 22:19:09 GMT -5
Though I did get a table saw about a month ago, I've yet to make a sled. I haven't had to crosscut anything my miter saw couldn't handle yet. I do need to get around to building one, though...
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