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Old 07-15-2010, 11:23 PM   #1
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cutting a 63 degree angle on a 2x8 with a circular saw


Help...I'm building a deck and need to cut a 63 degree angle on a 2x8 board the will be used as a joist. My circular saw has a bevel up to 50 degrees, but I can't figure out how to get the extra 13 degrees. I tried flipping the board over and cutting it 27 degrees....I'm still laughing at myself for that one.


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Old 07-15-2010, 11:28 PM   #2
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cutting a 63 degree angle on a 2x8 with a circular saw


circular saw or table saw?


and if all else fails, a hand saw will do it.

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Old 07-15-2010, 11:30 PM   #3
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cutting a 63 degree angle on a 2x8 with a circular saw


Sorry, Circular
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Old 07-15-2010, 11:45 PM   #4
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cutting a 63 degree angle on a 2x8 with a circular saw


I'm not sure I understand the question. Mark out the cut on the board, then cut it.
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Old 07-15-2010, 11:50 PM   #5
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cutting a 63 degree angle on a 2x8 with a circular saw


cut a wedge to go under the skillsaw and make up the extra degrees, if you saw goes to 50deg cut a 13deg wedge on the miter saw and attach it to either the board you're cutting or clamp it to the circular, either way it should give you a 63deg angle
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Old 07-16-2010, 02:57 AM   #6
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cutting a 63 degree angle on a 2x8 with a circular saw


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Originally Posted by djmarklinger View Post
Help...
I tried flipping the board over and cutting it 27 degrees....I'm still laughing at myself for that one.
Nothing to laugh at with setting the saw at 27 degrees.

Square your 2x8 cut it with the saw set at zero. Now set the saw at 27 degrees. Now turn the saw so that the bottom of the table runs on the 1-1/2" face of the 2x8 and cut. The end result gives to a 67 degree. Depending on the type of saw you have you might have to finish the cut with a sawzall or handsaw.
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Old 07-16-2010, 10:15 AM   #7
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cutting a 63 degree angle on a 2x8 with a circular saw


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Originally Posted by Joe Carola View Post
Nothing to laugh at with setting the saw at 27 degrees.

Square your 2x8 cut it with the saw set at zero. Now set the saw at 27 degrees. Now turn the saw so that the bottom of the table runs on the 1-1/2" face of the 2x8 and cut. The end result gives to a 67 degree. Depending on the type of saw you have you might have to finish the cut with a sawzall or handsaw.
exactomundo and fastening a piece of 2x to side of joist gives saw base more surface to ride on
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Old 07-16-2010, 12:25 PM   #8
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cutting a 63 degree angle on a 2x8 with a circular saw


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Originally Posted by Joe Carola View Post
Nothing to laugh at with setting the saw at 27 degrees.

Square your 2x8 cut it with the saw set at zero. Now set the saw at 27 degrees. Now turn the saw so that the bottom of the table runs on the 1-1/2" face of the 2x8 and cut. The end result gives to a 67 degree. Depending on the type of saw you have you might have to finish the cut with a sawzall or handsaw.
That’s one of those “Don’t try this at home” kinda cuts.
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Old 07-16-2010, 01:06 PM   #9
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cutting a 63 degree angle on a 2x8 with a circular saw


Carola: actually I am lost as to why you would set your saw to 27º. You would mark your angle on the board and simply cut it.

unless I am misunderstanding what the OP is doing. I read his need as basically a bevel of 63º on the end of the board. If he simply needs to cut the end at an angle, then you just mark the angle and cut with the saw straight up. Your process will end up with an angle cut end, not a bevel end cut.

to djamrklinger: you did state circular saw in your title. I thought I had read it somewhere but just forgot when I asked you to clarify.


If you have several of these cuts, I think I have a method.


It is the edge cut method. You take all the boards that need this cut and set them 8X side to 8X side (stacked but you will end up with the 1 1/2X side facing up) and clamp them together . You then mark the angle across all of the boards and cut from the edge cut side. The stack will act as it's own table. You will have to spin them and do a cut from each side and maybe finish with a handsaw or sawzall.

but you do not set the sawblade at 27º. You leave it at 90º (straight up)
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Old 07-16-2010, 03:58 PM   #10
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cutting a 63 degree angle on a 2x8 with a circular saw


Today I have learned something about weird cuts. As usual the setup time is longer than the time to cut.
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Old 07-16-2010, 04:20 PM   #11
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cutting a 63 degree angle on a 2x8 with a circular saw


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Originally Posted by nap View Post
Carola: actually I am lost as to why you would set your saw to 27º. You would mark your angle on the board and simply cut it.

unless I am misunderstanding what the OP is doing.
I think you are. He said this;



Quote:
djmarklinger cutting a 63 degree angle on a 2x8 with a circular saw
Help...I'm building a deck and need to cut a 63 degree angle on a 2x8 board the will be used as a joist.

Sounds like he's talking about a floor joist framing that's probably going into an 63 degree angled girder. The joist has to have a 63 degree bevel cut at the end. The first cut is sqaure with the saw set a 0 and the cut I'm talking about gets set at 27degrees running on the 1-1/2" side of the joist creating a 63 degree finished cut.


Quote:
I read his need as basically a bevel of 63º on the end of the board. If he simply needs to cut the end at an angle, then you just mark the angle and cut with the saw straight up. Your process will end up with an angle cut end, not a bevel end cut.
Why would you cut joists like that? Sounds like your talking about the decking.
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Old 07-16-2010, 04:22 PM   #12
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cutting a 63 degree angle on a 2x8 with a circular saw


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That’s one of those “Don’t try this at home” kinda cuts.
It's not difficult to cut. If he's willing to build the deck by himself and use a circular saw, he can certainly make this cut safely.
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Old 07-16-2010, 04:40 PM   #13
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cutting a 63 degree angle on a 2x8 with a circular saw


I know its not difficult Joe, but it’s not a cut for a weak or unsteady hand.

It takes a little more skill than framing 101, but it is the way to do it.
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Last edited by kwikfishron; 07-16-2010 at 04:42 PM.
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Old 07-16-2010, 04:49 PM   #14
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cutting a 63 degree angle on a 2x8 with a circular saw


Quote:
Joe Carola;470476]I think you are. He said this;


I believe I understand what he is doing. There is no reason to alter the angle of your saw from straight up 90º. If you angle the saw and cut on the edge like you tell, the angle will cut the end of the board at an angle, not bevel the end.



Quote:
Why would you cut joists like that? Sounds like your talking about the decking.
[now why would you cut a bevel on the end of a decking board?
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Old 07-16-2010, 04:52 PM   #15
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cutting a 63 degree angle on a 2x8 with a circular saw


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I know its not difficult Joe, but it’s not a cut for a weak or unsteady hand.

It takes a little more skill than framing 101, but it is the way to do it.
After cutting a square cut with no setting on the saw, he can scribe a 63 degree mark on the top and bottom 1-1/2" edges of the 2x8. He ca square the short point of the 63 degree mark as a reference line. With the saw set a 0 he can cut the top and bottom 63 degree lines on edge.

The blade will go approximately 2-1/2" down on each side using a 7-1/4" saw giving him roughly 5" cut out of the 2x8 and 2-1/2" left to cut. He can finish that cut with a sawzall or handsaw following the square line from the short points squared mark I said above.

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