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angle/bevel question???

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Forum topic by Belg1960 posted 01-10-2017 11:12 PM 719 views 0 times favorited 20 replies Add to Favorites Watch
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Belg1960

1050 posts in 2903 days


01-10-2017 11:12 PM

Topic tags/keywords: question

Guys, I’m building a four sided birdhouse where the roof peak is cut at 45 degrees on either side and butts into a roof thats cut the same way.
Here is my VERY crude drawing of what I need help with (circled in red). Is there a calculator that I can use on line for this?

-- ***Pat*** Rookie woodworker looking for an education!!!


20 replies so far

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GR8HUNTER

2965 posts in 551 days


#1 posted 01-11-2017 12:00 AM

are you trying to find the angle of it? ..... or what ?

-- Tony Reinholds,Pa. REMEMBER TO ALWAYS HAVE FUN

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Belg1960

1050 posts in 2903 days


#2 posted 01-11-2017 12:03 AM

right the angle and the bevel for it to sit flat on the other roof.

-- ***Pat*** Rookie woodworker looking for an education!!!

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jbay

1857 posts in 737 days


#3 posted 01-11-2017 12:43 AM

35.26 miter, 30 bevel… ?

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

View ChuckV's profile

ChuckV

3061 posts in 3365 days


#4 posted 01-11-2017 12:47 AM

[On second thought, what I suggested was wrong!]

-- “Big man, pig man, ha ha, charade you are.” ― R. Waters

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Belg1960

1050 posts in 2903 days


#5 posted 01-11-2017 03:04 AM

jbay, thanks can you share how you calculate something like this?

-- ***Pat*** Rookie woodworker looking for an education!!!

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jbay

1857 posts in 737 days


#6 posted 01-11-2017 03:13 AM

I took a few minutes to draw it in Sketchup,
Then I went to this site and entered 90 deg for the wall angle and 45 deg for the spring angle to double check/confirm what I measured in Sketchup.
If your asking me how to do the math, I have no clue…

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

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a1Jim

116585 posts in 3415 days


#7 posted 01-11-2017 03:17 AM

Good to know J wish I was good at Sketchup or had the slightest clue.

-- http://artisticwoodstudio.com Custom furniture

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oldnovice

6433 posts in 3206 days


#8 posted 01-11-2017 06:59 AM

I did the same thing in Creo modeling and got the same answers … !

-- "I never met a board I didn't like!"

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TopamaxSurvivor

18091 posts in 3514 days


#9 posted 01-11-2017 08:31 AM

If you can find a good book on using a framing square, it will tell you how to cut those angles. I do not remember how, been about 50 years too long ago ;-)

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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Belg1960

1050 posts in 2903 days


#10 posted 01-11-2017 10:17 AM



I took a few minutes to draw it in Sketchup,
Then I went to this site and entered 90 deg for the wall angle and 45 deg for the spring angle to double check/confirm what I measured in Sketchup.
If your asking me how to do the math, I have no clue…

- jbay


I really appreciate the effort and the link that will be very helpful in the future. Is the wall angle 90 degrees because it is plumb or because it was cut at a 45 degree angle?

-- ***Pat*** Rookie woodworker looking for an education!!!

View Tony_S's profile

Tony_S

766 posts in 2921 days


#11 posted 01-11-2017 11:12 AM

35.26 miter, 30 bevel… ?
- jbay

I don’t know if the 30 degree bevel is correct(in this instance) J? Did you try it Pat?
30 degrees would work if there was a bevel on both roof sections, but there isn’t, the left hand section runs straight through….the only bevel is on the on the right hand section.
Just to confuse matters even more…if you did crown molding this way on an inside corner, 30 would still be correct, but only because the right hand side would be coped into the left hand side.

On the other hand…..I could be completely effed in the head? I’m just confusing the hell out of myself now. To early for this chit. lol!

Got a lot of respect for the old timers who could ‘stick frame’ gables and dormers properly and accurately….it’s a lost art anymore.

-- It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

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dbray45

3295 posts in 2615 days


#12 posted 01-11-2017 12:58 PM

I don’t know the angles that you have for your roof line but with a couple adjustable squares will make short work out of it.

If your roof is 30 degrees and you want to come off it 90, then the angle will be 60 for the crown. When you come off it at an angle, it gets different.

Set one square for the crown of the new roof off the main roof. Take the other, and set it for the angle of the new roof – line it up for the angle. Take that to the chop saw and it works every time.

-- David in Damascus, MD

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a1Jim

116585 posts in 3415 days


#13 posted 01-11-2017 01:07 PM

I fight angels all the time I guess it’s my dyslexia, not exactly sure what you’re talking about David ? If you have a photo of what the two squares look like as your describing it,it would make things clearer at least to me,if it’s not to much trouble?

-- http://artisticwoodstudio.com Custom furniture

View Snipes's profile

Snipes

150 posts in 2083 days


#14 posted 01-11-2017 01:09 PM

for cutting rafters.. on framing square 12 on the tongue 17 on body. speed square middle is for hip, use 12/12. without doing it i believe j right on the 35 but think 45 on the bevel.

-- if it is to be it is up to me

View jbay's profile

jbay

1857 posts in 737 days


#15 posted 01-11-2017 02:54 PM

Tony, your effed in the head…lol go drink some coffee! (I drink Monsters myself)

A1Jim, angels are a lot harder to fight than angles…

I just went and tried it, Worked perfect

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

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