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Allotment Stuff => The Basics => Topic started by: littlebabybird on November 23, 2008, 13:35:25

Title: making bird box, need help
Post by: littlebabybird on November 23, 2008, 13:35:25
I'm having problems working out an angle

its a 6 sided box i'm reasonably sure the mitre for the sides needs to be 30deg but for the roof
i get a nice peak on it if i use 50deg for the point on the triangle but i cant for the life of me work out what
mitre i need to make the joins on the roof neat.
can anyone tell me either how to work it out or what the answer is :) please

lbb
Title: Re: making bird box, need help
Post by: tonybloke on November 23, 2008, 13:57:07
'GRIPFILL'  ;) (google it)
Title: Re: making bird box, need help
Post by: littlebabybird on November 23, 2008, 14:22:10
nooo, i need to do it right

lbb
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 23, 2008, 14:39:46
is it the angle of the triangular pieces that make up the roof? That wiould depend on the slope of the roof
Title: Re: making bird box, need help
Post by: littlebabybird on November 23, 2008, 14:52:16
Quote from: Rhubarb Thrasher on November 23, 2008, 14:39:46
is it the angle of the triangular pieces that make up the roof? That wiould depend on the slope of the roof
yeah thats my problem, do you know how i would work it out?
50deg for the 6 pieces gives me a 30 deg gap from the floor

is that any help?

lbb
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 23, 2008, 15:18:10
couldn't you built a model out of card and keep cutting the triangles until you get something that looks right? Another time i'd try and work it out, but i'm struggling with an headache. a Netto wine headache ???
Title: Re: making bird box, need help
Post by: littlebabybird on November 23, 2008, 16:15:41
ok, i hope your head gets better soon
lbb
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 23, 2008, 16:39:17
getting better.

how's your Trigonometry?  :D
Title: Re: making bird box, need help
Post by: littlebabybird on November 23, 2008, 17:39:55
trig is that sine cos and tan type stuff?
i have a table for them from school, smp its ancient but i guess they are still the same:)
so if they are the right thing i can do that.

lbb
Title: Re: making bird box, need help
Post by: nilly71 on November 23, 2008, 19:31:34
Is it a box or feeder you are making?

I found a picture of 6 sided feeder, is this what you are making?
(http://www.birdcraft.co.uk/birdtables/CoronetLarge.gif)

i can't help with the angles, just being nosey ;D

Neil
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 23, 2008, 19:36:37
sorry lbb - i thought you wanted to know the angle of slope of the roof for a given angle of the roof pieces. You want to know what angle to cut the roof pieces so they fit together exactly

I *think* it's the same angle as the slope of the roof, if that makes sense. I'll try and find some triangles and have a play  :D
Title: Re: making bird box, need help
Post by: star on November 23, 2008, 20:20:48
Is this any good?

http://www.4hwildlifestewards.org/pdfs/birds.pdf
Title: Re: making bird box, need help
Post by: OllieC on November 24, 2008, 18:35:59
I have a bird box that a client of mine gave me as a ty present... But I don't have a tree! Swap you for some Dora the really annoying explorer stuff?!?!
Title: Re: making bird box, need help
Post by: littlebabybird on November 25, 2008, 02:00:47
Quote from: OllieC on November 24, 2008, 18:35:59
I have a bird box that a client of mine gave me as a ty present... But I don't have a tree! Swap you for some Dora the really annoying explorer stuff?!?!
awww ollie thats sweet
thank you for the offer,
dora is yours anyway, and your very welcome to her

lbb
Title: Re: making bird box, need help
Post by: Hyacinth on November 25, 2008, 09:39:03
so,  have you solved it yet?
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 25, 2008, 12:00:09
done it, but it's complicated, and it's not the angle of slope, neither. If I were you i'd guess and make up the difference with a filler  :D
Title: Re: making bird box, need help
Post by: kenkew on November 25, 2008, 19:52:23
Have made loads of 'em.

The usual angle joining pieces to create a roof is the same as used to create a corner, that is; 90dg. To get that you need to make the angle 45 on each piece.
If that's too complicated, do a butt joint, one piece butted under the other. Just make sure the top piece is longer by the thickness of the board than the under one.
Clear....... ???


PS: Do a search. I put pic's on here a coulpe of years back.
Ken.
Title: Re: making bird box, need help
Post by: Rhubarb Thrasher on November 25, 2008, 19:57:42
no, it's an hexagonal roof, meeting at a point.

Can't say what the mitre angle is without knowing the dimensions of the triangular pieces. It changes