Thread: Newbie - How to work out angles

Okay, I'll have a go at this... I'm guessing that you would divide the no. of degrees in your radius by the no. of pieces you wish to use to cover it. The result is the angle you need to cut each piece to fit. Maybe.

Regards,
Rusty.

BTW, welcome to the forums, Meerkat!

Rusty, wouldn't you then divide that by 2 so that the two edges of adjacent boards make the one neat angle.

BTW welcome to the forums Meerkat.


Peter.

Makes sense to me, Peter (apologies to Meerkat for my lack of maths skill ).
While we're on it, is this how you would work out how to make an arched lid for a chest, pirate treasure style?

regards,
Rusty.

Although it is possib;e to work this out mathematically, sometimes it is easier to draw a scaled diagram and take your measurements from the diagram, and scale them up if it is an odd shape.

Meerkat
I think you have to decide how tight you want the corner to be , draw out the radius to the size you want and using small cut offs place them on the line to see how many boards you are going to use, then divide the number of degrees by the number of boards plus one, half this and cut that angle on each side of the boards plus one side of the first and last boards of the straight sides. if it is 90 deg and you want to go round in two boards ,
2 +1 = 3 divided into 90 deg = 30 half this = 15 deg
so cut one edge of first board at 15 deg second board 15 deg both sides next board the same and last board 15 on one edge and you have 90 deg radius
this method worked fro me but thats easier said than done
Hope this is of some help
Russell




I used to have a handle on life, but it broke.

Originally Posted by Rusty

While we're on it, is this how you would work out how to make an arched lid for a chest, pirate treasure style?

Rusty, I think I would, but then I quite like maths. These kind of puzzles are fun to me.

However WB method is simpler in deciding the width of the timber and number of pieces to use.


Peter.

I'm maths-challenged and too slack to draw plans. (I think some smartening up is in order)! Thanks for your input, gents. And please forgive the semi-hijack, meerkat.

Cheers,
Rusty.

Is it like the diagram on the left or the right?

I pictured it more like this...??

I'd do a full scale set out of the corners in plan view on some paper or board

Hi,

Rusty, your diagram is right.

I couldn't wait so after I got home last night, in the dark and rain I tried out the formula.

Well I gotta says guys, you are legends It works just fine and dandy. The next step is to mount them but I think I've got that side covered.

I have spent months thinking, searching and getting frustrated in not being able to work it out only to find out that it's such a simple thing.

Thanks heaps.
Andrew

Yeah, this BB rocks, I have to say. How good was that rain, though?!

Regards,
Rusty.