[Jerry]

Want to build a bench around a tree. The distance from flat to flat on the inner part of the octagon will be four feet. The seat part of the bench will be made from four 2x6's.

Need to know the dimensions for both inner and outer frames.

I made a small one just to see if I could do it. The boards were cut at 6 inch lengths, 22 1/2 degree cuts, which gave me a distance of 11 1/2" between the flats. Can't figure out how to expand that to the larger size w/o a bunch of trial/error.

Once I get the proper size of the two octagons, the bracing on the inside will be easy.

Can you help me?

Jerry

 

[Laranie Labs]

Sorry Jer...failed geometry!

Let me see what the kid sitting next to me writes down, then I'll have an answer for you. :lol:

Larry

 

[Duckhunter_]

Finally a topic I can help with.

I am new to training and have only ran 3 seaoned hunt tests which we passed. I read this site daily learning from the pro's.

To answer your question, to calculate the inside dim. take the flat to flat dimension and divide by the tan. of 67.5 degrees. 48" between would be 19 7/8 on inside of miter, figuring 5 1/2" wide board long point should be around 24 7/16. Second frame should be 24 7/16 + extra on inside of miter, allow extra for small space between 2x6's.

 

[Gun_Dog2002]

Finally a topic I can help with.

I am new to training and have only ran 3 seaoned hunt tests which we passed. I read this site daily learning from the pro's.

To answer your question, to calculate the inside dim. take the flat to flat dimension and divide by the tan. of 67.5 degrees. 48" between would be 19 7/8 on inside of miter, figuring 5 1/2" wide board long point should be around 24 7/16. Second frame should be 24 7/16 + extra on inside of miter, allow extra for small space between 2x6's.

You lost me at finally...

/Paul

 

[Jerry]

L.I.B a concrete structure that a fish runs into!!!!

I love this Forum!!!

Thank you very much.

Now Sweet Bride will get off my backside and once again think I'm the smartest guy in the world. :twisted: :twisted:

Jerry

 

[Illinois Bob]

You helped me with emoticons so I'll help you.Try this:
Assuming 5 1/2 inch board and a 1/4 inch gap between boards,
Inside board measures 48" and 52.556"
Next board 52.763 and 57.320
Next board 57.527 and 62.083
Outside board 62.290 and 66.847
Angle is 67.5 degrees 8)

 

[Illinois Bob]

Wait a minute.I think it was Uncle Bill who helped me.That's OK Jerry,you can still use those numbers.

 

[Duckhunter_]

If the inside boards are 48" apart (48" dia tree) and you figure 5 1/2" boards with 1/4" gaps in between, the dimensions would be:

19.882, 24.438 1st board
24.645, 29.203 2nd
29.409, 33.966 3rd
34.173, 38.729 outside board

I hope this is a little clearer.

Wayne

 

[Buzz]

If the inside boards are 48" apart (48" dia tree) and you figure 5 1/2" boards with 1/4" gaps in between, the dimensions would be:

19.882, 24.438 1st board
24.645, 29.203 2nd
29.409, 33.966 3rd
34.173, 38.729 outside board

I hope this is a little clearer.

Wayne

Now you're cooking with gas...
I divided 48 by (1+2sin45). That must be how EE's do it. :?

 

[Gun_Dog2002]

Geez, this bench creation is complicated. I felt good when I came up with this...I can't imagine a octowhatever bench...

/Paul

 

[Jerry]

Now wait a minute!!

I don't care what length the top (seat) boards are!

I'm trying to build the frame to hold those top (seat) boards.

Gonna have some posts in the ground to hold the two frames with braces to tie them together. Then I will cut the top (seat) boards to whatever length they need to be with the proper angle.

Was making some good progress on the smaller octagon then a storm blew in and had to quit.

Jerry

 

[Gun_Dog2002]

So the hard part was getting the crank to seize just right to hold the pistons in place and still get the heads off. I can't tell ya how many motors i went through to get that just right...

/Paul

 

[Buzz]

Here's a hexagon tree bench. Try to picture two additional sides.

Just trying to help regards...

 

[Jerry]

I found plastic ones I could buy. That's no fun.

I want to build it all by my ownself and make it strong so fat people can sit on it.

My little portion of the bench will have about a foot of foam rubber on it!!!

Jerry

 

[Polock]

I found plastic ones I could buy. That's no fun.

I want to build it all by my ownself and make it strong so fat people can sit on it.

My little portion of the bench will have about a foot of foam rubber on it!!!

Jerry

I ain't sittin' on no bench that faces a tree..................that's like being in TIME OUT................... :roll:

 

[Gun_Dog2002]

I want to build it all by my ownself and make it strong so fat people can sit on it.



Jerry

Cool, I'll bring my fat ass and together we'll sit with you and your foam...Might take me some time cuz my ass is needing another shave and if I'm coming all that way I might as well stop by and let jello babe pet it....

/Paul

 

[Jerry]

LOL, you and my friend from Conroe, Ignas Ciegeilski, can sit next to each other facing the tree and the rest of us will look the other way.

Jerry