Hello, I need to build a trellis that has an 8′ diameter arch in the center. The arch is over a walkway leading to a front porch and will be used to guide a vine over the walkway. I would like to know what would be the best way to fabricate the arch? I want the wood for the arch to be approx. a 2×6. Thank you
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Like this waterwheel I did several years ago you'll need to segment the arc tenon and then rout the radius.
You'll have a much smaller scale than this 13' radius but basically the same idea.
Thank you for the response. What type of glue (adhesive) did you use between your arc sections?
I used a polyurethane glue.
Did you actually build a working waterwheel that generates useful energy or is it just a decorative item?
Just ask, because I design a few waterwheels at work to use irrigation water in a ditch to run fish excluder screens to keep the fish out of the ditch, and am always interested in waterwheels and norias.
This was a decoration I built according to a sketch from the owners architect. I wasn't allowed much input as to materials to be used or even allowed to go down to Durant ,OK to install it. The wheel was actually cut at the bottom to appear to be in a stream beside the house. Later a pump moved water over it. I got paid well but would have liked to have installed it.
Just an illusion.
Nifty spiral upshear router bits there. I'm surprised you didn't use solid wood for the floating tenons. I always have but maybe it doesn't matter.
Thought about it, worried about grain direction. Then considered biscuits being compressed birch. Decided to try baltic birch with tight mortises and expanding poly. glue.
I'd hoped to had some feed back by the end of that year wether this was all a bad idea but there was nothing. There's been nothing now for several years I've assumed all is still ok. I might try check with the Archi and find out.
Edited 7/30/2008 8:03 am by jagwah
do you mean something like this?
Or is the ceiling to be the arched lattice?
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The best way?
Thin laminations of white cedar with recsorcinol glue over a curved form in a vacumme bag.
What do you have to work with?
...or like this?
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It's 8' across, but I didn't want it to be too high so I went with a flatter curve. Ripped dry redwood 2x4 into 1/4 x 4; glued using a form & epoxy. Around 12 layers if I recall correctly. On it's 5th year with no problems (in mild weather California). The banksia rose is at least twice as tall now, holding it quite well.
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Edited 7/29/2008 11:28 pm by wrudiger
Edited 7/29/2008 11:29 pm by wrudiger