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Bending Wood #1: Bending Windsor Chair Parts

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Blog entry by kenn posted 04-03-2010 09:30 PM 4910 reads 4 times favorited 12 comments Add to Favorites Watch
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These videos are bending continuous-arm (c-arm) Windsor chair parts. I use locally harvested, green, red oak that has been split and rived down to a workable size. Then I use a draw knife, hand planes, and spoke shaves to shape the oak piece. Here is the exciting part…

If cracks occur, they are repaired with thin CA glue and C-clamps. In the past few weeks, I’ve done five c-arms and four have needed repairs. These failures are common with this type of chair due to the extreme bend.

-- Every cloud has a silver lining



12 comments so far

View Kerry Drake's profile

Kerry Drake

164 posts in 1744 days


#1 posted 04-03-2010 10:03 PM

This video tells me it’s PRIVATE and won’t let me view it.

-- Kerry Drake, Loudon NH, http://thenickedfinger.wordpress.com/

View kosta's profile

kosta

946 posts in 2078 days


#2 posted 04-03-2010 10:21 PM

if you click on your video and hit edit you can set it to public

-- kosta Virginia Beach, VA http://www.kostasworkshop.blogspot.com/

View Karson's profile

Karson

34902 posts in 3124 days


#3 posted 04-03-2010 10:50 PM

Not able to view it.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †

View kenn's profile

kenn

788 posts in 2443 days


#4 posted 04-03-2010 11:41 PM

the videos are now fixed. sorry about that

-- Every cloud has a silver lining

View Karson's profile

Karson

34902 posts in 3124 days


#5 posted 04-04-2010 12:14 AM

How long was the wood in the cooker.

Did you preview the wood to determine how the grain structure would be aligned at the point of the greatest bends.

Have you ever used a strap that was held against the wood to keep the pieces from de-laminating.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †

View kenn's profile

kenn

788 posts in 2443 days


#6 posted 04-04-2010 04:41 AM

I cooked the wood about 25 minutes in the steam. By splitting the log and working it down to managable size through splitting and riving, I have followed the grain throughout the process. So I’d say I pay particular attention to the grain structure. However I do not concern myself with face vs. edge grain in the orientation of the piece in the bending form. If I see a pin knot or a curve in the piece before bending, I put these against the form (Convex part of the wood against the form). I try to use a strap on parts with one curve, it helps alot, it reduces the need to make repairs to the piece to about 20% from 80%. Of course, us woodworkers know that key to being a good craftsman is hiding your mistakes. Thanks for the interest, I’‘ll try to post a video of the bending with a strap soon (especially since I had to get my kids to teach me how to do this video post thing :)

-- Every cloud has a silver lining

View Luke's profile

Luke

540 posts in 2017 days


#7 posted 04-04-2010 06:20 AM

It was interesting listening to her count and seeing the video timer go for three seconds for every one she counted.

-- LAS, http://www.abettersign.com

View kenn's profile

kenn

788 posts in 2443 days


#8 posted 04-04-2010 07:15 PM

She was counting in true seconds from her phone, but it was rushing me to follow with the real time so I made her slow down. The purpose is to bend slow, not keep real time evidently. FYI my kids have been mocking my lack of time skills as you pointed out.

-- Every cloud has a silver lining

View Skylark53's profile

Skylark53

2565 posts in 1784 days


#9 posted 04-04-2010 11:21 PM

Kenn, thanks for the video and congrats on getting help from your kids. I’d say you are most likely a very good chair builder and an exceptional father. Good teacher, too- I learned a lot.

-- Rick, Tennessee, John 3:16

View Broglea's profile

Broglea

667 posts in 1814 days


#10 posted 04-08-2010 06:48 AM

Thanks for posting the video. I can see me making one of these in the future.

View herblapp's profile

herblapp

2 posts in 1577 days


#11 posted 08-03-2010 07:47 PM

I see you are a Dunbar refugee. I was surprised at how slowly you do your bending. I’d have thought the time to you took to get the bow bent would have caused the arms to have cooled too much contributing to the delaminations you experienced? Just my 2 cents. I like the fact that you got your son into the bending….great dad behavior!

View herblapp's profile

herblapp

2 posts in 1577 days


#12 posted 08-03-2010 07:49 PM

Oh Ken, forgot to mention I’m creating a new web page for some of the work I’ve done. It’s www.herblapp.com It’s still being developed and will get some more work when the weather finally turns cool if that ever will happen!

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