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HALF DOVETAIL POST BLANK

Project by kiefer posted 07-01-2011 02:17 AM 6761 views 4 times favorited 5 comments Add to Favorites Watch

WELL it’s summer and the outdoor projects need to get done .
Here is a new way for me of making up a post blank for the round posts I need for the planter boxes I am making for our back yard arbour.
I am using 2×6 and 2×4 construction lumber for this and I am cutting a simple half dovetail joint to help align the lumber during clamp up of the post blank which also increases the gluing surface .
It’s works very well as the pieces push them self together as clamp pressure is applied in one direction only
therefore I only need about half the amount of clamps that I would normally use and it speeds up the glue up process .
When the glue is dry I will plane this post to size and forty five the corners and the turn it round.

KIEFER



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kiefer

13 posts in 3112 days

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5 comments so far

View dfletcher's profile

dfletcher

128 posts in 3507 days

posted 07-02-2011 03:46 PM

Sounds like a lot of fun. You definitely have a great way of putting this together.

Do the dovetails make it stronger for turning? I imagine that the dovetails hold better, but don’t know much about turning, so….....

Definitely creative, though.

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kiefer

13 posts in 3112 days

posted 07-02-2011 05:15 PM

HI dfletcher
Yes this way of gluing up a post is easy .
The gluing area is increased by using the dovetail joint so it should be stronger also.
I use a router lathe for turning the post and the RPM of the post rotating is very low,see attached link ,

http://lumberjocks.com/projects/48548
and yes I am having lots of fun in the shop building stuff for our house !

KIEFER

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Grandpa

139 posts in 3002 days

posted 07-02-2011 08:45 PM

To answer the question about strength…yes this is stronger. Your have more surface glued. Measure the edge of a 2×4 (1.5”) and make the glue joint square. Then measure this and you will find you have about 2.5” of glues surface. this should be much stronger and also easier to align during the glue process. The dovetail itself probably doesn’t make the joint stronger in any way except in giving more area for the glue to adhere to.

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BTKS

39 posts in 3710 days

posted 09-07-2011 04:25 AM

This is too cool. Congrats on a suprisingly simple but effective way of making posts. Thanks for the post.
BTKS.

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josephf

9 posts in 2521 days

posted 04-20-2013 05:54 PM

could you give more info on how ends are centered and attached to lathe box

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