Showing posts with label drawboring. Show all posts
Showing posts with label drawboring. Show all posts

Thursday, October 20, 2016

Breadboard Ends, Dowel Plates, And Drawboring

I'm back to the blanket chest now. I have been readying the frames for finish and leveling the floor among other things. Today I am attaching the breadboard ends to the top. Due to concerns about wood movement (the 18" wide top could expand almost 1/4") I decided to drawbore the breadboard ends to the top.

I first made some dowel blanks on the table saw.


I then used my spokeshave to make them approximately round and a bit oversize. Finding a good way to hold the piece was a little tough. I ended up putting them nearly vertical in the vise. A shaving horse would be nice for this.


I used a Lie Neilsen dowel plate to form the dowels from the blanks.


I found that one has to be careful to leave a bit of material on the blank to be removed by the dowel plate. It helped to start an end to give me a visual to work to.


If your blank is undersized you will not have a round dowel. Once the blank is ready you then hammer it through the appropriate hole in the dowel plate.


I made a test hole with the bit I planned to use and checked the fit of the dowel.


I marked out the hole locations on the BB ends and made the holes on the drill press.


With the ends tightly on the top I used the bit to mark the hole centers, removed the BB ends, and set the hole centers about 1/32" closer to the shoulder to draw the ends tight.


After drilling the holes in the tenons I widened the two outer holes to accommodate any expansion or contraction.


I then applied glue to just the center mortise and tenon. I also glued the dowels and drove them into their holes. After the glue set I sawed the dowels flush. Now I can plane the BB ends flush and size the panel (it's still a bit wide).


Thanks for taking a look. The chest is moving towards final assembly. I hope you check back again and see how it's going.