Veritas Double-Blind Mitered Finger Joint Jig

[Michael Kellough]

A timely release from Lee Valley that you can’t produce with a Domino or Shaper.

Not that you’d want to…

 

[ChuckM]

The release brought back a design tradition that has been missing for at least 5 or 6 years! [big grin]

Oops. Not so many years  Just 3.

 

[live4ever]

Been looking for clever ways to strengthen my miter joints.  This might fit the bill.

 

[Packard]

I have a lock miter bit that I have used just once.  I found setting up the bit to be time consuming and tedious. 

But this video makes it seem easy to set up, so I am going to try it again.  Once the set up is done, the bit does both the miter and the joining.  Much faster and the 45 angle is always the same.

I’ll try it out again pretty soon.

 

[rmwarren]

"A hallmark of fine joinery that no one will ever see..." All is right with the world again.

RMW

 

[ChuckM]

I received this free from a fellow woodworker who recently parted company with all his tools and lumber after more than half a century of woodworking:

[attachimg=1]

I'd be ordering the templates.... [tongue]

 

[cdconey]

Waiting for a company with red anodized Al-U-Min-ium to rip off the design and charge 8x the Veritas Price. 

I hope Rob has this patent pending.   

 

[mwolczko]

But this video makes it seem easy to set up [a lock miter]

The lock miter bit has to be exactly situated both up-down and front-back (relative to the fence), and the setup is specific to the stock thickness. Making an adjustment in one axis will affect the other because the cutter face is at 45deg to both.

Having setup blocks that match your stock and bit is clearly the best way to go. And once you have a good setup, it’s trivial to make setup blocks so that you can repeat the setup.

The tricky situation occurs when you don’t have a setup block, ie, first time around.
This video does not explain *at all* how to identify which of the four possible motions are needed to fix an errant setup.

Some years I wanted to try the lock miter and could not find a decent how-to anywhere, nor could I find pre-made setup blocks for the stock I had. I spent a long time adjusting the setup; it was very frustrating.

In the end I found a device made by Prazi called the Groove Center which makes first-time setup much easier.