Box joints

Lbob131

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Joined
Jul 18, 2012
Messages
616
Williamng  explains  that  he cuts  the fingers  6 thousands  of an inch  smaller  than  the  openings.

How can he achieve  this without  removing  or adding shims  between the dado stack  when one side is cut?
I
 
Thank you William NG!

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Walnut with Pecan with  a remainder on the bottom but it's not a bother.

Best one so far as I'll be making more.

Thanks again Mr. Ng!

 

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Looks fantastic  waho.  Very neat  and no breakout.

Do your dado blades  have flat tops?
 
Thank you  Lbob131!

It's an Oshlun brand that has flat tops for the center chippers and the outter blades

have flat tops in certain locations.

I'll save the templates for the 3/4" dados and now I'm making a 3/8" dado

templates.

The last picture is a table I made for my girlfriend's sewing machine and she likes it.

[attachimg=1]
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When you  bump the fence  slightly  to make the adjustment  you lose  the zero  clearance  to some degree.

A setup  where  the  holding  peg is adjustable  I think would be better. 
Or perhaps a sacrificial  insert  for differing  widths  of  grooves  and  interchangeable  holding pegs.
 
I cut these super fast using an Incra positioner.  It actually takes very little skill so this aint braggin.
 

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It  looks like they have it all sussed.
I  like their IBox.  The setting  automatically  adjusts  for  dado blade  width  and pin  width at the same time.
Very clever.

I don't  think  its available in the UK.
And the hinge crafter is a neat device also.
 
I got a precision plate that the allows the positioner to be placed on and removed from my mft quickly and it's always square once set up.  I made the router table to slide onto the extrusions on the mft and hung an OF2000 for crazy power.  The "Wonder Fence" attached to the positioner has built in dust extraction, spit fence & off set fence (jointer setting) ability and can be removed so I use it as a repeatable set up table saw fence for my contractor table saw that I use on the other side of the mft.  The things I really love about the positioner is all the different box, dovetail and double dovetail patterns built in to it.  It makes a humble carpenter look like he's good at something.  Most of the ideas for this "jumbo mft set up" i got right here on the FOG. 

[thanks]
 
William, great video.  I bought the Leigh Dovetail and M&T jig a long time ago and upgraded it over the years but, I have to agree with you about router noise.  I have the Forrest Dado King set which I should be using more, thanks for the reminder of what I purchased that set.

Jack
 
They sure look cool now, but I have to wonder how much glue one could end up with showing... The shop I work at we do rabbited butt joints. They're very strong, and in my hands there's no glue showing.
 
JeremyH. said:
They sure look cool now, but I have to wonder how much glue one could end up with showing... The shop I work at we do rabbited butt joints. They're very strong, and in my hands there's no glue showing.

A valid concern no doubt, that's why I finish the pieces before applying the glue.

:)
 
The real trick would be to make sure the glue squirts out to the outside, and be damn sure not to touch it. If it bubbles a little bit you wait 30~ minutes and you can scrape it off. If you try to wet rag it or wipe it away FORGET staining it...

I can see how cutting the fingers overly long, and doing what I just said would work if you then flush cutted it, perhaps.

Really though I sort of just want to check out the school, looks great!
 
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