Making a dutchman using an MFS / OF1400

butzla

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In my antique house, years ago, there was an apartment upstairs so a couple of the interior doors had deadbolts installed.  On a recent paint project, I decided to patch the holes where the deadbolts were installed.  I also was frustrated with the old latch hardware and door knobs so I decided to patch those holes where the old hardware was and install modern hardware.  And what better way to do this than with my MFS400 and OF1400 router?
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Here you see the MFS all set up.  I made the opening just a little larger than the hole.  To set the depth of cut, I move the router to the side and with the power off, plunge the bit down until it rests on the surface of the door.
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And then with a half inch brass bar, loosen the plunge rod and insert it between the rod and the stop and then tighten the depth rod.
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The MFS has some adjustable angle stops underneath, they help keep the jig in alignment
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The door is narrow so it was awkward to clamp, with the stops pressed firmly against the door, I used and F clamp on the left and a k-body on the right to help keep tension on the alignment stops.
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After I made the cuts, the result was a perfect half inch deep mortise.  For the uninitiated with the OF1400, this is how clean they cut, no debris left behind, excellent dust collection.  What a pleasure to use!
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I reset the mfs for the smaller mortises and also set the depth for 1/4" and made the cuts for the knob and keyhole
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I milled up some poplar dutchman and tweaked the size with my shooting board and block plane.  I also squared up the mortises with a chisel.
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After the glue dried, I planed the dutchmen flush with the door using my LA jack.  Very pleased with the way they turned out. The joints are air tight, no doubt the patches will be invisible once I paint them.  An easy task with the MFS!
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Nice post and a great tip, Jim - I'm amazed you were able to plane the dutchman and not affect the paint on the door!

The MFS is awesome for dados and dutchmen!

neil
 
Very nice documentation, Jim. And a great job as usual.

I think you just made the MFS move up on my acquisition list. Do you reccommend the MFS400 or the MFS700?
 
wow said:
Very nice documentation, Jim. And a great job as usual.

I think you just made the MFS move up on my acquisition list. Do you reccommend the MFS400 or the MFS700?

Depends on your needs of course,  I have the 400 but having both would be great!
 
This is not the same door but had similar problems.  When I patched the lockset on the side of the door, there was a slight void under my dutchman.  So when I went to install a modern lockset using a hammer and chisel,  that void made it impossible to chisel,  the chisel more or less bounced of the door like a trampoline. 
So I reached for my MFS again.  I snugged it right up against the latch plate and used a pattern bit to cut the mortise with my OF1010.  I had to use an extra bearing to keep it from wandering into the middle groove of the MFS.  This little jig continues to amaze me.  I should have done this in the first place, one pass and it fit like a glove!
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Very cool...I gotta look into the MFS. Thanks for sharing. Off subject...ever use one of those three hinge template (metal type porter cable use to make)...think I saw tommy or norm use one back in the 90's... Wonder if festool has anything similar.
 
Lee valley sells a hinge template jig with three templates attached to doome adjustable extrusions. Leigh hinge template jig by Veritas.
they work very well.

Nigel
 
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