Does anyone here OWN a MLCS pins and tails half blind dovetail and box joint jig? - Router Forums
 
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post #1 of 4 (permalink) Old 08-13-2014, 02:25 PM Thread Starter
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Default Does anyone here OWN a MLCS pins and tails half blind dovetail and box joint jig?

I am asking this very specific question because it is very specific to this piece of... er, jig. I bought this a very long time ago, and it has moldered on my shelf for years, until I made a trip to MLCS and got the parts I was missing in terms of guide thingies and router bits. So, I took it out of the box, and decided to do some ¼" box joints in ½" Birch Ply. This is a test cut, so I'm not fussy about the wood.

I read the instructions, as I have done many times, and slowly followed them one by one, leaving nothing out. I made up the setup boards clamped them under the front clamping bar, tightened the bar, and then went to move the edge guides so that the workpieces would be in the proper position when I took the setup piece out and put the workpiece in. I found I could not move the edge guides, because the screw and spring that hold the clamping bar put so much pressure on the setup guide that it is impossible to move smoothly, or at all.

Checked for a video that would show me how to set it up. There are none. There are no videos showing the thing in use. MLCS seems to have paid all its attention to the through dovetail jigs. Oh, I had to cut the ends off the knob to clear the template holding screw .

Th photos below show the parts I have for the clamping bar, the edge guide in place according to the manual, the order in which I assembled the clamping bar, the setup piece in place, and why it is impossible to move the edge guide. If you have one, please tell me if this is how it is supposed to look, or if I am missing something. I got this for half price, as it was a returned item, and the person who had it first may have mis-assembled it.

For now, I have removed the springs, as it causes no issues with the clamping bar or the safety of the jig, and I was ready to cut my first box joints when a thunderstorm came up, so I had to run for cover and pack it in. I have looked at all three manuals that I have (¼" and ½" dovetails, and ¼" box joints.
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Cheers,
Roger


I'm not slow, I'm pacing myself!

Isaiah 44:13 Another shapes wood, he extends a measuring line, he outlines it with red chalk. He works it with planes and outlines it with a compass...

Usual kit: Table saw, band saw, dual base router and table, lathe, various saws, planer, sanders, and a multitude of hand tools.
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post #2 of 4 (permalink) Old 08-13-2014, 04:44 PM
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Roger...from the pictures I would say the spring compresses too much and bottoms out, so to speak. Just to change symptom, take out the spring and see if it improves. If so, replace the spring with one that has less coils and more "travel"...or turn the bar over so the ribs are against the piece.

Or Mebbe you might be cranking down more than necessary. Unless it's the camera lens, the bar seems to be bowed a bit...

Just a thought...Nick...

Nick

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post #3 of 4 (permalink) Old 08-14-2014, 01:23 PM Thread Starter
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The bar is bowed a bit in the picture. I have stuck sandpaper tothe bar now, so I don't have to clamp as hard. After going through all my manuals, it appears that the spring isn't an issue when doing dovetails, as the edge guide is set with the clamping bar off the jig. For box joints it has to be on the jig, and I don't think the writer of the box joint manual took that into account when writing the manual. It does work with the srpings removed.

Thnaks for your reply!

Cheers,
Roger


I'm not slow, I'm pacing myself!

Isaiah 44:13 Another shapes wood, he extends a measuring line, he outlines it with red chalk. He works it with planes and outlines it with a compass...

Usual kit: Table saw, band saw, dual base router and table, lathe, various saws, planer, sanders, and a multitude of hand tools.
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post #4 of 4 (permalink) Old 08-14-2014, 02:18 PM
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Glad to help...good luck...Nick

Nick

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TEACH HIM HOW TO FISH and you feed him for his life time.
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