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"Swivel Dogs" prevent end vise racking

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Project by Oldtool posted 717 days ago 3727 views 30 times favorited 6 comments Add to Favorites Watch

When I posted my router sled project ( http://lumberjocks.com/projects/69304 ), the bench dog attachments in my photos caught the eye of a few individuals, and were named Swivel Dogs by “exelectrician”, so I thought I’d post these for anyone who might like to try them.
I started with 3/4” hard maple. The first step is layout, as shown the photos. The center of the hinge is located first, and I drilled a small 1/16” hole there as a future reference. I then re-sawed the outer hinge board, taking off 1/4” of material. (in a similar manner to that as shown in many articles on making bench planes) This allowed me to then use my largest Forstner bit to create the middle of this side, drilling from the freshly re-sawn side, taking out 1/4” of material. Then I glued this board back together.
The layout I used has 10 degree angles off the parallel to the back edge, so that rotation can allow clamping a board as much as 20 degrees off of a 90 degree cut. I then used the Forstner to remove a 1/4” of material from both side if the second board, and test fit this half of the hinge into the first half.
That is as simple as it gets, pretty much done, but I also decided to cut out openings to match my bench dogs, to prevent and possible slipping. I also added 80 grit self-adhesive sand paper to the face of the Swivel Dog, to help with clamping grip.
I intended to drill and insert a dowel or bolt in the center of the hinge, but found that these worked for me without a hinge pin. Also, for anyone wanting to apply a great amount of pressure, I also thought about making the hinge portion out of 1/8” tool steel stock, then bolting to the cross boards. I found that for me in this router sled application, all works fine as is.
Thanks for looking.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln





6 comments so far

View ajosephg's profile

ajosephg

1839 posts in 2156 days


#1 posted 717 days ago

Thanks for sharing. I was wondering about these also.

-- Joe

View TheDane's profile

TheDane

3646 posts in 2258 days


#2 posted 717 days ago

Great idea … thanks for posting!

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View shipwright's profile

shipwright

4828 posts in 1393 days


#3 posted 717 days ago

What a good idea.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View Bricofleur's profile

Bricofleur

1115 posts in 1788 days


#4 posted 716 days ago

This is a great design! I keep it in mind. Thanks for posting.

Best,

Serge

http://atelierdubricoleur.wordpress.com

-- Learn from yesterday, work today and enjoy success tomorrow. -- http://atelierdubricoleur.wordpress.com

View madts's profile

madts

1229 posts in 935 days


#5 posted 716 days ago

Those are just great. Thanks for the post

-- Thor and Odin are still the greatest of Gods.

View exelectrician's profile

exelectrician

1458 posts in 1022 days


#6 posted 715 days ago

Way more complex than I thought … with the lapped pivot. I thought a 2” dowel served as the pivot.
Beautiful job by the way.

-- Love thy neighbour as thyself

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