Dubby for Shopsmith

jtomwoods · Post by **jtomwoods** » Mon Jul 30, 2007 3:27 pm

I've read a number of posts relative to sliding cut off sleds. Has anyone used the single dubby (or double dubby) cut off fixture from In-Line Industries? I understand they have a model for the Shopsmith.

chiroindixon · Post by **chiroindixon** » Mon Jul 30, 2007 4:28 pm

I have had one for years. I like it and use it often along with several other sleds. My miter gauge I doubt I could find....

The Dubby could use a serious addition to the miter bar....the "coin" (S) which keeps a SS miter gauge or their crosscut sled in the miter track. (Miter Gauge washer, part number 514376) Several years ago, my Dubby jumped out of the track and a serious kickback resulted in a hospital stay and surgery.

It took me a long time to figure out what happened. When I did, the Dubby miter bar went to a machinist neighbor who outfitted my Dubby with two "coins", one fore, one aft, that do not allow any dip or jump.

That's a feature that all sleds and like jigs should have. Therefore it pays to buy the SS miter bars rather than make your own.

That's my "fixed opinion"....not humble. More than happy to show doubters my left hand.

Doc

jtomwoods · Post by **jtomwoods** » Tue Jul 31, 2007 8:03 am

I have the Miter Sled by Incra which, like the Dubby, does not have the T-slot washer (coin). Thanks for sharing your safety concerns. I will keep your experiences in mind.

woodburner · Post by **woodburner** » Wed Aug 08, 2007 7:45 pm

The reason most miter bars do not have the "coins" or washers you are referring to is because most table saws only have straight up and down miter slots that the "coins" can not work in, compared to the better designed saws like Shopsmith that have miter slots that have what I call "miter bar catchers" that the "coins" slide into and hold the miter bar down into the miter slot, preventing the miter bar from sliding out or tipping up and causing a disastorous catch.

The best way to describe the Shopsmith miter slot is an upsidedown "T", compared to the usual "U" shape of most table saws.

Just some interesting tidbits I thought I would pass along.

charlese · Post by **charlese** » Tue Aug 28, 2007 2:32 am

Finally saw the Dubby. It is shown as the "Top Tool" in a comparison of miter gauges in this month's Wood Magazine.

The BIG problem I see with it is listed in the "Low Points" of the Dubby. I'll quote: "Cuts miters in only one direction-up to 50 degrees clockwise; a right-slot Dubby ($170) is needed to cut the other direction"

We all know that the only way to get good miters is to cut one side from the right slant and the other from the left slant. This negates ANY angle that is slightly off of 45 degrees. The only way I make miters that fit exactly is with the Shopsmith Miter Pro (555404). It really works well!!!:D

chiroindixon · Post by **chiroindixon** » Tue Aug 28, 2007 8:33 am

You are making the assumption that you will only cut 90 degree miters with four sided projects.

The Dubby is superb for cutting the angles for multi pieced odd or even numbered frames. Read "Planters, etc". Works well too doing the fine fit for floor and wall moldings when the walls aren't square and you have to "tweak" those cuts.

Once tuned, easy to do, the Dubby will cut no gap miters with ease. I've confirmed it many times using the "masking tape" method one of their instructional videos teaches.

The Dubby is also a very good regular crosscutting sled.....I bought a "right" since that is the side of the blade I'm used to.

BTW...I own the SS Miter Pro and Crosscut sled. They all have their place....and quirks.

Doc

scottss · Post by **scottss** » Tue Aug 28, 2007 8:45 am

Doc is the dubby setup for a shopsmith? You know miter bar. Where can I get info on this? You say you have the ss miter pro do you like it? I built one just like it years ago for my contractor saw but sold it.

scottss · Post by **scottss** » Tue Aug 28, 2007 8:47 am

Sorry I guess I should of read all the post.

charlese · Post by **charlese** » Tue Aug 28, 2007 7:24 pm

chiroindixon wrote:You are making the assumption that you will only cut 90 degree miters with four sided projects. ...
Doc

You're correct! I was making that assumption. (45 deg. angles) Sorry about that!

Also, as I reported, the Dubby is the magazines pick for "TOP TOOL". So it is obvious, some people really like it and find it useful.

I hope you don't mind if I continue to use the SS miter gauge for 22 deg. cuts etc. I sure do like the idea of cutting one side of a joint from one side of the blade and the other part from the other side. This sure compensates for slight errors in angles.

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