Unifence Troubles

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Forum topic by Silvo posted 11-24-2009 10:00 AM 3425 views 0 times favorited 2 replies Add to Favorites Watch
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19 posts in 3346 days

11-24-2009 10:00 AM

Topic tags/keywords: unifence

I bought a Rockwell 34-761 with an older style Unifence on it. I purchased it for 380 and thought it was a pretty good deal considering its a 83-651 3 hp single phase motor and the front rail is 83” long. I have no idea how old it is but im assuming its about as old as I am.


So to get to my question. For some reason the fence will not completely lock in place. There seems to be a 1/32 of an inch tolerance issue that is stopping it from locking in. Right now the fence doesn’t even have the nylon slides becuase they are missing. I have to order the nylon slide assembles to make the fence functionable but I don’t know how they are going to fit if I can’t even lock it in now with nothing between the rail and fence head. This is the first unifence that I have ever worked with so this may even be normal for all I know but this is how far it locks down. I would assume that its designed to continue until it reaches the portion of the cam that is flat, but I don’t know.

Has anyone experience this before? Do I have the wrong rail? Or is this as simple as just replacing the washer that the cam rides on? I wouldn’t imagine that I should have to change anything, the fence should work fine without any modifications.

I have the older style rail.
Old Style on Top

The rail and its thickness.
Rail thickness

The tolerance between the locking lug and the lip of the fence body when the locking lever is engaged.

2 replies so far

View dryhter's profile


74 posts in 3843 days

#1 posted 11-29-2009 06:31 PM

Hey Silvo,
Start here LINK
I had a similar problem with my Bismayer and did what you thinking. added some shim stock in the appropriate place to make positive contact. I would be looking at that allen screw to see if that allows for adjustment.

Some more info

And this might just be the solution

anyways Good Luck!

-- Chips and Shavings/ see you at

View BlankMan's profile


1490 posts in 3593 days

#2 posted 11-29-2009 07:00 PM

You might be able to make up that 1/32 by tightening the adjustments used to make the fence parallel to the blade by the 1/32 each. That will move the head away from the rail by that much which then should help it clamp tightly.

-- -Curt, Milwaukee, WI

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