Sacrificial fence on a Unifence
Hello
My saw has a Unifence. The sort that can be flipped flat on its face.
It does not have an opposite side parallel to the fence. So I can’t clamp stuff to it.
On rare occasions I would like to clamp a sacrificial fence to it. Does anyone here have any suggestions?
Thanks in advance,
Andrew
Replies
I too have a Unifence, it is really under appreciated and a great fence. To attach a sacraficial fence simply treat it like a giant t-track. I use a piece of aluminum that I drilled and tapped and some short flathead machine screws recessed into the fence. But some plywood and threaded inserts can probably do the same thing. Once you have it made it couldn't be simpler to use. Loosen the screws a half turn slide the fence on, tighten the screws and your ready to go.
I have a similar fence and don't have too much problem clamping things to it. It's a matter of getting the right length piece as you can only clamp at the ends - long enough to work, short enough that it will not bow in the middle.
Some solutions:
1: Double stick tape.
2: Drill holes through the fence for bolts (I did this for my band saw and it works fine as you can use a brad point bit to mark where to drill if a new fence is needed.
3. Build an 'overfence' box which you can drop over the unifence - if you make it out of 18mm ply you can simply screw sacrifical blocks to it.
4. Hot glue.
esch5995: Could you post a photo please? I'm having a hard time visualising it.
I guess I could try double-sided tape, haven't even considered it. But sometimes the simplest solution is the best :)
I don't have a photo; I have since modified my fence to hold the JessEm hold down rollers so I can't rotate it anymore. but this SketchUp image should give you the idea. You can make it as elaborate as you like, cover it with laminate, make it taller, add a t-track, etc. the principle is the same.
I simply clamp a piece of MDF to my Unifence. The clamps limit me to material that's less than 2 inches thick but it's never been a problem for me. If I needed more height, I'd drill a few holes in the Unifence so I could replace the clamps with recessed screws.
I agree with esch5995 -- it is a great and a greatly underappreciated fence. As others also said, clamping can work.
A long while ago I purchased an aluminum extrusion that replaces the existing aluminum fence. Works great and gives me a place to attach not only a sacrificial fence using hex bolts, but also hold downs/feather boards. Looks like they don't have them in stock at the moment, but maybe find a used one or different supplier?: https://www.ptreeusa.com/tablesaw_unifence.html
I recently reached out to them about this fence. It sounds like they should have them back in stock in a month or so.
Aluminum extrusion and t-slot heaven: faztek.net Plan to spend an hour.
Wow. I think those guys made the frame for the Flux Capacitor.
Good info. I’ve been wrestling for a while now how to rig up an L fence that would be solid on my unifence. I’ve drilled three holes in the tall side of the extrusion for a sac fence. Works fine. Maybe I can rig up something similar to esch.
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