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Unisaw fence positioning

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Forum topic by JuckRuckas posted 03-27-2018 09:42 PM 852 views 0 times favorited 23 replies Add to Favorites Watch
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JuckRuckas

12 posts in 483 days


03-27-2018 09:42 PM

Okay so I just got a Delta 36-474 contractor saw with a unifence. This song came with a splitter and dust shroud together. It’s something that I’m never going to use. Since it doesn’t have a riving knife I am worried about kickbacks. I keep hearing about sliding the fence back toward the user to prevent kick back. Yet have not found a single thing about how far to slide it. To the middle of the blade? To the front of the blade? Any help would be greatly appreciated.


23 replies so far

View MrUnix's profile

MrUnix

7356 posts in 2557 days


#1 posted 03-27-2018 10:21 PM

Check out this Popular Woodworking article:

Table Saws: Why the British Think We’re Crazy

The fence mentioned “once available on this side of the Atlantic from Delta” is a veiled reference to the Unifence. The take-away from the article is “The far end of the fence is set so that it doesn’t go beyond the gullet of the saw teeth. “

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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JuckRuckas

12 posts in 483 days


#2 posted 03-27-2018 10:26 PM

Doesn’t go beyond the gullet of this saw blades? That’s the only thing I could find and that’s not making any sense to me

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MrUnix

7356 posts in 2557 days


#3 posted 03-27-2018 10:48 PM

Doesn t go beyond the gullet of this saw blades? That s the only thing I could find and that s not making any sense to me
- JuckRuckas

What is it that you don’t understand? Maybe the description in the pamphlet linked to in the article will do a better job – “To prevent kickback, the front of the fence must be set no further than the base of the saw blade gullet at table level”.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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Ripper70

1262 posts in 1266 days


#4 posted 03-27-2018 10:55 PM

-- "You know, I'm such a great driver, it's incomprehensible that they took my license away." --Vince Ricardo

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JuckRuckas

12 posts in 483 days


#5 posted 03-27-2018 11:04 PM

So right past the front of the saw blade?

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JuckRuckas

12 posts in 483 days


#6 posted 03-27-2018 11:35 PM

Sorry what’s a gullet?

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MrUnix

7356 posts in 2557 days


#7 posted 03-27-2018 11:37 PM

-- Brad in FL - In Dog I trust... everything else is questionable

View Fred Hargis's profile

Fred Hargis

5499 posts in 2851 days


#8 posted 03-28-2018 10:48 AM

You should consider adding an aftermarket splitter to the saw. I had a 34-444 and found the OEM guard to be such a PITA I never used it. But I did add a splitter to it. That guard was still hanging in the pace I put it when I sold the saw.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Nubsnstubs

1534 posts in 2088 days


#9 posted 03-28-2018 02:05 PM



So right past the front of the saw blade?

- JuckRuckas


Yep, not too much more than 3/8” according to my blades.

I haven’t been too keen on that set up, but it would be a great tool for cross cutting…..... Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

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JuckRuckas

12 posts in 483 days


#10 posted 03-28-2018 05:22 PM

cross-cutting? I thought that setup was only for ripping? I’m trying to stay safe and I’m a little nervous to use it for either one.

View Fred Hargis's profile

Fred Hargis

5499 posts in 2851 days


#11 posted 03-28-2018 05:41 PM

I think the European saws have a very short fence that functions much like the Unifence when pulled back. The vast majority of US fences sold do not do that, they go from front edge of the saw table tothe back edge….and thousands of rip cuts are made with out a problem. But those cuts are made with a splitter or riving knife. There are also many of them that result in kickback. That can have a few different causes, but the main one is the absence of the splitter or riving knife. The saws now sold in the US are required to have the riving knife since it’s usually left in place more often.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Woodknack

12770 posts in 2738 days


#12 posted 03-29-2018 12:35 AM

Re :crosscutting, you pull the fence back behind the blade so there is no pinching. The Unifence is a kickass fence, learn its benefits and you’ll love it.

-- Rick M, http://thewoodknack.blogspot.com/

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Nubsnstubs

1534 posts in 2088 days


#13 posted 03-29-2018 02:49 PM



Re :crosscutting, you pull the fence back behind the blade so there is no pinching. The Unifence is a kickass fence, learn its benefits and you ll love it.

- Woodknack

You won’t find a better explanation than that in bold. And that goes for any type of equipment you may own…........ Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

View jimintx's profile

jimintx

913 posts in 1942 days


#14 posted 03-29-2018 03:13 PM

I agree that referencing the gullets for this set up is somewhat vague. After all, the blade has gullets all the way around! I do expect that the intent is to not extend the fence past the valley of the gullet on the leading edge of the blade.

I usually pull my unifence back to make the outfield end of the fence about and inch behind the leading edge of the blade. That does make it some past the valley of the gullet first encountered. This is consistent with what I see in the picture that Ripper posted above. I will start to make rips with the fence end set back near the leading gullet and see if there is any difference noted. I doubt it.

-- Jim, Houston, TX

View teejk02's profile

teejk02

501 posts in 1483 days


#15 posted 03-29-2018 09:20 PM

Wow…I’ve had a Unifence for about 15 years now and I never got anywhere near that “gullet” thing (and have never had an issue other than a few boards that were internal stressed and wanted to close the kerf…that I learned to recognize and abort the cut). I’ve never touched the alignment on that fence but do notice it came from the factory with a slight bevel such that only the bottom part of the fence touches the board. I think I’ll keep doing what I have been doing.

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