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The Latest BORK Blade Guard

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Blog entry by knotscott posted 493 days ago 2107 reads 0 times favorited 10 comments Add to Favorites Watch

I’ve had a BORK riving knife on my Shop Fox W1677 cabinet saw since it was new in 2008, and have reviewed it and the original BORK Blade Guard (BBG) here on LJ’s. The most recent version of the BBG includes enough updates that I thought it least deserved a blog. The basic design remains very similar to previous versions, but with some key changes. For those who don’t know, in a nutshell the basic BORK is a metal extension with a riving knife that fits over the swing arm of an older style table saw that predates a stock riving knife.

The most obvious change is that the materials have been upgraded from lighter aluminum to much heavier stainless steel on both the boom and the knife, making for a more robust product overall. The more subtle changes are the inclusion of a simple gauge that ensures the proper distance from the arbor to the riving knife when mounting the boom to the swing arm. It’s a very simple and effective device that eliminates the guess work of where the boom should be placed along the swing arm….it made the installation a lot simpler for me, and ensures that it gets placed properly and has the correct clearance from the blade. The height adjustment slot on the riving knife blade has also been changed from an open ended slot to a close ended slot. This change appears to be a safety improvement to prevent the remote possibility of the blade ever being launched in the event than an improper installation should lead to the blade contacting the riving knife. The blade guard itself is somewhat larger than earlier versions, but still retains its excellent view of the work piece, which is a primary reason that I actually use it! I had good success with even the earliest versions of Bob Ross’ BORK, but his latest is the most robust and easiest to install version yet.


-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....



10 comments so far

View Joe Lyddon's profile

Joe Lyddon

7676 posts in 2679 days


#1 posted 493 days ago

That’s an interesting Update to a standard Riving knife!

... a Riving Knife that can be raised & lowered!! That was the change wasn’t it?

Does it make it safer?

BTW, what does BORK mean… have not seen that before… (please don’t laugh at me…)

(... but, you can if you can’t hold it… LOL)

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View knotscott's profile

knotscott

5418 posts in 2002 days


#2 posted 493 days ago

Joe…what did you do?! BORK is an involuntary bodily function considered a social faux pas in some regions of the world! ;-)

Nah….It’s an acronym for Bolt On Ripping Knife. It’s not really a standard riving knife, it does raise, lower, and tilt with the blade. It’s a retrofit for older saws that didn’t have riving knives….next best thing to having one originally designed for the saw.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View runswithscissors's profile

runswithscissors

906 posts in 652 days


#3 posted 493 days ago

Actually, it rises higher than the blade, and drops lower than the blade, assuming you have set it level with the blade in an intermediate position (1” high, for example.) Of course you can adjust it to your chosen blade height, but it doesn’t automatically go there.

View knotscott's profile

knotscott

5418 posts in 2002 days


#4 posted 493 days ago

Actually, it rises higher than the blade, and drops lower than the blade, assuming you have set it level with the blade in an intermediate position (1” high, for example.) Of course you can adjust it to your chosen blade height, but it doesn’t automatically go there.

Yes, but not my enough to matter as far as I’m concerned. I rarely ever change the relative knife height. The pics you see with the blade raised and lowered were all taken with no adjustments to the knife,, and the knife is still in a good position at both ends of the spectrum.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View CronenBuildingCoPDX's profile

CronenBuildingCoPDX

21 posts in 569 days


#5 posted 432 days ago

I’m seriously considering getting one of these for my 221240. Either the BORK or the MicroJig.

-- CronenBuildingCo. Portland OR http://www.cronenbuildingco.com

View mrbreezeet1's profile

mrbreezeet1

54 posts in 779 days


#6 posted 291 days ago

I am thinking about one too.
What does it do, bolt to where the old blade guard bolted to?

View knotscott's profile

knotscott

5418 posts in 2002 days


#7 posted 291 days ago

It mounts to the swing arm.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View mrbreezeet1's profile

mrbreezeet1

54 posts in 779 days


#8 posted 290 days ago

Thats great, thanks,
Looks 0K to me, but there is not a problem using this with a cross cut sled is there?

View knotscott's profile

knotscott

5418 posts in 2002 days


#9 posted 290 days ago

Shouldn’t be a problem with a crosscut sled. The knife can be adjusted to sit very high, very low, or anywhere in between relative to the blade, and then it raises and lowers in conjunction with the blade. The only way it would interfere with a sled is if the knife were set very high relative to the blade and if the blade was raised very high, the knife might not allow the sled fence to pass without some interference.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View mrbreezeet1's profile

mrbreezeet1

54 posts in 779 days


#10 posted 290 days ago

Sounds good, thanks,
Tony

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