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Face vise: why is the screw off center?

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Forum topic by Brett posted 499 days ago 851 views 0 times favorited 7 replies Add to Favorites Watch
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Brett

620 posts in 1282 days


499 days ago

Many traditional face vises look like this:

The lead screw is not centered between the guide rods. (Other face vises have the lead screw in the center, but many don’t.)

Anybody know why? (This is a question, not a quiz.)

-- More tools, fewer machines.


7 replies so far

View LeChuck's profile

LeChuck

417 posts in 1661 days


#1 posted 499 days ago

I believe this helps against racking.

-- David - Tucson, AZ

View Brandon's profile

Brandon

4137 posts in 1550 days


#2 posted 499 days ago

So you can stick a (relatively thin) board in there vertically and work on the end. At least that’s my understanding.

-- "hold fast to that which is good"

View Brandon's profile

Brandon

4137 posts in 1550 days


#3 posted 499 days ago

From the Lee Valley page for their front vise:

The larger vise has an offset center screw to allow vertical clamping without skewing.

-- "hold fast to that which is good"

View LeChuck's profile

LeChuck

417 posts in 1661 days


#4 posted 499 days ago

Yeah, I don’t think it’s about placing a long thin board between the screw and bar, but if the screw is offset to the right, then you will have less racking/skewing when you place a vertical board on the right side of the vise. At least that’s my understanding.

-- David - Tucson, AZ

View Loren's profile

Loren

7235 posts in 2247 days


#5 posted 499 days ago

Maybe to emulate the old shoulder vises. One could make
a longer jaw on the right and perhaps with the screw
closer it would work better for vertical clamping of
boards for working on the end.

-- http://lawoodworking.com

View Chris's profile

Chris

183 posts in 2685 days


#6 posted 499 days ago

cool, learned something new

-- Chris Harrell - custom callmaker "Quacky Calls" Eastern NC. http://www.quackycalls.com

View Marty5965's profile

Marty5965

158 posts in 544 days


#7 posted 495 days ago

Loren hit it on the head. It is intended so that you can put on an asymmetric chop for through clamping.

-- Marty, Columbus, OH, learning every day....

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