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Vise Sizing

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Vise Sizing
the penguin Offline
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#1
05-05-2017, 12:22 PM
The in coming Rockwell mill, has a 6-1/2" x 24" table, looking for a good milling vise. I have 6" on the other 2 mills (a Jet JVM 836 and the infamous Franken-Mill), wonder on the best size for the Rockwell?? 4"?? or 5"?? or some other size.
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wawoodman Offline
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#2
05-05-2017, 01:06 PM
I have a 5" Glacern on mine.
Mike

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Vinny Offline
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#3
05-05-2017, 01:20 PM
I have a 5x24 table on mine and use a 4" screwless vise on it.
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EdK Offline
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#4
05-05-2017, 07:12 PM
I recently got a 4" vise for my mill. I've got a 6" Kurt vise but I can't lift it off the mill table without risk of injury so I got the 4" for the projects that don't need the capacity of the Kurt vise. Most of my projects don't need the 6" vise. Here's the link to the 4" vise I got from Precision Matthews.

4" Vise

I'm very happy with the vise. I ran a DTI across the fixed jaw and got less run-out than the Kurt vise has. Actually, I got no detectable run-out.

Ed
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Mayhem Offline
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#5
05-05-2017, 07:45 PM
(05-05-2017, 07:12 PM)EdK Wrote: ...Actually, I got no detectable run-out...

You did make sure the indicator tip was touching the jaw, didn't you? Big Grin
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EdK Offline
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#6
05-05-2017, 08:18 PM
(05-05-2017, 07:45 PM)Mayhem Wrote:
(05-05-2017, 07:12 PM)EdK Wrote: ...Actually, I got no detectable run-out...

You did make sure the indicator tip was touching the jaw, didn't you?  Big Grin

Yes. I couldn't believe it at first but ran the test a number of times.

Ed
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Mike E. Offline
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#7
05-06-2017, 06:27 AM
The most suitable vise I have for my mill's 6" x 32" table is a 4 1/2" Jones and Shipman model. Here are a couple of photos, with one alongside my 6" vise for comparison.


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Mayhem Offline
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#8
05-06-2017, 10:47 AM
Don't underestimate the bonus of the added mass of a larger vise.
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Mike E. Offline
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#9
05-06-2017, 10:57 AM
Most of the mass of my 6" vise hangs over the edge of the table, gets even worse when the jaws are opened.
Mike
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EdK Offline
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#10
05-06-2017, 11:13 AM
(05-06-2017, 10:47 AM)Mayhem Wrote: Don't underestimate the bonus of the added mass of a larger vise.

That's a very good point Darren. I use the Kurt vise when I need to do some serious hogging of metal no matter how small the piece I'm working on is.

Ed
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