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double wagon vise thought... will it rack?

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Blog entry by John posted 826 days ago 3677 reads 0 times favorited 5 comments Add to Favorites Watch

...
using a vise screw like this http://www.leevalley.com/US/wood/page.aspx?p=41664&cat=1,41659

what do think? will it rack?

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-- John - Central PA - http://affyx.wordpress.com



5 comments so far

View Jimi_C's profile

Jimi_C

506 posts in 1838 days


#1 posted 826 days ago

Anything will rack if you only have pressure on one side of it. Those vise screws are pretty inexpensive, it might just be worth it to get two and put a wagon vise on each side at the end. I assume you’re looking for the benefit of having an end vise with dogs on the top of it so you can clamp large panels?

-- The difference between being defeated and admitting defeat is what makes all the difference in the world - Upton Sinclair, "The Jungle"

View Andy Panko's profile

Andy Panko

85 posts in 925 days


#2 posted 826 days ago

The racking may be minimized if there is no play between the wagon blocks and the block openings. But still, there will be at least some racking. I agree with Jimi C; use separate vise screws.

-- Andy Panko, Edison NJ

View John's profile

John

341 posts in 2401 days


#3 posted 826 days ago

yes the idea was having the option for large panels

if i ever did this, i think i would would bias the screw toward the front (since that “jaw” would get more use) to minimize racking there and when using both racking shouldn’t be an issue on squared boards

BUT, you guys are right, at $35 for the screw versus gobs of hours trying to convert my sketch into something usable, it’s a no brainer to avoidall the potential issues

thanks for your feedback!

-- John - Central PA - http://affyx.wordpress.com

View kaiser's profile

kaiser

8 posts in 828 days


#4 posted 826 days ago

I’d have to agree with all of the above. When clamping something square in a twin screw there would be no racking. What I like about have two independent wagon vises is for clamping irregular panels. I onlly have one wagon vise on my bench and wish I would have put 2 independent ones.

View Bertha's profile

Bertha

12951 posts in 1296 days


#5 posted 826 days ago

I think it’ll bind like the devil. Cool thought, though.

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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