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leg vise idea. Will this work?

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Forum topic by muddywaters posted 01-03-2016 01:32 AM 517 views 0 times favorited 6 replies Add to Favorites Watch
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muddywaters

6 posts in 345 days


01-03-2016 01:32 AM

Topic tags/keywords: leg vise question workbench

I am preparing to build a workbench and have an idea on how to do the leg vise. But I am aprehensive about going through with my plan since I have never heard of anyone doing a leg vise this way. And of course, to me, that is an indicator that there is something wrong with my idea. But of course I can’t see it. I plan to buy the large front vise hardware from Lee Valley and use it and it alone for my leg vise. Basically a front vise lengthened, and widened a bit, and mounted vertically rather than horizontally to an extra heavy workbench leg. I am using this to avoid wracking when clamping and to avoid the use of a lower support beam on the vise. Is there anything anyone out there can see wrong with this idea or is it doable?

-- Muddywaters, North Missouri


6 replies so far

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David Taylor

326 posts in 554 days


#1 posted 01-03-2016 02:02 AM

I don’t see why not… I don’t see how it avoids racking, though – wouldn’t you need a like thickness scrap on the bottom to totally avoid racking? And, If you don’t like the lower support beam of a traditional leg vise, why not a Criss-cross from Benchcrafted?

-- Learn Relentlessly

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shampeon

1718 posts in 1650 days


#2 posted 01-03-2016 02:15 AM

Front vises have those guide rails to keep the jaw parallel, which isn’t great for your project, because they affect the leverage and capacity of the leg vise. Why not use a LV tail vice screw? I guess I don’t see how it’s so bad to have the lower support.

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

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muddywaters

6 posts in 345 days


#3 posted 01-04-2016 01:19 AM

I have looked at the benchcrafted crisscross before and it is an awesome product as are all of there products. I guess I just had a hard time pulling the trigger on buying a leg vise support for that much. And the reason I don’t like the standard style lower support of a leg vise is that I view the leg vise as a machine I build myself. And with any machine I build I want it to be not only strong and to function well, but to be self sufficient. Meaning I don’t need to adjust a pins’ placement every time I use it. Throw a board into position and tighten. I know I have my own brand of crazy. I think I will probably just go with the crisscross. It works better than anything else I have seen. Thanks for the thoughts you guys.

-- Muddywaters, North Missouri

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shampeon

1718 posts in 1650 days


#4 posted 01-04-2016 01:42 AM

LJer boatman53 makes a chain-guide for leg-vises that is pretty slick. E.g.
http://lumberjocks.com/lysdexic/blog/31055
http://ancorayachtservice.com/?page_id=196

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

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John

166 posts in 1048 days


#5 posted 01-04-2016 02:22 AM

Simpler is better for any kind of vise. The crisscross seems like a perfect solution for those avoiding using a parallelguide pin. I don’t think your front vise idea would work very well. I know of one idea I saw online where a guy used a precision shaft with linear bearings with success.

-- I measured once, cut twice, and its still too short...

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muddywaters

6 posts in 345 days


#6 posted 01-05-2016 03:28 AM

I checked out the chain guide thing and do like it. But saw the full on kit is $150. Youch. I am ordinarilly not cheap but I am looking at this bench project from an overall price standpoint. Besides I have a wife to keep at bay. Ha Ha. But from what I saw it does work flawlessly. I did check out Matt Armstrong’s page at the wood wisperer about his linear bearing and steel shaft guide rod and really like what I saw. So I hit amazon and priced a 30 mm linear bearing and the matching rod. I think I am definantly gunna keep this setup in mind for a solution. Thank you all for the comments. I appreciate hearing from people that know what they are talking about for a change.

-- Muddywaters, North Missouri

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