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Pipe Clamp Vise - Blum Workbench

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Forum topic by gtrgeo posted 12-22-2020 10:12 PM 531 views 0 times favorited 10 replies Add to Favorites Watch
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gtrgeo

158 posts in 1487 days


12-22-2020 10:12 PM

I am planning on adding a pipe clamp vise on the end of my workbench. I ran across the Blum Tool Co. line of benches and the quick adjustment feature on their cabinetmakers bench has me intrigued. Has anyone seen how this operates? He walks through the vise operation at the 1:00 mark of this video

I am assuming the pipes have a cross bar that catches on a rack inside the bench. The other option would be machining the rack on the pipe. Their website, however, shows the vise using spring loaded pins that catch in holes in the pipe.

I would really like to emulate the vise shown in the video by making the adjustment by turning the pipe clamp if anyone has seen this or has an idea of how it would be constructed.

Thanks, George


10 replies so far

View drsurfrat's profile

drsurfrat

569 posts in 243 days


#1 posted 12-22-2020 11:35 PM

It seems that he has put a series of (permanent) pins in the pipe and a notch that engages when pointing North and West, but open to freely move at East.

I can imagine a half circle plate firmly attached to the bench, and pins that rotate in and out at about 1 1/2” intervals.

-- Mike (near Boston) ... Laziness is the mother of invention, necessity is the mother of exhaustion - me

View woodbutcherbynight's profile

woodbutcherbynight

8831 posts in 3466 days


#2 posted 12-23-2020 03:19 AM

Interesting idea, have to think about how he did it. Watched the video but he never showed the bottom side.

-- Live to tell the stories, they sound better that way.

View therealSteveN's profile

therealSteveN

7503 posts in 1631 days


#3 posted 12-23-2020 06:05 AM

Just passing by, and saw the thread. I haven’t seen the video, just looked at the pics on the link page for Blum. Looks like a pass through clamp as well as I can see. They don’t show the far side, but I am thinking the other end of the clamp is pressing the other side of the bench.

Black pipe is typically sold in 10’ lengths, and the longest bench they talk about is only 90”. Being it is a torsion box design, you could easily stop the clamp against any of the interior support pieces, but doing that would leave a greater possibility to squeeze the torsion box, and take your bench out of square. Passing all the way through you could have heavier, or doubled stock on the outside walls to take the pressure of clamping without disturbing the torsion box. That’s how I would do it.

-- Think safe, be safe

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therealSteveN

7503 posts in 1631 days


#4 posted 12-23-2020 06:19 AM

Went back and watched the start of the video. At the 1:05 mark he is playing with the face vise, and you can see the back side of the clamps moving on the far side of the bench. So they do go all the way through.

The primary thing to know about that kind of arrangement is you always have to put a block on the far side of that vise, the same thickness as your work, or it will rack on you. IE: very uneven clamping pressure when you just put something on one side, and tighten it up. If cost is the driving aspect, then it may be a small penalty, but it is the reason people move to more expensive, and better balanced clamping on their benches.

On this video, also by Blum it clearly shows the pipe clamp through each side. Plus those legs look pretty spindly. Something wooden would be a lot sturdier.

https://www.youtube.com/watch?v=Lnul7hYbU5w

-- Think safe, be safe

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HarveyM

159 posts in 3079 days


#5 posted 12-23-2020 02:02 PM

Lee Valley sells something called a pipe vise. It doesn’t appear use the same mechanism, but it has a quick adjust using a foot pedal. There’s a illustration & a photo of it’s action on the website.

-- Just a Duffer

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Lazyman

6940 posts in 2444 days


#6 posted 12-23-2020 02:33 PM

Here is a picture from their website that shows the backside of the bench’s clamping mechanism.

I found it on this page.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View gtrgeo's profile

gtrgeo

158 posts in 1487 days


#7 posted 12-23-2020 04:32 PM

Thanks Lazyman!! I missed that page on their site. It looks like drsurfrat was on the right track. I will need to look at how something like this can be incorporated into an end vise as I really do not want to run pipe under the entire length of the bench.

Regarding clamping as a whole. My bench has become a bit of an experiment and I am really not looking at investing significant time or dollars in it. I have a fairly small shop and have been looking at ways to conserve space. I recently cut ~1ft off the end and 2 inches off the depth in attempt to reduce footprint and use the same base. I do have a face vice and dog holes up the leg on the right which have currently supported my needs. I am primarily a power tool worker but do enjoy taking a plane or chisel to the workpiece where it makes sense. I thought I would give a pipe clamp vise a try on the end as it is both cheap and may work with the small overhang I have without having to completely hack up the bench’s base structure as would be required with a vise.

At this point I am still attempting to figure out where and how I would like to clamp things. This will help me develop a design for my next bench.

View bandit571's profile

bandit571

28301 posts in 3740 days


#8 posted 12-23-2020 04:35 PM

And here I have been using a pipe clamp in my leg vise? Hmmmmm…

-- A Planer? I'M the planer, this is what I use

View Lazyman's profile

Lazyman

6940 posts in 2444 days


#9 posted 12-23-2020 06:34 PM

For an end vise in a solid top, You would have to cut a recess for the pipe regardless so you could probably insert a plate like that about a foot from the end so you don’t have to run it down the entire length. Either that or attach it to the bottom of the bench top somehow like most commercial vises are. In fact, for the face vise, I would probably do the same thing as you don’t need more than about a foot of movement.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View gtrgeo's profile

gtrgeo

158 posts in 1487 days


#10 posted 12-23-2020 07:08 PM

Lazyman – I have a crossmember in my bench’s base about 6” in from the end. I am thinking I could possibly add the slotted plates there. This would limit the movement but might be sufficient. My top is 2” thick. I may need to cut some trenches in the underside to keep the clamp head high enough. I will need to work this out between other ongoing projects.

Looking at the picture, I think I can likely pick up a couple of large flat washers and cut slots in them and drill countersunk holes for mounting. Still deciding if these will be 1/2” or 3/4” pipe clamps. Not sure about the pins through the pipe yet. His look to be pressed in, I may need to hit them with a tack weld.

Thanks, George

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