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Bessey I-beam clamp question

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14 hours ago, schnewj said:

Someone, please, tell me why I would ever need something this heavy.

 

Because you CAN ;)

Edited by Chips N Dust

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  • John Morris
    John Morris

    Like Lew stated, as is with most if not all joinery, the two joints should slide together with little effort our just a few taps of a mallet. On rare occasions I have been known though to start W

  • 1 hour ago, schnewj said: Someone, please, tell me why I would ever need something this heavy. Because you don't have any, now?  Agreed. They're over kill for most shops, thou

  • 1 hour ago, DerBengel said: I am actually looking to get some 36" F-clamps that have the easy release,   go w/ pipe clamps..

Posted Images

I've never seen a need for those clamps. 3/4" pipe clamps are plenty good. But there was another need along with the pipe clamps.. and some years ago I solved that problem.IMG_7049.JPG.73b5f0c2ca520550012f2eecb82f49b9.JPG 

 

With this set up  I can use my vise grips from the top and the bottom when I am edge gluing to keep things lined up so I will have less flattening after the glue has dried.

IMG_7046.JPG.d30bced785819790f55910a921f4e31e.JPG

 

One more step is important before I am finished to let the glue dry. Using a rubber hammer I drive the boards down on to the pipes as the clamps are tightened. As long as I use a flat surface to start with, my table saw, all the pipes will be the same height allowing the glue ups to end up flat........Using 1x4" ash all the holes in the clamps and the ash wood does need to be exactly in the same places but hey, you are a wood worker and precision is your name!!!

   Now if you are using the f clamps getting line up clamps on both sides of the boards will be a problem. Not just anything under the clamps will work.... because the exact thickness is needed. With using the pipes I have built in the height requirements...

I just priced the new IBeam clamps at Highland Woodworking. Actually, the price is on par with a comparable Revo K. If I had to choose, I'd still go with the Revo's.

 

The Revo's are capable of 1500# vs. 7000#. If you can't do the job with 1500# ...

Wouldn't 7,000 lbs squeeze all the glue out of the joint, resulting in a weak glue-up?

John

1 hour ago, HARO50 said:

Wouldn't 7,000 lbs squeeze all the glue out of the joint, resulting in a weak glue-up?

John

I was thinking the same thing, maybe that is the limit they will go before they fail.

Herb

  • Author

I had thought about making some of my own, but I prefer to start with some stuff that is a little more precision to help me do a little more precision. I was using clothes line and it looked like a Japanese bonding technique!, but it worked!  :lol:  And I am tired of doing all of that.

I just saw the video for the first time, I like those clamps! I would have no problem having those in my shop in my clamping arsenal. Are there alternatives? Sure. But those are cool, I must admit, a bit more in cost than I thought they would be though.

10 hours ago, HARO50 said:

Wouldn't 7,000 lbs squeeze all the glue out of the joint, resulting in a weak glue-up?

John

I don't think you could ever squeeze enough glue out to weaken a joint, the more you squeeze the better actually, IMO. Crushing the wood fibers together while forcing the glue into the pours, is actually a good thing.

  • Author

Yeah, they are cool...LOL But I can certainly live with the pipe clamps! And yeah, I was also thinking about the glue being pushed out at a certain point! LOL

 

By the way...why is everyone saying 7,000 lbs.? I thought he said 700#?? I all ready deleted the E-mail or I woul...oh heck! I will go find the silly video...you got me curious now!  DOH! It's on the first page! hahaha Oh dang! I was in denial-he DID say 7K!!! WOW!!! NO WONDER he was able to force that mortise and tenon together! hahaha

 

And OH FRICK!!! They are expensive!!! Nevermindddd....ohhh a 2-pack...a little better.

 

OH!!! I just thought of a reason we might need 7K# of pressure!!! Some of us, I know I do, know some people with very thick skulls!!! Maybe we could finally get through to them! :blush:

Edited by DerBengel

6 minutes ago, DerBengel said:

Yeah, they are cool...LOL But I can certainly live with the pipe clamps!

I do have pipe clamps too, they are inexpensive, and you get a lot of torque.

Hey DerBengel, never worry about squeezing too much glue out, it's really not an issue, truly.

  • Author

Good to know! I really thought if it was too thin it would really have much grasp. But I definitely trust you on that. Thanks!

Just now, DerBengel said:

Good to know! I really thought if it was too thin it would really have much grasp. But I definitely trust you on that. Thanks!

The whole squeeze glue out theory is pretty much dead. It was an old school thought, and it seemed logical, but it's been long proven to be an urban myth of sorts.

  • Author

I tell you, every time we turn around, we learn we learned wrong and need to unlearn and relearn...no matter what the topic is! LOL

6 minutes ago, DerBengel said:

I tell you, every time we turn around, we learn we learned wrong and need to unlearn and relearn...no matter what the topic is! LOL

The only exception would be end grain to end grain glue ups, but that is not a very good practice to begin with. But if you must glue end grain to end grain, you would want to smear a thin coat of glue on both end grain joints to be glued, let dry in order to seal the end grain, then you can proceed to glue. But with end grain glue ups, I would still look for a better joinery method than glue, perhaps a mechanical joint and glue for end grain joinery.

9 minutes ago, DerBengel said:

every time we turn around, we learn we learned wrong and need to unlearn and relearn

Every day DerBengel, every day! Just when I think I am comfortable in my practices in woodworking, some one comes along and shatters my world with something better and more rational, and the worse, they tell me I have been doing it wrong all this time, and they are right!:lol:

I think they have improved the glue strengths considerably since the old horse hoof and hide glues and the stinky fish glues,

Herb

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I've read that a one molecule thick layer of glue is all that's necessary. But my spreader is only adjustable down too 3 molecules. So, I get some squeeze out.;)

 

28 minutes ago, Gene Howe said:

I've read that a one molecule thick layer of glue is all that's necessary. But my spreader is only adjustable down too 3 molecules. So, I get some squeeze out.;)

 

Spread the glue to 3 molecules, then go over it with the shopvac. It will take off the top 2 molecules, leaving the exact amount needed!

John

I just KNOW someone is going to try this! :rolleyes:

8 hours ago, John Morris said:

 Just when I think I am comfortable in my practices in woodworking, some one comes along and shatters my world with something better and more rational, and the worse, they tell me I have been doing it wrong all this time, and they are right!:lol:

Like you just did to me! If I ever bump into that shop teacher I'll give HIM a piece of my mind! :angry: If I have any left, that is.

John

With the new improved  glues, I have just held two pieces of wood tight for a couple of minutes and let set for an hour and when I broke them apart the wood gave loose and the glue held tight.

Herb

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