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Gluing multiple slabs

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Forum topic by Woodson59 posted 12-05-2021 12:48 PM 410 views 0 times favorited 9 replies Add to Favorites Watch
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Woodson59

64 posts in 2463 days


12-05-2021 12:48 PM

So I can joint something, I can set u my saw, I’ve got a rather nice glue up table for 16 bar clamps. But I’m really trying to glue more that 2 slabs a day.

I’ve seen people with professional edge gluing set-ups use bailing wire or strapping to hold pressure and move the slab/panel to a drying rack.

Anyone know what wire to buy or strapping? Suggestions? And how to get strapping tight enough to not drop clamping pressure. I want to push together a butcher block slab, put a strapping or wire on it immediately, move it to a rack and repeat


9 replies so far

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Tony_S

1556 posts in 4416 days


#1 posted 12-05-2021 01:30 PM

Define ‘Slab’, and how many slabs do you want to glue up in a day? The solution could be as simple as a fast set glue.
Never seen any type of production shop use wire or strapping for this purpose, although I’m sure somewhere…somehow, there is.

-- Lj's...The place to post what you had for breakfast and then do your utter best to complicate the hell out of the simplest of questions.

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Lazyman

8781 posts in 2720 days


#2 posted 12-05-2021 02:02 PM

I think that as long as it is not really cold, you are not using oily exotic hardwoods that do work as well with PVA wood glues and your joints are nice and tight, you should be able to unclamp it within a 2-3 hours so you can start your next glue up. If you want or need to keep it in clamps longer and do not have enough clamps to just move the clamped panel out of the way so you can start the next one, an option would be to make some bowed cauls (bow clamps) that only require 2 clamps to maintain a uniform pressure as it sits or leans somewhere else in your shop. The article I linked to shows them used across the panel but you can use them for edge clamping too.

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

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shipwright

8780 posts in 4131 days


#3 posted 12-05-2021 03:16 PM

Hot hide glue, rub joints, no clamps. :-)

-- Paul M ..............the early bird may get the worm but it’s the second mouse that gets the cheese! http://thecanadianschooloffrenchmarquetry.com/

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Woodson59

64 posts in 2463 days


#4 posted 12-05-2021 05:04 PM

I’m gluing up 15”x60”x1.5” butcher block slabs, I need 10 or so done and yesterday

Fast drying glue is problematic bc My open time on these is on the edge of my titebond III open time. Hide glue would be brilliant if it played well with water

View JackDuren's profile

JackDuren

1774 posts in 2292 days


#5 posted 12-05-2021 05:10 PM

You needed these yesturday but only have 16 clamps? How fast can you rotate clamp?

View Lazyman's profile

Lazyman

8781 posts in 2720 days


#6 posted 12-05-2021 06:19 PM

How wide a panel can you clamp at once? If you can do 2 at a time (30”) by leaving the glue out of the joint between them, that will at least double your efficiency. If you leave them in clamps about 5 hours, you could easily get 10 of them done in just over 24 hours with 5 hour naps in between. While you are waiting for the first set to dry, make some 65” bow clamps and you can extend the clamping time once you take them out of your clamping table. (assuming you have 4 more clamps for the bow clamps).

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

View Loren's profile

Loren

11369 posts in 4981 days


#7 posted 12-05-2021 07:29 PM

You might want something like this: https://www.amazon.com/Strapping-Banding-Machine-Tensioner-Packaging/dp/B011BJV0IE

My guess is the tensioner stretches the plastic while you crimp it and when released the plastic contracts. I’ve seen stuff pretty tightly strapped but mostly boxes which have some give so maybe you couldn’t get it tight enough for glue-ups. In that case you could use wedges to tighten up the strapping.

View Rich's profile

Rich

7744 posts in 1922 days


#8 posted 12-06-2021 03:26 AM

Since those are only 60” long, you could use two cauls at each end which would only require two clamps.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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Rich

7744 posts in 1922 days


#9 posted 12-06-2021 06:01 AM


Since those are only 60” long, you could use two cauls at each end which would only require two clamps.

- Rich

Sorry, I should have said on each side.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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