screws in cutting board

Do you see any problem putting decking type screws between slats when makin g a cutting board. This would be done to help hold it together while gluein g and for added strength and resistance to bowing. I seem to have trouble w hen I just clamp everything. It gets bowed. my plan would be to pre drill h oles and screw together 4 slats at a time (and also glue). Then I would att ach these sub assembles and glue them together somehow. Maybe inserting dow els for extra strength. Just been thinking. I am using maple.

Reply to
stryped1
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It would probably be better to first identify _why_ your cutting board bows when you clamp it. Could be the material is too thin, or more likely, your boards aren't square.

Reply to
Scott Lurndal

There are two reasons I can think of at the moment why your glueups bow...

  1. The edges aren't square
  2. Your clamps aren't set properly. If, for example, all the clamps go across one side of what you are clamping and if the pressure isn't at the middle of the edges, tightening the clamps will bow the wood. The easy way to avoid that is to alternate the clamps, top and bottom; i.e., one on the top, next (a distance away) on the bottom, next on the top, etc.

As you tighten the clamps, you should use a straight edge across the boards to assure all are flat; if not, you can tweak it by tightening/loosing clamps on the appropriate side.

As far as the screws go, I see no problem in doing so, just use something that doesn't rust.

Reply to
dadiOH

One possible cause of bowing could be your clamping pressure may be too high. To counteract the bowing, cauls positioned above and below your work piece and perpendicular to your clamps could solve the problem.

Reply to
Gordon Shumway

This gets my vote as most probable cause.

Reply to
Electric Comet

FWIW, when I was in high school we sent the initial glue-up through the jointer and planer to take care of Minor slippage.

Bill

Reply to
Bill

What thickness ? of maple. .. others mentioned clamping pressure .. .. perhaps more of a problem with thin stock ? John T.

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Reply to
hubops

Reply to
mungedaddress

Do you see any problem putting decking type screws between slats when making a cutting board.

--------------------------------------------------------- Yes, since they are totally unnecessary.

If you want to reduce "creep" in your glue up, break there job into multiple glue ups.

If the total glue up is 16 strips, then do 8 glue ups of 2 strips each.

When dry, do 4 glue ups of 4 strips each.

When dry, do 2 glue ups of 8 strips each.

When dry, proceed.

You have 16 strips glued together with minimum "creep" while making only a single joint with each glue up.

Lew

Reply to
Lew Hodgett

mungedaddress wrote in news: snipped-for-privacy@coper.com:

I would be concerned about rust, and with "decking type" screws I'd be concerned about what they're plated with (which most likely should not be anywhere near food).

If alignment is the issue, I'd use wood dowels.

John

Reply to
John McCoy

John McCoy wrote in news:XnsA405CE2843053pogosupernews@213.239.209.88:

I've been thinking about dowels since about the first post... No chance of ruining an edge because a blade knicked a screw. Biscuits or dominoes may also be used.

Puckdropper

Reply to
Puckdropper

ing a cutting board. This would be done to help hold it together while glue ing and for added strength and resistance to bowing. I seem to have trouble when I just clamp everything. It gets bowed.

Bad idea. If the stock sides are parallel, the parts could be creeping and sliding. You could try sprinkling a tiny bit of sand between the boards to prevent slipping. Also, as has been said, use cauls to hold the top and bot tom flat.

Reply to
joeljcarver

That's something I learned early. Now, I often glue up just wide enough to fit through the planer, then glue those together. It's a lot fewer seems to scrape.

Reply to
-MIKE-

I would forget about the biscuits or dowels as none will stop bowing. Cauls are the best option and these clamps make best most efficient use of them...

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Reply to
-MIKE-

I am currently building 6 cutting boards with 20 pieces of maple each. I simply glued 5 together and clamped, then I glued 4 sets of those together. I had very slight slip. This was pretty fast for me, I glued up 22 groups of 5 in less than 2 hours.

You could use screws but that is going to take significantly longer and will be a potential hazard if you need to trim after glue up.

Use clamps on top and bottom to guard against bowing.

Reply to
Leon

When gluing multiple pieces, 10+' you have to apply a lot of pressure to insure all joints get squeezed tightly shut. This will make even BESSEY kbody and cabinet master clamps to bow.

Reply to
Leon

Exactly what I am doing now with 6 cutting boards. Except I went 5 at a time..

Reply to
Leon

Reply to
stryped1

Gluing your strips in alternating directions will help stop bowing. Theoretically, cursing at the wood will stop it from bowing--or at the very least, make it think twice.

Reply to
Bill

Not saying that rust would not be bud, but would rust really be a problem?

The screw is there only to assist with glue up. If it rusted what would it matter?

Just food for thought. I often use 23 gauge pins for preventing creep and they have never been an issue.

Reply to
Leon

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