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.
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.
On Tue, 16 Dec 2014 07:44:38 -0800 (PST), firstname.lastname@example.org wrote:
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
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
Just food for thought. I often use 23 gauge pins for preventing creep
and they have never been an issue.
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
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.
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.
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
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
"Playing is not something I do at night, it's my function in life"
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.
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