I am almost finish my cutting board project, Consisting of 200 wooden
block (2 inch by 4 inch, and 2 in thick). I have glued them together,
but wanted to rest and glue this on a large piece of wood for more
support. I was thinking plywood, but a friend said to use presswood,
because it wont work like plywood.
What wood would I best use?
Is this an end-grain cutting board? It sounds like it. You'll probably
want to glue those pieces in rows at a time. I'd make some sort of
gluing jig that allows you support two sides and clamp two sides.
After they come out of the gluing jig, I'd square the rows with a
jointer and table saw. Then you should be able to glue the board
together. I'm not sure why you couldn't use plywood for a gluing base.
Lay wax paper on top of it.
The board is almost finish gluing. I did use strips , passed in the
planar to make sure it is straight.
ok here is my design, the plywood is not for building the board but
will be pernanently glued.
where the T are blockes with 2 inches in depth and the 't' are blocks
with a 1.5 inch in depth. The plywood is there to solidify even more.
Once it is glued, the board is flipped over and the plywood (or
presswood), is no where to be seen.
just want to know whch one to use, plywood will work in time? making
cracks on the board?
Is that view from the top or the side? It looks like the edges are ten
inches thick and the interior is 7.5 inches thick with plywood filling
the difference. Did I get that right? If that's the case, the plywood
serves as a spline. That is an acceptable use of plywood. I'm not sure
why presswood would be superior. Maybe your friend knows something we
remove 4 'T's at the end or the first and fifth line so as to make it
a rectangle. But i see it ok in the reply windows, not sure why it is
not the same way in view mode. It is a top view of the board where the
plywood fits on the small 't' making the board 2 inch thick
He said that plywood can twist in time and press wood wont. Is this
You need to use a fixed width font for your reply window when doing
drawings like this. My newsreader shows you're off by more than 4 T's.
Most people use Courier as their fixed width font.
If you're using a font such as Times New Roman, the spaces between the
characters will be compressed, which, while easier to read isn't good for
Oh, btw, my rule of thumb is to use plywood for anything that stands a
chance of getting really wet. Good luck getting most other composite
boards flat again.
Marching to the beat of a different drum is great... unless you're in
Personally, I'd use plywood but I'll defer to the group. I like to
think I understand your design and I'm hard pressed to think you'll
have a problem with it twisting. I'd like to know *why* he thinks it
Am I missing something obvious? I don't understand why you would put
anything on the bottom of a 1.5 or 2 inch thick end grain cutting
board. If properly glued wouldn't this have all the strength needed?
Also, no matter what is attached on the bottom won't the board itself
want to expand and contract across the grain and either split if the
backer is glued on or at least come unglued? I would think you would
just want a 2" endgrain slab.
My friend said that plywood will not work because it will bend and
twist with time, thus causing crack on the board I will take a picture
of the unfinish board tonight. I agree with press wood will not be
good if it has water on it, then again, I dont need to use the board
as a raft, It will be setting on 6 or eight legs on the counter, so
away from water... I think, unless I am forgetting something
How big is this thing anyway?
You said you used 200 blocks each 2x4x2 inches and that it is 2 inches
thick. That means the surface area is 1600 square inches (2*4*200).
That's better than 11 square feet!!! Are you making a chopping board
or a counter top?
Whether or not it needs some sort of sub-base for support really
depends on how big it is. For a normally sized chopping block - even
a big one - 6-8 feet would be more than adequate support. Of course,
if the surface area is really 11+ square feet and you are chopping up
sides of beef with an axe then the feet aren't going to "cut" it.
Well I willnot be cutting sides of beef on it. More like regular day
chopping. I really like doing this project . I posted two pictures:
It sis the underneath of the table where I will put in the plywood. I
still have to add the top and bottom end but I will wait until the
board is in. You can see the two side, these are 2 inches in depth,
the other blocks are 1.5 inch, so with a 0.5 thick board It will be 2
I thought of using screws aND glue to install on the board. Also when
I finished glueing last night, I found out that the board was warp,
(this shape: ^ ) which was not half the through the glueing. I wet
the board on both sides and put some weight on both ends Also added
some 1mm chimms on the end, This morning it was much better. because
of the chimms it warped a bit the other way, so I just layed it down
flat, water it again et put on some weights again , I hope it will be
perfect tonight and I can put on the plywood.
If I"m seeing that picture right, you
have a number of blocks that are 4" long
by 2" wide that are both edge-glued and
end-glued that looks (loosely) like the
diagram below. Is that correct?
Is there anything other than glue
holding the endgrain joints together,
like dowels or biscuits?
If it's just glue, I can't see that
supporting its own weight. Even with
dowels, I don't know how strong it would
Maybe I'm not reading that pic right.
| | | |
| | | |
|__ |__|_ |
| | | |
| | | |
|_ |___|_ |
| | | |
| | | |
| | | |
| | | |
yes you are correct, there is only glue holding them together now, You
can see from the first picture that the left and right column are
thicker blocks. It is as suck to hide the plywood once the table is
flipped over. It will act as a counter top and cutting board. Now the
table is a bit warped, I wetted it down again and added some weights.
Alright, I am pretty sure I see what it
But end grain can't be glued to end
grain with any assurance that it will
hold for any period of time.
You've got them in neat columns and
rows, and no staggering of the pieces.
If the pieces had been staggered, then
you would have had long grain to long
grain all along the sides, and it would
have helped the end grain gluing.
But I see this thing failing at each of
the end grain joints.
However, I read back from your original
posts in November, and someone said that
end to end gluing is possible. Maybe,
but my take from the pictures is that if
you put each end of this thing on raised
blocks, say 12", and stand on it...it's
going to break along those endgrain
It looks like you *really* wet it down. My best advice is...
STOP DOING THAT
As thick as that is - and as wet as it appears you have made it - it
is going to take weeks if not months to dry out and reach some
semplance of stability.
To get it dry again, put a layer of brown wrapping paper on something
flat; put your project on the paper; put another layer of paper on
top; put a sheet of plywood on the very top and add wrights. Concrete
blocks would work. Tomorrow, unpack all, throw away the papers from
top and bottom; turn the project over and repeat with new paper. Do
that every day; flipping it each day, until such time as it is truly
dry - as I said, that will be weeks.
Once it is dry (next summer?) afix it to plywood by bedding it in a
layer of mastic such as liquid nails, silicone caulk, et al.
Additionally, screw through the plywood into it. Use LOTS of screws
and drive them at a steep angle so they penetrate at least an inch
into the blocks. If the blocks have any tendency to warp, the plywood
will NOT keep them from doing so. Hell, ply warps and twists all by
itself without help from anything. That means you would be best off
firmly affixing the finished project - blocks + ply - to the existing
countertop or removing the existing one and replacing it with your
butcher block top. The latter option is the more logical IMO.
I really dont know how to straighten this, plus it has 4 major crack
from the glue that got undone.
Why did it bend so much ? was i applying to much force when I was
glueing the pieces together?
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