With all the pieces laid out I could start rough cutting
them out. I generally cut everything
slightly oversize. For plywood it’s to
get the material down to a manageable size and for the solid Oak it’s to see if
the material is stable. Sometimes both plywood
and solid material have internal stresses that the cutting releases causing all
sorts of problems; bowing, cupping, twisting and the ever popular crook. Cutting oversize gives me some room to
maneuver to try and correct.
However,
before cutting I changed the blade in the table saw from the combination blade
I use for general work to a blade specifically designed for cutting solid wood
with the grain or ripping.
Combination Blade (Left) & Rip Blade (Right) |
Oak Board with Bad Edge Ripped End |
To get a straight edge on the opposite side I need to run
the board through the table saw but due to the defect my fence was not long
enough to guide the board and give me a good clean straight edge. The solution is to clamp a longer guide to
the fence. In this case my 4’
level. The extra length allows me to
safely rip a clean straight edge.
Setup for Ripping Second Straight Edge |
Most of the solid oak rough cutting was easy enough to do, ripping to width on the table saw and cutting to length on the chop saw.
There was one group of pieces as there usually is in a project that required a little extra thought to cut.
To cover up the raw edge of some of the oak plywood pieces and all the melamine shelving
material I plan on using strips ¼” thick by about ¾” wide. Cutting narrow strips like these can cause
all sorts of problems in that I really don’t want to get my fingers that close
to the blade and even if I use a push stick to keep them away there is a fair
chance of the thin cut piece getting bound of between the blade and the fence. When that happens at the very least you end
up with the blade chewing on the cut piece making a bad cut and ruining the
strip. Things can get particularly
exciting if the blade catches the cut piece and sends it flying out the saw
right back at you. I prefer to set the
cut up so the thin strip is on the outside of the blade removing any chance of
a catch. The downside is that you have
to reset the fence for each cut. To make
this easy and repeatable I use a fairly simple jig. Here it is setup to make a cut slightly over
¼”. Later, I will clean up the faces and
get to the exact ¼” thickness with the thickness sander.
To use, I set the fence so the edge of the board is just
touching the jig. The jig is then pulled
out of the way and the piece cut. Reset
the fence so the board is just touching the jig, cut and repeat to get as many
pieces as needed.
Board in Place for Thin Strip Ripping |
Checking the cut pieces with a dial caliper shows just
what I was after, a strip about 1/64” over size. The result is a stack of
pieces all within a few thousands of an inch to the same thickness.
Here is the stack of solid oak needed for the
project. I will space them out so air
can circulate around and see if any of them decide to move on me.
Roughed out Oak Pieces |
With the solid oak rough cutting done I can move on to
the plywood. While my table saw has the
capacity to cut 4’x8’ pieces of plywood I generally break them down with a
circular saw outfitted with a fine tooth blade.
Moving a 4’x8’ sheet of plywood ¾” thick is awkward and besides a full
sheet of oak plywood weighs just under 60 pounds. It is just easier for me to cut them down
this way, my eyes don’t bug out so much moving full sheets and trying not to
bump into anything. In this case it was
particularly easy as I had help from one of the photo club members to move
stuff around. This is one of the sheets
set up with my cutting guide and the saw ready to go.
Setup for Breaking Down 4'x8' Oak Plywood Sheets |
Here is the stack of most of the oak plywood pieces roughed out
waiting to be cut to final size.
Next Up – Sides, Top, Bottom & Fixed Shelves
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