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Before going any further,
I will explain the basic workings of the height adjustment
mechanism. As mentioned in the last slide, the 45-degree bevel cut
to the inside of one of the "outside main leg supports" will
accommodate the pivot joint of a stainless steel strap hinge. This
strap hinge (as seen to the right-center in the above photo) will act
as a locking mechanism that will press against the "adjustable
center leg" by means of a knurled knob. But before I can install the
strap hinge, I will need to install a T-Nut for the threaded knurled
knob. In the
image above, you will note that I drew a line above the bevel with a
short line denoting where I will be drilling a 1/2" hole to receive
a 3/8" T-Nut. But a recess has to be created first.
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