My husband is also your height (6’5" for those who did not see the
post) and since I am 13" shorter we have had some interesting
placement compromises when dealing with counter tops, door handles,
etc. during our marriage…
In order to maintain good body alignment when you are seated at your
work space, you should have your legs positioned so that your thighs
are parallel with the floor and your shins are perpendicular to your
thighs, and the floor, with feet flat. If your knees are pointed up
you are in too much of a squat and you will have stress on your lower
back, not to mention the bruised knees.
If one’s seat is too high (this is for all the shorter people who
are reading this) there is stress on the hips and sometimes
mid-thigh, causing sciatica symptoms in the hips or numbness, folled
bu muscle fatigue, where the edge of the chair is the fulcrum to the
thigh. I’ve experienced both of these.
So the first thing to address is the proper height of the chair. You
can have someone look at you in the chair from the side to determine
the alignment or you can set up your camera on timer and take a
picture of yourself to see how you are sitting.
It sounds like you then might need to reconfigure the work station
by raising it up several inches, I’m thinking at least 4" from the
sound of it. Then you can raise your bench pin holder/block holder
to hit you about mid-chest. If you have a GRS system, they have a
plate that can raise the whole affair to suit yout needs and this
might be all you need on the bench. I have my bench pin at about
collarbone level but when I engrave, I need to be a tad higher. This
will keep you from bending too much at the shoulders, which can
cause that awful sharp ache between the shoulder blades. Remember
that just raising the block will not help your seating situation.
You can raise the bench up on blocks of 4x4 post or bricks. But make
sure whatever you use is stable and will keep the bench from moving.
You might consider using some L-brackets to anchor it to the wall.
My bench is made from three 12" kitchen cabinet bases and 8 feet of
counter top material we bought at Lowe’s. This gives me two stations,
one for my bench pin and one for wax carving, theoretically. In fact,
the extra space is currently taken up by clutter. Ack! But I just got
a new Graves mark XL5 faceting machine yesterday (Awesome! It does
everything! even chews your food for you) and will put it in that
space. Also getting ready to set up a separate 4 foot soldering
station with natural gas next week, and we will use the same type of
material to build the base. The cabinets can be put up on bases to
make them taller.
Best of luck,