.... and still I broke blades just trying to feed themup thru the
drilled holes and push down on the frame. Any other suggestions..
Tricky, in part because those very deep saw frames are not only a
bit clumsy in general, but also more flexible, which also puts
additonal risk on the blade while sawing.
But try this. Instead of holding the sheet horizontally, instead
brace the saw frame top against the bench pin or bench, much as one
might ordinarily do, putting pressure on it via your breastbone,
leaving hands free. That’s the traditional means of inserting and
tensioning a blade, and still perhaps the most solid and least likely
to slip, even with the deep frame. Insert the top end of the blade
first. Now hold the sheet vertically, and you can thread the blade
through the hole. Gravity will help hold the sheet vertical, so all
you must do is keep it from moving up and down too much. If the holes
are so small as to be a tight fit for the blade, you might have to
use a slightly larger drill hole too. With the sheet positioned right
up agaist the top clamp, if it’s not too small a blade, you should be
able to support at least some of the weight of the sheet on the blade
(there should be no space between the sheet and the clamp when you do
this, or you will break the blade.) This should allow you to insert
the blade in the lower clamp. Tensioning is done just by leaning in
on the saw frame handle. Once that’s done, and still keeping the
frame down tight on the sheet, you should now be able to reposition
the sheet to the horizontal sawing position. I suspect your problem
is trying to insert the blade with the saw frame held in the normal
sawing position. Hard to hold it steady, and tension the blade all
at the same time, and if the frame twists just a little, there goes
Once you’ve got the sheet in the horizontal sawing position and the
saw frame held properly, sawing should be not too different from any
other time, beyond the cumbersome size of both frame and sheet.
Hope that helps.