when i tried to use 8/0 blades for a tiny piercing job they would
break while i installed. can anyone give me a tip?
The Knew Concepts saw frame is strong enough to pull smaller saw
blades tight enough to pull them apart. It can also tighten the
blades very gently. You over-tightened them, that’s all. I’ve done
that plenty of times myself, still do if I’m not paying attention.
If you have the toggle top frame, set the toggle to tight. Rotate
the tensioning knob so it is loose. Install the blade, lock at both
ends, then gently rotate the tensioning knob to take up the slack. If
you gently pluck the blade you do not want to hear a dull twang, but
for 6/0, 8/0, and especially 10/0 blades you do not want to hear a
really high pitch, either. Once the blade is just taut, that is
enough. Make fine adjustments if the sawing doesn’t feel right. Once
you have the right tension for a blade, you can switch the toggle to
the loose position (forward), release one end of the blade, insert
that in the pierced piece, tighten the blade end, and swing the
toggle back to the tight position. As long as you do not nudge the
tensioning knob you can then use the toggle to return to the right
tension for repeated cuts.
If you have the original frame without toggle, just tighten the
blade gradually until is is just taut, and you are good to go.
Buy the finer blades by the multiple-dozens or gross, because minor
saw handling mistakes will break them.