Hello everyone, Matt here, a newbie.
I have 2 scroll saws; a Central Machinery (Harbor Freight) 16" and a used Hawk. So far, I have replaced the blade clamps on the HF saw so I can use flat end (pinless) blades and they seem to work very well. These clamps seem to grip a large portion of the blade end (the clamp is what grips the blade, not the screw). On the older Hawk, both the upper and lower blade clamps work by using the end of the screw to press against the blade end.
When I slowly move the arm of each saw, it looks like the downstroke pushes the blade into the workpiece a small amount while the up stroke moves the blade away from the wood. At first I thought this was a good thing since the blade cuts (mostly) on the downstroke and moving the wood away from the blade on the upstroke might lessen the tendency for the wood to jump. My question is, should the blade move perfectly vertical or is it supposed to move slightly into and then away from the wood being cut. thanks