TM reader Ben Marvin turned us on to this, um, unusual, idea found on the web: a hand saw with springs mounted on either end so it recoils back and forth, created by software developer John Zimmerman. As you can see from the pictures above, it’s a work in progress.
It seems to me that you’re producing the energy whether you put it directly into the saw or store it up in springs to release it. The only advantage I can see is that you get a slight burst of stored energy released from the spring. But that sounds to me like a solution to a problem I don’t have. If I need power, I generally reach for a larger saw — or a power tool.
What does make these small saws so handy is the fact that you can control them very accurately and stop when things go wrong — though you’d have a hell of a time making anything but straight cuts. Forget miter boxes, yeah?
So what’s your take? Gem or junk?
Recoil Saw Bounces Through Intended Target [Uubergizmo]