Ray, that's a great solution. I suspect the lawnmower makers might be interested. On the downside, it makes their product a little more expensive, and also stops them from selling new mowers to people who own rock gardens.
On one occasion a wayward horseshoe found my lawnmower. I replaced the blade and the blade mount because the shear pins had done their job. I had trouble finding the right blade, though, because when I replaced the blade with the 22" proudly displayed on the mower deck, I could hear the slight "chirp" of the blade kissing the shield. No matter, I put in a 21" blade and I was on my way. As the years wore on, so did the mower, every so often a blade mount would crack, and at one point I had to replace the handle because it had sheared off from vibration. About 7 years later I was replacing another cracked mount, and as I rotated the blade around I found that the crankshaft was horribly bent.
Now it all made sense, the smaller blade, cracked mounts, and the handle breaking from vibration. I wished I had known about straightening the shaft with a pipe, rather than just taking the mower to the curb.
Digital healthcare devices and wearable electronic products need to be thoroughly tested, lest they live short, ignominious lives, an expert will tell attendees at UBM’s upcoming Designers of Things conference in San Jose, Calif.
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