h a l f b a k e r y
The phrase 'crumpled heap' comes to mind.
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laser reflective reusable nails to pinpoint measurements in building
In building measuring tapes are the norm. I suggest that,
with the use of span nails, laser measurement can be used
to check larger more frustrating distances such as
Span nails could include notches for string lines to help
Span nails would be a metal plate with
a spike at one end,
notches at nailing depth and a head to be hammered and
pulled. Each side of the nail would be highly reflective to
the frequencies used in laser measuring devices. And
depending on nail surface engineering, focusing as well.
The nails could be placed at accurate angles which might
allow for polygon measurement as long as the last nail has
a perpendicular setting.
If cheap options on seeing laser lines becomes available,
strings lines might be replaced as well.
||This needs a whole "smart construction material" series, from
boards with embedded position sensors to cement that
reports how hydrogenated it is.
||Would it be possible to imprint a small open corner
retro-reflector into the head of an ordinary nail with
a properly shaped punch? It probably wouldn't last
too long since it will rust and stop being reflective.
Probably the best results would be achieved with
the punch being built into a pneumatic nail gun, but
you'd want it to be selectable so you only put retro-
reflectors on some nail heads. And of course those
would have a fairly limited useful angle as well...
||Of course, too smart would be the saw verbally telling you your 100mm out.