In a message dated 8/28/2006 9:33:07 PM Pacific Standard Time,
hjjohnson@sasktel.net writes:
Good to know guy's. The main reason I asked was my father and I used a
laser level [ his new gaget of the week at the time] to check the level of the
wings on our plane. We got it all set up and then just for a double check used
a water level. The water level showed a 3/8" 'out of level' or 3/16" from tip
to tip. Needless to say.. I wasn't impressed. I think in the future I'm
just going to borrow the Transit from work.
Jarrett
The fact is most things are only as accurate as the care taken in setup.
Some of the laser setups are better than others. I had a tripod and a 75' long
shop to setup and test the laser level. I moved the setup and the system I have
repeated within 1/32" at about 70' using a plumb bob to a spot on the floor for
height, but tilting the laser base visibly in two directions. Pretty good
repeatability. (hell I was probably the cause of any measurable difference)! The
seller claims 1/8" or better at 100' and it seems an honest claim. As with
any tool, operator error can skew accuracy. And all of the normal
disclaimers, YMMV etc...
Bill Jepson