I got one of these Zircon levels years ago for only $14 at Home Depot. Now they sell for over $40. They are advertised as accurate to +/- 2.25 arc minutes. Probably better than a bubble level. Combine it with a laser pointer for distance and you have a very versatile leveling system. Jim
Heidi Johnson <hjjohnson@sasktel.net> wrote: Bob, I've always wondered how a laser level could be more accurate than a water level. I'm not disputing the claim but I've never understood how its possible. I'll explain my quandry.. a laser level is only as level as the little bubble will make it. I've found some that aren't even close to level when they 'say' they are. A
water level [ all things concidered like bubbles and wind] will sit perfectly level once properly set up, we know that water will seek its own level. I'm not convinced that a laser level is better. Am I missing something??
Curious is all :)
Jarrett
----- Original Message ----- From: Bob Perkinson Date: Monday, August 28, 2006 1:57 pm Subject: [FlyRotary] Re: OT: Gardenhose as level
> Finn, > Spend $35 or $40 at Lowe's or Home Depot and get you a Laser > Level. The > time you will save and the accuracy will more than pay for it. > > Bob Perkinson > Hendersonville, TN. > RV9 N658RP Reserved > If nothing changes > Nothing changes > > > > > > > Only vaugely rotary related... > > I'm driving myself nuts trying to build this thing level to within 1/8 > to 1/4" ! > > I'm using a
gardenhose, terminating in clear PVC tubing at each > end, to > get reference points at the four corners. > > The thing is that the level varies 1/2" or more over hours. One > end will > be up, 1/2" over where it was an hour ago and the other end down. Then > it changes, etc. How can a guy get a reliable reading this way? > > Is the friction in the hose too big to reliably use this as a level? > > Do I need to terminate each end in funnels to get bigger ambient > pressure? > Finn > (frustrated) > > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >
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