Mailing List flyrotary@lancaironline.net Message #33422
From: Heidi Johnson <hjjohnson@sasktel.net>
Subject: Re: [FlyRotary] Re: OT: Gardenhose as level
Date: Mon, 28 Aug 2006 14:09:48 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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 <bobperk@bellsouth.net>
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)




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