X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from vms040pub.verizon.net ([206.46.252.40] verified) by logan.com (CommuniGate Pro SMTP 5.1c.3) with ESMTP id 1354391 for flyrotary@lancaironline.net; Tue, 29 Aug 2006 10:25:23 -0400 Received: from [71.99.159.51] by vms040.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0J4R00DUCK1PBVN6@vms040.mailsrvcs.net> for flyrotary@lancaironline.net; Tue, 29 Aug 2006 09:25:03 -0500 (CDT) Date: Tue, 29 Aug 2006 10:25:02 -0400 From: Finn Lassen Subject: Re: [FlyRotary] Re: OT: Gardenhose as level In-reply-to: To: Rotary motors in aircraft Message-id: <44F44E3E.9070504@verizon.net> MIME-version: 1.0 Content-type: multipart/alternative; boundary=------------020708090805060707020207 X-Accept-Language: en-us, en References: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) This is a multi-part message in MIME format. --------------020708090805060707020207 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hi Bill, I take it that it's not a $40 item from Lowes, but rather a $500 or more self-levelling precision rotating laser level? Finn WRJJRS@aol.com wrote: > 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 --------------020708090805060707020207 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Bill,

I take it that it's not a $40 item from Lowes, but rather a $500 or more self-levelling precision rotating laser level?

Finn

WRJJRS@aol.com wrote:
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

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