| Subject: | Re: checking castor (i.e. caster) |
| From: | David Beierl |
| Date: | Fri, 5 Nov 2010 19:39:54 -0400 |
At 04:11 PM 11/5/2010 -0400, Larry Alofs wrote: > The body of the device has a digital readout which reads >to a tenth of a degree and two bubble vials which let you orient it >either horizontal or vertical accurately How sensitive is the bubble? Is the tenth-degree a meaningful i.e. repeatable answer? A tenth-degree on a twelve-inch arm is .021 inches, the thickness of five Post-It notes. Yrs, David
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