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having just made a new instrument panel I can attest to it being far easier to drill a circle than to cut a rectangle. but many builders seem to have the money now to get their panels water cut. I did end up with 1", 2", 2 1/4", and 3 1/8" holes when done since I mixed aviation and automotive steam gauges. ISS builds van's gauges and are located in portland also. they must be able to supply you with a casing. mechanical oil gauges only cost about $10. I bought a differential air pressure gauge once when I built a mechanical AOA device. I liked how the glass face was convex, so didn't ever have a reflection in it.
http://www.instrumentsales.com/services/distribution.htm kevin
----- Original Message ----- From: "Ernest Christley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, February 25, 2007 4:59 PM
Subject: [FlyRotary] Re: Last Screen Display Photos
Ed Anderson wrote:
You have a good point. Dave.
I wanted to occupy the smallest amount of instrument space consistent with a readable display. Until the new OLED type display became available, I just was not happy about the quality. The old one was readable under most lighten and viewing conditions but not all. This one is much, much better.
At the moment, I had planned to package it for the 2 1/4" dia standard instrument hole. The trouble is I have found no source of reasonably priced instrument cases. I did find a few metal ones with minor flaws and even those were $25 apiece on sale.
I know somebody much make them - plastic would undoubtedly be cheaper. But, the instrument can be mounted in a black plastic box as far as that goes.
I scratch my head a bit more over this issue.
Seems like you could produce some convincing 'instruments' with a length of PVC pipe and plate.
--
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