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How to make simple all electric gauges

In some cases like engine instruments, there is no need for more that 250 movement of needle.
I was looking for a way to make those instruments easy and this is how it ended.          

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I found some stereo MHz meters at a local electronic store. As they has a wide movement (250) I thought that they would do as engine instruments

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This is how it looks when dismantled

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After I had trim off the frame this is remaining

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Dials made of paper, printed on laser, colors added by hand when needed

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To get space enough for needle to go clear from glass, I used plasic cans, cut to suitable size and glued to place. I use fast cure CA glue

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This is how it looks when assembled. As the plastic can is semi-transparent, light will shine up the dial and needle when a lamp is added behind the instrumentpanel

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Same instrument from another angle

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Glass made of 1mm Plexi and glued to distance. Used epoxy to prevent damage to glass.

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Final assembly with my gauge faceplate. Instrument is 0 at 0Volts and 100% at 10Volts