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> Custom Quad Gauge, Showing off my results
Evan0
post Aug 5 2017, 09:57 AM
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I recently finished assembling my own custom quad gauge to replace the combo fuel gauge and though I would share the results. The gauge has coolant temperature, oil pressure, fuel level, and voltage gauges. The indicators for parking brake, generator, low oil, and low fuel are present as well. Watch the demo video at the link below to see it in action.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-20837-1501948651.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-20837-1501948652.2.jpg)

Quad Gauge Demo Video

I have a full write up on my blog for those are interested in the details. https://evanli.com/quad-gauge-for-a-porsche-914/
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914-300Hemi
post Aug 5 2017, 10:07 AM
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Very impressive. (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/smilie_pokal.gif)
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timothy_nd28
post Aug 5 2017, 10:18 AM
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Very very impressive!
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Porschef
post Aug 5 2017, 10:29 AM
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Sweet.
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worn
post Aug 5 2017, 11:05 AM
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I am very impressed. Also, I think you may have solved a problem with my own search for the triple gauge. My problem has been generating the gauge face, which is on a stamped piece of aluminum. I have tried vinyl through the laser printer and silk screening. The vinyl is best, but the edges want to lift from the compound curves. Silk screening wasn't accurate for me - but my experience has been with art and T-shirts, so tiny precision I haven't gotten.

Laser etching!

Also, very cool. In the end, since you used 40-50 year old technology for the gauges themselves, what drove you to the micro controller route? I think it is because you can!

Ah, jealousy creeping in. Oh, well done! (IMG:style_emoticons/default/first.gif)
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mepstein
post Aug 5 2017, 11:08 AM
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I struggle with basic wiring so this kind of creativity blows me away.
Having every thing labeled on the back might give me a fighting chance.
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tygaboy
post Aug 5 2017, 11:22 AM
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Dude! "Tidy" is the word that come to mind. Very nice, you should be very proud of that. (IMG:style_emoticons/default/pray.gif)
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mlindner
post Aug 5 2017, 11:24 AM
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EvenO.....will you make these available for purchase. Mark
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Evan0
post Aug 5 2017, 11:26 AM
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QUOTE(worn @ Aug 5 2017, 10:05 AM) *

I am very impressed. Also, I think you may have solved a problem with my own search for the triple gauge. My problem has been generating the gauge face, which is on a stamped piece of aluminum. I have tried vinyl through the laser printer and silk screening. The vinyl is best, but the edges want to lift from the compound curves. Silk screening wasn't accurate for me - but my experience has been with art and T-shirts, so tiny precision I haven't gotten.

Laser etching!

Also, very cool. In the end, since you used 40-50 year old technology for the gauges themselves, what drove you to the micro controller route? I think it is because you can!

Ah, jealousy creeping in. Oh, well done! (IMG:style_emoticons/default/first.gif)


Funny enough, half way through this project, i concluded that a second version using modern gauge steppers may be a cheaper and easier route than using the VDO gauges. I'm working on a version 2.0, but this gauge suits my immediate needs, so progress will be slow on 2.0. Also since the stepper gauges are much more compact, this give a lot more space for other stuff, like a 1.38 round LCD screen. Here's a peak on what 2.0 will have.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-20837-1501953962.1.jpg)

As for the microcontroller, it was the only realistic way to control the LEDs in a compact fashion.
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napasteve
post Aug 5 2017, 12:00 PM
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Evan, your work is amazing. If you should decide to make these for you fellow teeners, I would be interested in one for a stock 2.0.
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Montreal914
post Aug 5 2017, 12:01 PM
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Really nice stuff!

(IMG:style_emoticons/default/first.gif)
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amfab
post Aug 5 2017, 12:15 PM
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Best looking quad gauge ever!
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914forme
post Aug 5 2017, 12:59 PM
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I actual had just thought of a similar setup last night for my triple gauge as was going to look into what it took to make up a new version.

I really like what you did here, modern manufacturing and technology makes this so much easier to do from when I was a lad. Yes using s stick to propel a hoop down the street.

Way to go great work, you should be very proud.

And if you have an extra I would purchase it in a heart beat, as I have all the other parts all ready to do the build. The 924 gauge will also work, you just need to get rid of the Madonna Bra Cup gauge glass.
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Cairo94507
post Aug 5 2017, 02:26 PM
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Wow! That just takes it all to the next level. Amazing work. Awesome. (IMG:style_emoticons/default/smilie_pokal.gif)
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914Sixer
post Aug 5 2017, 04:22 PM
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Well Done !!!! (IMG:style_emoticons/default/piratenanner.gif)
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gereed75
post Aug 5 2017, 05:31 PM
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Cairo, click on the demo link.

That is seriously cool. High tech yet retains the retro style. Not sure what you have in mind for version 2.0, but I think this version nails it for those wanting comprehensive, reliable instrumentation without losing the vintage style. This combo gauge with a matching Tach and speedo would be the tits and I suspect you could sale a 100 or so sets right off the get go.
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lonewolfe
post Aug 5 2017, 06:20 PM
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Awesome work! I want one too!
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Cairo94507
post Aug 5 2017, 10:31 PM
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Thanks gereed75. Really really well done.
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bbrock
post Aug 5 2017, 11:06 PM
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Do I spy OSH Park purple on those circuit boards? If so, does that mean the boards could be available for purchase?

Very nice work! (IMG:style_emoticons/default/smilie_pokal.gif)
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Valy
post Aug 5 2017, 11:17 PM
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