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Thread: Another HUD project

  1. #121
    RBW Member Mike_Eitel is an unknown quantity at this point Mike_Eitel's Avatar
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    MeCCRxWi

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    Re: Another HUD project

    By experience after flooding electronics ;-(

    Rinse in destilated water asap for enough time.

    Than put it in an exclosue and connect to some vacuum pump.
    Water starts boiling at low temperature if you have low pressure.

    I was able to get 100k 10turn trimmer in epoxy housing to work reliable again with ca 10-20mbar, chamber outside heated up with warm water of ca 40 celsius.

    Mike

  2. #122
    SBOD Pilot Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish's Avatar
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    Re: Another HUD project

    Cheers Mike

    In this case no need. The case is cast around the end of the cable and the PCB so a flood means only the battery compartment cops it. A quick rinse in tap water, hang to dry and it's good to go again!

  3. #123
    RBW Member broncobowsher is on a distinguished road broncobowsher is on a distinguished road broncobowsher's Avatar
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    Re: Another HUD project

    My experience with flooded electronics (GoPro) was with a friend who has a masters degree in electrical stuff. His comment of "Oh cool! You can see where it arced across the traces" was enough that we did not go any further in trying to revive it.

  4. #124
    SBOD Pilot Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish is a glorious beacon of light Captain Starfish's Avatar
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    Re: Another HUD project

    A few things have come together over the last several months, culminating in my decision last week to step back from diving on closed circuit for a while.

    Given that I won't use the HUD now, and have no intention of selling a HUD I haven't tested extensively first (if at all, given the whole product liability issue around gear like this), I think that about wraps it up for this project.

    The last prototype was not a raging success. It leaked during a test dive. Not sure whether it was from the cap or through the crack in the casing caused when I pulled it from the mould a little too early and then fixed with CA + baking soda. Still functioned for the dive but the corrosion must have worked its way up along the +ve spring terminal and now it won't power up. There were issues with the power, too. Despite the microprocessor being in stupidly low power mode most of the time, looks like the boost converter wasn't shutting down like the datasheet said it would and so was draining 20mA continuously - which means about two days life out of a AAA battery instead of two years.

    Not a complete writeoff for me personally. In the end I learnt a bunch of stuff about plastics and toolmaking, about switching from Arduino to ARM based embedded work, about water and electronics, about CAD/CAM and broken tooling and overall it's been one hell of a ride.

    Hats off to the Kevins, Bruces, Alexeys, Martins, Arnes and others of the world who saw HUD, computer and other dive electronics projects through to completion and commercialisation. I might get there on another project but, this time, I'm going to tap out.

  5. #125
    RBW Member Mike_Eitel is an unknown quantity at this point Mike_Eitel's Avatar
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    MeCCRxWi

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    Re: Another HUD project

    Congrats nevertheless
    Was very interesting to follow your journey.

    Thumbs up, as you wrote: you learned a lot, have been proud reaching steps, did not give up. And you tried it ... not dreaming and talking: one day I will .... And you can claim the cleverness on your side when you see good reasons to stop early enough.

    Now you can judge what is the value behind the work of others.

    Good luck for your next journey. And save dives.
    Mike

  6. #126
    Supporting Member Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36's Avatar
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    Re: Another HUD project

    Thanks for sharing your project with us. I found it very interesting.

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  7. #127
    Thinker n Tinkerer Sparedone is an unknown quantity at this point Sparedone's Avatar
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    Re: Another HUD project

    Enjoyed every update and learned much through your detailed progress. Thank you. Whatever has you stepping temporarily away from CCR doesn't keep you off the loop too long. I already am looking forward to your next project.

    Your perseverance is commendable.

    Respectfully,
    Cameron

  8. #128
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    Re: Another HUD project

    Quote Originally Posted by Captain Starfish  View Original Post
    A few things have come together over the last several months, culminating in my decision last week to step back from diving on closed circuit for a while.

    Given that I won't use the HUD now, and have no intention of selling a HUD I haven't tested extensively first (if at all, given the whole product liability issue around gear like this), I think that about wraps it up for this project.

    The last prototype was not a raging success. It leaked during a test dive. Not sure whether it was from the cap or through the crack in the casing caused when I pulled it from the mould a little too early and then fixed with CA + baking soda. Still functioned for the dive but the corrosion must have worked its way up along the +ve spring terminal and now it won't power up. There were issues with the power, too. Despite the microprocessor being in stupidly low power mode most of the time, looks like the boost converter wasn't shutting down like the datasheet said it would and so was draining 20mA continuously - which means about two days life out of a AAA battery instead of two years.

    Not a complete writeoff for me personally. In the end I learnt a bunch of stuff about plastics and toolmaking, about switching from Arduino to ARM based embedded work, about water and electronics, about CAD/CAM and broken tooling and overall it's been one hell of a ride.

    Hats off to the Kevins, Bruces, Alexeys, Martins, Arnes and others of the world who saw HUD, computer and other dive electronics projects through to completion and commercialisation. I might get there on another project but, this time, I'm going to tap out.
    Really enjoyed watching your progress, Captain! You took a very unique approach, which I think would be very cool if you ever decide to get back to it.

    It's guys like you that drive any creative manufacturing business forward.

    Good luck on whatever comes next!

    Kevin.

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