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Thread: Brand New Damper Design - "The Micro Damper"

  1. #391
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    I wired mine up last night and found it was a much easier fit if you removed the "wings" off the servo. I soldered everything outside of the enclosure and then was able to fit it all in. I did a test fitting before soldering.

  2. #392
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    Quote Originally Posted by Riku Naskali View Post
    Should i bend the connector's solder tabs outwards to get a little room for it?
    I just completed my micro damper assembly and had to do exactly this to make things fit.

    Quote Originally Posted by TimCorrin View Post
    I wired mine up last night and found it was a much easier fit if you removed the "wings" off the servo
    I removed the tab on the side facing the wire/mounting hole. I left the other intact as it allowed the servo to snap very securely into place. I was surprised at needing to do this as I was under the impression that the servos sold through microdamper.com came pre-trimmed.

    Fan wires:
    Don't cut the fan wires too short. You'll have less to have to coil out of the way but it's not worth the hassle. Do the soldering with the two halves next to each other and deal with the resulting length.

    And my biggest tip:
    Don't solder a TRRS plug onto cat5, crimp an RJ45 plug onto a 4-pole cable.
    After being frustrated soldering the 3.5mm plug onto a piece of cat5, I realized I could more easily solve the problem from the other direction. I bought a coiled 3.5mm TRRS extension cable, cut off the appropriate end, and then crimped an RJ45 plug onto it. Only takes a minute with a multimeter to identify which wire corresponds to which position on the plug -- and then just a few seconds to insert the wires into the RJ45 and crimp. Far easier and quicker than soldering the other end, provided you already own a crimp tool.
    Bonus - the coiled cable is far more compact (partly because it's only 4-wire, partly from being coiled like phone cords used to be) and easier to store.
    Last edited by Brian James; 05-01-2018 at 08:55 PM.

  3. #393
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    I couldn't agree more with the TRRS plug!

  4. #394
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    PSA: Make sure you don't mix up the servo power and position signal wires (red and orange) within the connectors! I fried a pi last night, and not in a good way.

    Also, is the 3mm plug not ment to be taken in/out when the HM is powered up? Because doing so was causing the arduino to reboot... maybe that's what fried the pi?
    Last edited by KennyDado; 11-08-2018 at 07:55 AM.

  5. #395
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    Quote Originally Posted by KennyDado View Post
    PSA: Make sure you don't mix up the servo power and position signal wires (red and orange) within the connectors! I fried a pi last night, and not in a good way.

    Also, is the 3mm plug not ment to be taken in/out when the HM is powered up? Because doing so was causing the arduino to reboot... maybe that's what fried the pi?
    I rather like Fried Pies!

  6. #396
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    I would say there is a possibility depending on the order of the pins soldered to the plug. If you think about how they mate, the contacts pass through all the rings before the plug is fully seated. Is there an official order to solder them? There might be a combination where as you insert it, it connects the 12V to the 5V which is directly connected to the Pi. Or having 12V touch GND would also be bad but I think the power supply would just shutdown for that.
    I'm that HeaterMeter guy what ruins everybody's free time.

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