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Ecotech Reeflink USB Power Conversion

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3D model description

My Ecotech Reeflink was working happily until all of a sudden, it wouldn't power on. No lights at all!

A quick poking around showed that the large black IC on the board inside had failed (responsible for converting mains AC voltage to 5 volts (0.8amp peak).

Seeing as though I bought it second hand and essentially had no warranty anyway etc, I decided to convert it to being USB powered!

Parts Needed:
* Soldering Iron
* Solder
* Snips of some sort are handy to cut off the parts we need to remove/clean up etc.
* This 3D print :)
* Pololu usb07a board
* Some wire (something like 26awg silicone wire is good)
* 2x M2 nuts
* 2x M2 4mm bolts
* [optional] Double sided tape or glue (for re-attaching the rear sticker! The original glue doesn't cope well with being re-attached) - could just remove the sticker too.

Steps:
* Note; some pictures on the internet show a large black heatsink over the input power section - mine didn't have this (perhaps why it failed! haha). Switching to USB removes the need to dissipate heat anyway, so remove it if present.
* De-solder/remove the large black IC (RECOM AC-DC Converter)
* De-solder/remove the figure-8 power connector (we're going to replace it with a USB-C connector)
* [optional] Remove the other mains AC components from the board (not needed, but for those interested in clean appearance :) )
* Print this part (socket face-down, board mount sticking up)
* Shave a small amount off the Pololu USB board, near the screw holes (else it doesn't quite fit! See pictures)
* Solder wires to run from the main board to the Pololu USB board (see pictures)
* Use the M2 fixtures to install the Pololu USB board into the 3D printed part, and slot that into where the figure-8 power connector used to live (See pictures).
* Close the casing all back up, plug in, and make sure you get some lights showing! :)


3D printing settings

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3D printer file information

  • 3D design format: STL Folder details Close
    • reeflink_usbc5.stl

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  • 3D model size: X 22.5 × Y 16 × Z 15.5 mm
  • Publication date: 2021/07/26 at 01:08

License

CC BY

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