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! :)

Prusa

I3 MK3S

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0.2

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