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Editing Step 14 —

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Now that we have a 12v supply at the fan headers, and an open Always-on fan header, we can connect a strip of 12v LEDs to shed some light on the print bed.

Conveniently, the LED strip is just the right size to fit inside the trench of the V slot extrusion at the top of the frame.

The wire can be tucked in along the extrusion as well behind the wheel and down to the electronics enclosure. I used small pieces of electrical tape to keep it in place.

Make sure you note the polarity of the LED strip when you solder the wires and connect them to the right pins of the Always on fan port on the Duet.

In the next few steps we will be replacing the hotend shroud to add a BLTouch and replace the hotend fan and part cooling fan. Additionally we will add another short piece of LED strip to illuminate the nozzle. Both of these strips will be connected to the same always on fan terminal.

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