LED Halo Light Ring - Ender 3 V2 Neo
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Add an even down light source to your print volume. It doesn't use much power, and can be left on for extended periods.
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Add an even down light source to your print volume. One that doesn't use much power, and can be left on for extended periods. It improves timelapse quality, and failure detection. Looks pretty cool too.
I found these that seemed to fit the task.
This LED tape has a cuttable section every 33.5mm. I created the track so that each straight segment was 67mm, meaning the tape could be pinched up on one edge (at a cutting point) to make it go around the corner, placing 2 LEDs per segment. I'm not going to lie, it was a happy accident that this created a halo ring that was the same diameter as the gap between the Z-axis vertical extrusions.
It was designed to fit and be printed on a 220mm build plate, and be super-lightweight. Hence no hardware requirements or complicated clips or locking mechanisms to join the parts together.
You will need to print the following:
- 2x Front & Back sections
- 2x Left & Right sections
- 4x Joint Caps
Once printed, place on a flat surface with the slot facing down and glue the [ shaped edges together with hot glue or a cyanoacrylate glue. The joint caps can be glued on top of the join for added strength, although the sticky back LED strip will also add stability.
Lineup the start cut-point with the cable exit slot near the fixing lug. Peal back the film on the sticky tape as you go and carefully fix the LED strip in to the groove.
You can solder on a new cable to extend it if you want and locate the supplied controller where the IR will not be obscured. Adding a blob of hot glue over the soldered connection adds a bit of cable strain relief.
** I've added a spacer that can be scaled in the slicer to give you an offset for things like Z-screws.
I decided to connect the LED strip to a few MOSFET transistors, and control the lights with the Raspberry Pi GPIO and the OctoRelay plugin for OctoPrint. Now the lights automatically switch on before a print, turn green when it is completed, and switch off after 5-mins.
I've now included the MOSFET case files. The transistors can be mounted with M3*6 Hex Socket Button Head Cap Bolts and connected with Dupont connectors.