Joint attachment for IKEA SKYDRAG LED lamp

Each IKEA SKYDRAG light fixture comes with two attachments which let it screw into a surface. However, if you want to place two lamps side-by-side, you end up having to screw each lamp individually, wasting space and making alignment more difficult. I recreated the attachment in FreeCAD and simply mirrored the design to allow for a single attachment to attach to two lamps.

I printed mine in PLA with a 0.4mm nozzle at 0.1mm layer height. It attached perfectly and seems to be holding the two lamps together well enough. Used the same screw that came with the lamp, but regular Phillips screws fit as well.

If you plan to use the AUTO feature of the lamps, make sure you attach them so the sensors are facing the same way. I placed my lamps under my cupboard as a kitchen surface light so I attached them in opposite orientations instead to bring the cable ends together and make cable management easier.

Also keep in mind that the declared length of the lamps includes the attachment points, so attaching two lamps this way ends up being approx. 2cm shorter than the sum of the declared lengths. Both of my lamps were declared as 60cm, but the total length of both lamps together ended up at 118cm.