Articulating LED desk lamp by Gladius_Illuminatus

Last crawled date: 2 years, 10 months ago

Articulating LED desk lamp
Exactly what it says on the tin. This project neatly shows off some of the cool things you can do with a 3D Printer. Oh, and it also looks cool....
The lamp is turned on and off by a touch sensor in the head and features a powerful 12VDC COB LED panel which makes for a nice and bright desk lamp. The arm is fully articulating and the base and head are rotating. The only screw in the entire design is used to mount the head because this connection needs to be slim yet strong. I would still recommend adjusting the head by holding the arm and not pushing on the head itself. All other parts just clip or snap together.
IMPORTANT PRINTING NOTES:
Have a look at the pictures of how I set up my slicer. In this case, it actually matters. Especially the layer height and the infill is critical. The layer height for the arms and base needs to be 0.25mm. If you change this layer height the joints will require more or less force to actuate so if you go too low the lamp won't be able to support its weight. The only place I purposely did this is the arm for the head so it can be moved more easily. There the teeth are printed at 0.1mm. The other important factor is the infill of the built-in springs in the arms. These need to be printed at 100% infill to be able to exert their full force. Note that I printed and tested this design in PET-G so if you change your material your results may vary. Again there is one exception. The lampshade (see trough LED panel cover) was printed in CPE (this was the only clear filament I had). To see how it all gets wired up please refer to the attached schematic.
EDIT:
Since many people asked me about this: The LED Panel is indeed 30W BUT it gets limited to only 5W by using a 1N004 diode in series with it (the panel voltage should be 11V). This way the heat produced is greatly limited so the lamp doesn’t melt itself. There is a schematic that shows this more clearly in the gallery.
Parts list. Please note these are NOT affiliate links but simply the parts I happened to buy.
COB LED 12V 120x65mm12V DC PowersupplyTTP223 Touch sensorLR784 MOSFET ModuleMINI-360 Buck ConverterCable
M3 x 15mm socket head
https://www.youtube.com/watch?v=ABVu05SMuzc