Omkar Yantra LED wall light

thingiverse

This wall light comprises two pieces that are glued together with an LED lighting module in between (refer instructions for details). It hangs on a standard picture hanger. The sacred syllable 'OM' is in raised lettering in Devanagari script. In the provided example, I added a filament change at 1.7mm on the top piece to print the 'OM' in gold filament (M600 if firmware supports it - Marlin has this feature experimentally). The LED lighting modules consume minimal power and require a 12V DC power source. You need cyanoacrylate (superglue) or a hot-melt glue gun to join the pieces. Blender sources are included at an early stage (before converting font object to mesh) as well as in the final stage. Credit for 'Omkar' glyph from Sanskrit 2003 font goes to Omkarananda Ashram. To construct, gather a 12V LED module, a 12V power supply supplying 200mA (larger ones are available but waste power), cyanoacrylate adhesive or hot-melt glue gun, and soldering iron, solder, heat shrink tubing, and hair dryer. Print both top and bottom pieces using 0.2mm layer height; insert a filament change at 1.7mm for different colors. Optionally, print three triangle pieces too. Skirts should not be printed if the bed is 6 inches. Scale all pieces to 77% when slicing. Connect LED module wiring to power supply, solder and cover with heat shrink tubing, then heat-shrink. Fit optional triangle pieces over wiring before gluing in step 4. Glue the LED module to the bottom piece using self-adhesive backing or hot-melt glue gun. Attach triangle pieces to bottom piece corners, ensuring space for top piece and fitting of wiring in channel beneath triangle. Apply a single drop of cyanoacrylate adhesive on the six posts and carefully align the top piece, placing it on the posts. Make sure it looks good from above as cyanoacrylate is unforgiving.