LED Spotlight with Diffuser

thingiverse

I liked the Par64 Spotlight by Domonoky, but I needed something shorter. Note: This was designed with this mount in mind: https://www.thingiverse.com/thing:2881135 Modifications to the original part include the following: - The spotlight body is much shorter. - The spotlight body includes a hole for LED wiring. - The vents are functional rather than decorative. - Uses standard M3 screws (along with printed washers) to attach U-bracket. - All but one part will print without supports (U-bracket needs a tiny amount). Additions to the design include: - An LED Holder, which accommodates seven 5mm LEDs. - A diffuser, which should be printed in "clear" or "natural" PLA. - A retaining ring, which prevents the diffuser from falling out the front. Body Assembly: - Print one of each part except the washers. - Print two washers. - Insert M3 screws of an appropriate length through the holes in the U-bracket. - Place one washer on each M3 screw. - Place spotlight body into U-bracket. Tighten M3 screws (just enough to hold). LED Parts Assembly: - Acquire seven 5mm, 12VDC LEDs prewired with resistors (http://a.co/bEdHRRG) - Insert seven 5mm LEDs into the LED holder. Use a drop of CA glue to hold each in place. - Solder all LED anode leads together, then solder these to a +12V power lead. - Solder all LED cathode leads together, then solder these to a ground power lead. - Feed the power leads into the large opening in the spotlight body, and out through the small hole at the rear. - Insert the LED + Holder bundle into the spotlight body and glue it into place, recessing it about 2mm. - Add the diffuser, if you printed it, and secure it by gluing the retaining ring into place. The photographed spotlight was printed in brass PLA.