Magnifying Lamp

thingiverse

I'm upgrading a broken magnifying lamp that was headed for the trash, giving it new life as a functional piece. The original lamp featured a bulky black housing, a 120v incandescent bulb, and a swivel that was both broken, making me decide to create an entirely new housing. The magnifying glass is approximately 100mm in size, held firmly by a retainer ring screwed into place. I'm using 4mm wide LED light strips for illumination, which will be powered through the housing via a switch recessed on the side and connected to a 12v transformer salvaged from junk. The swivel is secured with an M3x25 bolt featuring a nut inserted into the housing, allowing it to be tightened to preference. This combined with a snug fit between the swivel and housing creates a sturdy pivot point for the magnifier. The swivel attachment to the lamp arm will require your own design using the 4mm hole. The retainer ring is secured by ten screws and has an M3-sized hole that can accommodate a screw no longer than 5.5mm in length. I used a Radio Shack part number 275-0409 submini slide switch, which features dimensions shown. For powering the LEDs, I utilized 20 awg wire supplying 12 volts. I believe this is the minimum gauge to use without compromising the strength of the lens holder. However, upon further inspection, I found that the LED strip adhesive does not adhere well to PLA. To resolve this issue, I removed the adhesive backing and secured the strip in place using CA glue. Hot glue would also be an effective solution. Additionally, I've included a model of the lens holder without a recess for a switch, allowing you to incorporate an inline switch or alternative method for turning it on/off. Please feel free to leave comments, questions, or modifications as desired. You can find important information in the notes section below.