Star Shaped LED Jewelry

Hi All,

Few months back I came across an instructable https://www.instructables.com/id/LED-Jewelry/ by jiripraus

I wanted to try the making one, for my wife and she wanted a Star shaped LED jewelry. I did a google and could not find any template for it. So I decided to make one myself

In this instructable I will share how to design and make your own led jewelry

Step 1: What Do We Need ?

• Brass wire 21 Gauge ( approx 0.9mm)
• LED Strips ( white ) or smd LEDs
• CR-2032 battery
• Soldering iron
• Paper tape
• one A4 Sheet
• Pencil, compass, and a measuring scale
• Cutter
• Pliers Small
• Multi-meter

Step 2: SMD LED

• I extracted my LEDs from an old LED strip
• These were white SMD LED
• Approx 3 mm X 2 mm X 1.5 mm ( L x W X H )
• Had a T sign on it which indicated the cathode for the LED
• Carefully de-solder these leds from the strip
• I needed 6, but i extracted 9 of these, just to be sure that I had enough to work with
• Test the LEDs to make sure they are still working, replacing LEDs later is bit difficult

Step 3: Design Principles

• The jewelry has to be as compact as possible, we need to use the smallest battery avaliable
• We are not building a torch, do not use extremely bright LEDs
• Joints should not have sharp edges
• It should look simple and elegant
• Measure the battery, LEDs and wire
• My Battery was 20 mm in diameter
• The star is made with a circle with 40 mm diameter, one could chose to make it more bigger depends on one's preferences

Step 4: Star Outline

• Trace the outline with brass wire
• To get better star shape we have to cut the brass wire as shown and then soldered the joints
• Stick the wire in place using paper tape
• Remember to file the joints, so that there are no sharp edges

Step 5: Add LEDs

• The Star outline will be connected to positive end of the battery
• So solder anodes of all 6 LEDS to the star as shown
• Add joints to connect all cathodes of 6 LEDs as shown

Step 6: Add Hook

• Since this is a going to be a pendant, We need a hook
• Twist and cut a small hook of brass wire
• Solder it flat to the star

Step 7: Battery Support

• On the back , we will add two battery supports to hold the CR 2032 battery in place
• one of the support is as the diameter and another at the bottom

Step 8: Finishing

• Inspect the LED jewelry for week joints and add soldering where needed
• Remember to file the joints, so that there are no sharp edges
• Insert the battery and test all LEDs
• Hook it in a chain and we are done

I hope this instructable will inspire you to design your own shape and make one

thanks for reading