World's Largest Solderless Clock

This 4-foot wide clock is based on the "B" clock. However, there are 4X as many LEDs. All 192 LEDs are powered by a single driver. Not one LED or wire was soldered; everything was twisted with a pair of pliers. The electronics costs less than the lumber!

Step 1: Making the frame

Step 2: Attach a drilled-up panel

Download drill pattern PDF

Step 3: Push LEDs into the back of the panel

Step 4: test

Powered by a single ordinary LEDkit™ driver!

Other variations

power 3 clocks off one driver

Make a clock with no panel at all!

(note: the one shown above has been soldered)