LED星型发光时钟(三)
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Step 2Drill Holes for LEDs







First off the hole positions need to marked. The clocks diameter was 9.25" so its circumference was about 29". Since I wanted 8 LEDs, I spaced the holes 3.65" apart. I cut a bendable piece of plastic to use as a ruler.
The Images below cover the following steps.
- Cover the area where the holes will be with some painters or masking tape.
- After testing for how far away from the wall I needed the LEDs, I found a notepad and pen that were the right height for the LEDs.
- Mark a line all the way around.
- Use a ruler to mark the spacing of the holes to be drilled on the line that was already drawn.
- Drill the holes, be careful and precise. I used a hand drill and it worked fine.
