LED光立方制作全过程（十五）
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Step 27Build the cube: mount the cube
Mount the cube. That sounds very easy, but it's not. You have to align 64 LED legs to slide through 64 holes at the same time. It's like threading a needle, times 64.
We found it easiest to start with one end, then gradually popping the legs into place. Use a pen or something to poke at the LED legs that miss their holes.
Once all 64 LED legs are poking through the base, carefully turn it on it's side. Then bend all 64 legs 90 degrees. This is enough to hold the cube firmly mounted to the base. No need for glue or anything else.
Step 28Build the cube: cathode risers
You now have a LED cube with 64 anode connections on the underside of the base. But you need to connect the ground layers too.
Remember those 8 small holes you drilled in a previous step? We are going to use them now.
Make some straight wire using the method explained in a previous step.
We start with ground for layer 0. Take a short piece of straight wire, Make a bend approximately 10mm from the end. Poke it through the hole for ground layer 0. Leave 10mm poking through the underside of the base. Position it so that the bend you made rests on the back wire of ground layer 0. Now solder it in place.
Layer 1 through 7 are a little trickier. We used a helping hand to hold the wire in place while soldering.
Take a straight piece of wire and bend it 90 degrees 10mm from the end. Then cut it to length so that 10mm of wire will poke out through the underside of the base.
Poke the wire through the hole and let the wire rest on the back wire of the layer you are connecting. Clamp the helping hand onto the wire, then solder it in place.
Rinse and repeat 7 more times.
Carefully turn the cube on it's side and bend the 8 ground wires 90 degrees.
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