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Step 5Making the cube, connecting the layers
Now that we have those 4 layers, all we have to do is to solder them together.
Put one layer back in the template. This will be the top layer, so choose the prettiest one :)
Put another layer on top, and align one of the corners exactly 25mm (or whatever distance you used in your grid) above the first layer. This is the distance between the cathode wires.
Hold the corner in place with a helping hand and solder the corner anode of the first layer to the corner anode of the second layer. Do this for all the corners.
Check if the layers are perfectly aligned in all dimensions. If not bend a little to adjust. Or re-solder of it's the height distance that's off. When they are perfectly aligned, solder the remaining 12 anodes together.
Repeat 3 times.
Put one layer back in the template. This will be the top layer, so choose the prettiest one :)
Put another layer on top, and align one of the corners exactly 25mm (or whatever distance you used in your grid) above the first layer. This is the distance between the cathode wires.
Hold the corner in place with a helping hand and solder the corner anode of the first layer to the corner anode of the second layer. Do this for all the corners.
Check if the layers are perfectly aligned in all dimensions. If not bend a little to adjust. Or re-solder of it's the height distance that's off. When they are perfectly aligned, solder the remaining 12 anodes together.
Repeat 3 times.
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May 8, 2011. 7:21 AMtemagaiva
says:
My LED cube behaves exactly as
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Feb 13, 2011. 10:14 PM
ptorelli
says:
ptorelli
says:
A clamp-on heatsink will help keep the LED from melting when soldering (clamp it on the 5mm of space between the weld and the bulb). RadioShack sells them, looks like a pair of industrial eyebrow tweezers.
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8
Jan 8, 2011. 2:06 PMhobbyman
says:
hobbyman
says:
painting the leads to black might improve the quality of the produced graphics in the cube I guess.
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Jul 3, 2009. 5:02 PMeloschgimpel
says:
My complete LED cube is showing some pretty erratic behavior, or rather two LEDs are. 62 of my LEDs are working as expected when testing with a 12V wall wart and a suitable resistor. I supply power to one common cathode layer and one common anode column and the LED at the intersection lights up. (First image) In two instances however, instead of the expected diode at the intersection, several other LEDs light up. (Second image) What am I not seeing here? All LEDs' cathodes and anodes are properly aligned, no LED is installed the wrong way. If one or more LED is damaged, how do you recommend I pinpoint it/them? Thanks again for this awesome project.
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