I wired up a Neopixel 16 x 16 matrix (FINALLY!!) and decided to do some things different and experiment with a new product for me. The copper tape (https://www.adafruit.com/product/1128) from Adafruit, serves as the bus. I soldered solid core wire for the jumpers to the strips. I am only experiencing a .04 voltage drop at the end of the bus, with a brightness at a conservative 32. More testing results to follow…
Precise pixel alignment, is clearly, not my thing. Just saying…
I’m sort of preferring totally NON-aligned pixels anyway these days, but that’s just me.
Diggin that copper tape… now if i could get rolls of it with kapton on either side, that’d be awesome.
Finally one more matrix arround. Looking forward what you will do with it! 
Has anyone seen an offset matrix? I have a load of WS2812 60/m that I’ve ended up with — 8 metres worth. Seems like too larger distance to make a proper matrix but one with offset rows might look interesting.
I do not get it. What is an offset matrix? ANd a too large distance between what? If you are lazy you can just coil the 8m arround a tube and your 360 degree matrix is done!
edit: This I did with 4m if I remember it right: https://www.youtube.com/watch?v=4qiDcKd8xO0
I am randomly inventing terms
I meant where every odd row is offset by half the pixel spacing.
A possible way to get the illusion of more pixels.
Not sure how you would code for it!
I see 2 ways: A) exactly as a normal matrix or B) you calculate your effects in a virtual matrix with the double width and then interpolate it on your physical matrix. But A) will work fine and save you calculation power.
And who says that the distance between the leds in x and y direction has to be equal?
In my spiral matrix the ratio was like 1:5 and the diffusor hid it well…
i’ve only ever made offset screens, no grids! (i too called it offset - seems most logical!) i avoided any issues with setup by making a mapping system to map lights with a webcam to create a mapping file with the positions of lights - any arbitrary setup is easily turned into one giant low res scattered screen. took forever to get all the parts done right but it works for me and saves so much hassle it was well worth it. I really hate the rigid look of a standard grid, especially when displaying moving images. To see what i mean here’s one i did a while ago with a collection of ‘offset’ screens (super short demo!): https://www.youtube.com/watch?v=q0XFBQoqW_g and also here’s an example of mapping hanging module strings: https://www.youtube.com/watch?v=f2yRaTdzFJQ I’m hoping someone with money will give me some so i can do 3d hanging stuff using standard modules or something else epic 
i’ve not yet moved to 3d mapping but it shouldn’t be too hard to do a pair of mappings to get proper x,y,z for every pixel albeit less automagically than i do just now. my current main project approaches the need but i’m sticking with 2d for it.
That looks really sexy to get rid of the rigid underlaying structure! Good work. And a nice font, too.
I just never heard the term offset matrix before, so I asked. No offence. I am here to learn new things.
Is there any code out there you probably published that allows us to play with the mapping of an unsorted bunch of leds ourselfs?
Pardon my ignorance but how are you grounding the strips?
@Ryan_Clough Shoot, I managed to upload the same side on the photos. Basically, the other end of the board has a strip, just the same as the positive rail, running down the other side. It looks exactly the same as the positive rail.
Last night I’m getting the same voltage drop, ~.05 volts, at moderate brightness of 128. I’m surprised how the strip is performing, as they say it cannot handle substantial amperage. What is substantial? I’m pulling over 2 amps right now, and I think that is substantial…am I wrong? Either way, I know I can pull more from the copper strip if I tin the whole thing.
My matrix with power injection just at the beginning and the end takes 15A at full white/full brightness. For short moments that seems to be ok, at least I see no signs of heatdamage on the thin plastic carrier which appears similar to the material strips are made of. So I think the question is, how long you have high currents running through. 2A I would call moderate.