After 5 hours of soldering work, it’s finally done, my 9x9 matrix. Just testing to make sure it’s all soldered together correctly.
Nicely arranged there. Sweet.
Impressive construction!
Nice work. I’m doing similar with t5’s.
Looks like you have a good layout.
Nice! Did you use tinned copper wire or something else?
That’s bonkers.
@Jonathan_Beri Thank you!! Yeah, tinned copper wire. Pulled apart with pliers to straighten it with ease. 
Hi @Kyle_Halvorson ,
Very impressed with the soldering here, I thought of doing this but seeing the actual size of these 5050 packages, I gave up !
That solid wire looks heavy. What size wire is it 20 AWG ?
Are you able to drive all these pixels on full brightness white color for some time ??
If you intend to try it, I suggest that you stand ready to quickly power off the whole array as soon as you see a pixel getting colored (or actually losing a color!!)
Thank you! I left the program that was running in the video running on full brightness for about a half hour and the highest temperature I measured was 101.3, really not that bad.
Yeah I wouldn’t worry about the neo pixel getting too hot. The biggest concern typically is in a string where devices at the end might starve for power due to current draw and resistance. I IBT think you have a problem with that.
Other then that, the biggest issue is with 81 pixels you’re drawing some good power. Somewhere near 5W is my estimate.
Hi @Kyle_Halvorson ,
Yes but you do not have all pixels white 100% on steady in that simulation.
I would appreciate if you could try it for a few minutes !
Can you tell me the wire gage you used ?
@Kyle_Halvorson , I just randomly ran across this post. Thought you might enjoy seeing this.
https://plus.google.com/108414175871566419950/posts/LaXVzz19Tha
I think your “no board” version is cooler though. 