I had to get a new soldering iron. But here it is 36 rows out of 48. (4428 leds installed) Using 12 parallel output on the esp32. 12 rows to go. Learning so much on building in large scale.
wow. so close…
What program and method are you using to control these?
Whoah, huge! 
How are you powering all that?
@Chris_Rees i am using he fastled library with an esp32. then programming couple of functions to display images and using websockets for web interface control. i have created a branch to control more than 8 parallel output (i am kinda speed freak).
@dougal 6 x 40A power supplies. i bought them quite cheap on amazon but I have ordered a meanwell one 240A when everything will be complete