i am building 1 machine in nanno dlp with rasperri pi 3 board and arduino mega. I used nanodlp on the website and it didn't work properly. The nano dlp control board does not control the 3.5'' inch step and Led and nextion as I want. I'm trying to find someone who will install all the pieces (Raspberry and Arduino boards) and will send me the installation files. This is not a free project, I will answer.