So excited, just ordered some wooden block pulleys from Shicheng model, Cheng the owner said these pulleys are made by newly designed machine, fully automatic manufacturing, I have no idea what it looks like, maybe like robots on the Tesla assembly line, lol, 2mm to 5mm pulleys are available, and can order special pulleys, show some picture here, and I will post a new thread about those pulleys when they are delivered to me.