It has been a while since I posted any new MOCs, so it pleases me to share this with you. Well, after the success of my compact small piston radial pneumatic compressor, I decided to try my had at an engine. (URL) that pistons have two ports, and (...) (20 years ago, 17-May-05, to lugnet.announce.moc, lugnet.technic, lugnet.robotics) !
