Social CNC and Trade is a networking site for the Machine Tool and Manufacturing Industry. FORUM – PROFILE PAGE- MACHINE DATA – BUY – SELL – PROMOTE – ALL FREE! Social CNC Machine and Manufacturing Network Social CNC and Trade is a networking site for the CNC Machine Tool and Manufacturing Industry. Here you can connect to other machinists, share your CNC knowledge and research machining concepts. We also offer trading for free to buy and sell used machines. read more