Hi Folks, Newbie @mechanicalengineer had posted a thread (I think it was in the ME forum) where he asked a vague question about how to run 5 DC motors at the same RPM without using feedback. A number of users tried to post helpful replies, despite the OP's thread start being so vague. Turns out @mechanicalengineer was a spammer, posting a link to his website in other posts after this one. He is now banned as a spammer, which cleans up all of his posts and threads, and adds him to the shared spammer database that the PF subscribes to. I just wanted to let you all know why the thread has disappeared. Thanks for trying to help the newbie -- too bad it was a spam setup.