I use marlin firmware, and occasionally I will use the m220 command to speed things up a bit. As I was reading the skeinforge documentation about bridging, something occurred to me. I think that by using m220, I am changing my feed rate but not my flow rate; essentially I'm thinning out the plastic. I think that if my intent is just to hurry things along, then I should be using m220 in tandem with m221. I tried looking through the marlin source code, and although I didn't find a definitive answer, it did reinforce my thinking.
Am I right here?
