Hello,
I have an LCD display on top of my Prusa i3. It's certainly nice to have various settings/status displayed on LCD, and also nice to have a slot for SD card (although I don't used it at all).
I was pretty much able to figure out what all these numbers and symbols mean, except for one; the symbol looks like "FR", and it shows "100%" value. There's a knob in this LCD unit, and if I turn this knob, this number goes up or down.
Does anyone know what this is FR thing is for?
Thank you.
