Repetier said:
Ok, I forgot we have changed that in the last versions. Not sure which. In past we used line/total line. That confused users too much so now we use time vs total time. This is from a simulation, but there is also a jump at the beginning. How big depends on the heating speed you have entered in tools. Here we get a jump as soon as we send wait extruder/bed temperature assuming we start at room temperature. So as soon as the M code gets send the time passed jumps also it might some more minutes the printer is ready with heating. So on a 12min print with bed needing 6m it you get quickly a jump to 50% as this is time depending and 50% of time consuming commands got send. A bit unsharp as we don't know when a command gets really executed. But that is why you see it.
Oh, this makes a lot of sense now. Yes, my heating speed is default, and that's really low. Didn't know that setting existed, thanks!
What do you think, would it make sense to autotune that? So on every heatup, repetier server could measure how long the heating took and what's the temperature difference and thus adjust the values.