Re: Waves in the build?

Ah, got it!
It's the extruder heater.

I tried printing a single small cylinder, and was watching it.
Heater LED goes on - the diameter increases, heater LED goes off - it starts decreasing.
With 20 seconds per layer the effect and correlation are obvious.

So, same thing as what MrDoctorDIV suspected, only with different heater being guilty.
And the mendel didn't have the same problem because it's hotend (Parcan) is not as powerful as the one here (J-head mk6, i think).

Ok, looks like i'll have to enable PIDTEMP and make it work...
That should do it, right?