Ultimaker 2 ticking sound coming from feeder Recently, the ticking sounds started to come from feeder of my UM2. Inspecting it I have noticed that once in a while stepper motor jumps back for few steps. I have an idea of what can be the reason, but I just want to hear what you can think of. That is the video of feeder during the printing :) < First tick at 10sec

So, problem was too low printing temperature. It was 200c. For PLA I have it was too low. Now I'm confused, for PLA the temperature range for printing is given from 180-210 (It is even written on particular coil). Does it mean that even printing in this range I should adjust temperature for each of plastics I have?

Update: I have researched a bit about phenomena I had. According to RepRap wiki < the flow of material dependent on many parameters, starting with softening point of plastic and ending with environmental conditions. I can conclude that in my conditions temperature of 200c did't give enough material flow (but feeder still tried to push it as much as it required). And ticking was one of indicators of it.