For new user, we do not suggest adjusting the parameter during printing.
For advanced user, you can push the knob to select “Control” to adjust Nozzle or Bed temperature and printing speed during printing.
4. How to evaluate if the filament enough or not to print the object?
After convert STL file to GCO file in Repetier-Host software, customer can see the needed filament usage (Length) of printing the object at the end of the g-code command or “Show in Log”. Customer can evaluate the actual filament length is enough to meet the needed filament length.