Verifying Extruder Stepper Operation - SeeMeCNC Rostock MAX v2 Assembly Manual

You'll want to raise this figure by 0.2. Run the Tower Cal macro after each change to check the
effectiveness of the change.
If from the center position the nozzle goes up from the glass at all three towers, you'll want to
lower the Horizontal Radius by 0.2. Run the Tower Cal macro after each change to check the
effectiveness of the change.
After doing this, you will see any changes where one tower may be higher than the other. If this
is the case, go back and re-adjust the end stop screws.
It can typically take anywhere from 5-10 iterations of the calibration process in order to get the
gap to remain the same at all three pause points compared to the center point. Once the gap is the same
at each tower compared to the center, the machine is calibrated and ready to print.

Verifying Extruder Stepper Operation

Go to the CONTROLS pane in MatterControl and click the "PLA" button that's in the
"Extruder Temperature Override" box. The hot end needs to be heated in order to perform this next
test. The reason for this is that the firmware is designed such that it will not permit extrusion if the hot
end is cold.
Once the hot end has reached the target temp (190C in this case), click the "E+" button to
extrude some filament.
Rostock MAX v2 Assembly Guide
Fig. 19-36: Extrude Filament control.
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