Extruder assembly First, you need attach the pinion gear to the DC motor. Slide the pulley all the way down the motor shaft ...
Next, you need the following part: The extruder clamping bracket . You will need two of them to finish building the extruder. But first, we ...
Add the two filament guide parts 
The edges need to be filed down a bit on every possible contact point. File down ...
Next, you need to prepare the pinch wheel 
You will notice that the pinch wheel is not perfectly round, but does have ...
Now, add a 606ZZ bearing to the motor shaft. This one will keep the shaft centered, leading to a longer motor lifetime. 
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Pinch wheel shaft
Insert the M6x45 bolt from the back side. This will be the pinch wheel shaft. 
On the front side, ...
