The Filament Feeding Mechanism - Printing in Plastic: Build Your Own 3D Printer - page 280

Figure 15-13. Insert the Extruder and tighten the hose clamp.
Tighten the zip tie over the ceramic tape and continue to tighten the hose clamp if possible. You
want to have the nozzle pointing perpendicular to the bottom edge of Part Q (see Figure 15-13) and
tightened down as much as possible using the zip tie and the hose clamp.
Figure 15-14 shows the zip tie tightened as much as possible along with the hose clamp. Cut the zip
tie close to the feed cylinder.