DIY RepRap 3D Printer for Beginners – Part 1: Build

• Intro & Step 1: Build Top Plates
• Step 2: Build Linear Sleds
• Step 3: Build Extruder Sled
• Step 4: Build Extruder
• Step 5: Build Z-axis
• Step 6: Finishing Touches

Step 4: Build Extruder

1) The extruder should come with a thermistor (Figure 15) which measures temperature, a heating element (Figure 16), and an extruder head (Figure 17). The thermistor and heating element both go into holes on the extruder head as shown in Figure 17.

Figure 15: Thermistor that comes with Extruder

Figure 16: Heater that comes with Extruder

Figure 17: Hot end with holes labeled

2) Use electrical tape to bundle all the wires together and move them away from the printer mechanisms. Screw the extruder head into the main body of the extruder using the hole labeled in Figure 18.

Figure 18: Extruder with hole labeled for hot end

3) Press rubber tube for filament into the extruder body.

Figure 19: Fully Assembled Extruder with sled