Before We Begin:

The Vulcan HotEnd is the easiest to assemble HotEnd available on the market today. Please follow the instructions provided, and observe all safety precautions:

  • Ensure your printer is turned off and power disconnected prior working on your printer.
  • Use caution when heating up your HotEnd to avoid burns.
  • Make sure you are using a 6mm x 20mm, 12V or 24V heater element in the correct voltage for your printer power supply.
  • Use only cartridge style Thermistor with a diameter up to 4mm.
  • The maximum working temperature for your Vulcan HotEnd is up to 260°C. Exceeding this temperature may result in melting the PTFE tube. 
  • Your hot end and your printer are your responsibility. We are not liable for damages caused by the use, misuse or abuse of our products



Step 1 - Heater Block:

  • Insert a (4mm diameter max.) cartridge style thermistor into the Vulcan Heater block until it is flush with the front of the heater block.
  • Secure the thermistor with the 2 - M3 set screws provided and tighten using a 1.5mm hex wrench.
  • Insert a 6mm x 20mm heater element into the Vulcan Heater block until it is seated in the bottom of the hole.
  • Secure the heater element with the 2 - M3 set screws provided and tighten using a 1.5mm hex wrench.
  • Loosely thread the 1 - M4 into the heater block using a 2mm hex wrench.





Step 2 - Heat Sink:

  • Using a 10mm box wrench tighten the provided Boden tube push fitting into the top of the heat sink.
  • Loosely thread the 1 - M4 into the heat sink.
  • The heat sink requires a fan. If you are currently using an E3D hot end with 20mm fan you should be able to just use your existing fan and mount. You can also print the following 40mm fan mount: https://www.thingiverse.com/thing:3773163





Step 3 - Heat Break:

  • Using a bench vise (non marking jaws preferred) firmly secure the heat break with the threaded end point up.
  • Cut 14mm of the provided PTFE tube taking care to make square cuts.
  • Insert the 14mm PTFE tube into the threaded end of the heat break.
  • Install 2 of the provided washers onto the provided 0.4mm nozzle.
  • Thread the nozzle into the heat break tightly.
  • Using a heat gun lightly heat the nozzle, and then re-tighten to seat the nozzle in to the heat break.

Vulcan Heat Break




Step 4 - Final Assembly

  • Slide the heater block onto the heat break. With the nozzle pointing downward the 4 set screws used for holding the thermistor and heater element should be pointed upwards.
  • Insert the heat break into the heat sink until it is seated and the last groove on the heat break is no longer showing.
  • Tighten the M4 set screw in the heat sink to secure the heat break.
  • Slide the heater block until it is seated on the nozzle washers and tighten the M4 set screw to secure the heater block onto the heat break. The heater block set screw, and heat break set screw should be roughly aligned for accessibility.

Assembled Vulcan