The Prometheus V2 is an all-metal hot end that is fully customizable and works with any 3D printer. Machined from a single piece of stainless steel, the 1-piece nozzle allows for easy assembly and eliminates all internal “melt-zone” junctions. The hot end can print at extremely high temperatures and maintain excellent consistency.


  • 1-Piece stainless steel nozzle
  • Professional internal polishing
  • Optimized heat dissipation
  • High-temperature extrusion up to 300C

The Prometheus V2 features a durable, actively cooled, compact, all-metal construction. Professional internal polishing along the full length of the nozzle reduces friction in the hot end and eliminates jamming when printing PLA. Optimized heat dissipation allows for a quieter cooling fan and minimizes vibrations. V2 Nozzles are made of stainless steel so they do not wear like conventional brass nozzles. No need to replace your nozzle when printing abrasive filaments.


  • Variable length "melt-zone"
  • Compatible with all filaments (1.75mm, 3mm)
  • Bowden Configuration
  • Orifice sizes (0.3mm, 0.4mm, 0.6mm, and 1mm)

V2 nozzles are available in various sizes and the nozzle length scales with orifice size so that the larger nozzles can be assembled with a longer "melt-zone" to allow for higher feed rates. All heat sinks are Bowden compatible and switching between Bowden and Direct configuration takes just a few seconds. Variable length "melt-zone" allows for the hot end to be customized according to your needs. From high precision to high speed printing, Prometheus V2 does it all.


  • Simplified assembly
  • Fits all FDM 3D printers
  • No external parts required
  • No soldering needed

The 1-piece nozzle (which replaces the standard nozzle and heat break combination in most all metal hot ends) eliminates the need for the hot end to be assembled at high temperatures to create a leak proof seal in the "melt-zone". This cuts down on assembly time and eliminates the possibility of leaks from improper assembly procedure. Standard J-Head groovemount dimensions means that Prometheus V2 should fit most extruders and is a drop-in replacement for your old hot end.

“Based on all the hot ends that I have reviewed this is the one I would put on
my personal printer in terms of overall performance, flexibility, ability to do
different things, and price point.”

-Michael Zenner of Zennmaster 3D printing

Variable Length "Melt-Zone"

The customizable design of the Prometheus V2 allows you to configure the length of the "melt-zone" to your specific needs. If you are looking for high precision 3D printing you can shorten the "melt-zone" length to acheive maximum quality. Have a need for speed? No problem! You can simply assemble the Prometheus V2 with a longer "melt-zone" for high speed printing.

Internal Polishing

Professional internal polishing along the full length of the nozzle reduces friction in the hot end and eliminates jamming when printing PLA. The V2 nozzles are processed with a new polishing method which is a combination of mechanical and chemical polishing and results in a flawless internal mirror finish.


Customers love their Prometheus Hot End! Check out this Prometheus V2 review by Thomas Sanladerer.


Available to order now. For further information check out the User Guide.