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Upgrades · Hotend compatibility

3D Printer Nozzles: Start Here

A nozzle looks like a simple part, but fit depends on the exact hotend: thread, length, seating, and whether your printer uses a separate nozzle or a combined hotend assembly. A listing that says "for" a printer family is not proof of fit. Start from your printer's exact model, revision, and any modifications.

Research-basedUpdated Exact settings always defer to your filament and printer makers.
Illustration of two rows of 3D printer nozzles, brass and steel, laid out beside a vernier caliper

Where to go next

What matters most

Identify the hotend first

Find the exact printer model and revision and whether the hotend is stock. Some printers use proprietary or quick-swap assemblies where the nozzle is not sold separately. Use the manufacturer's spare-parts documentation as the reference.

Diameter changes the print

Smaller nozzles add detail and time; larger ones print faster and stronger but coarser. Changing diameter usually means changing your slicer profile too.

Material for abrasive filaments

Brass is common and conducts heat well but wears quickly with abrasive filaments. Hardened or other wear-resistant nozzles last longer with filled materials but may print differently. Follow what the filament and printer makers specify.

Installation is model-specific

Procedures differ between hotends, including whether and how to tighten when hot. Use the printer maker's instructions, not a generic video.

Check before you buy

  • Exact printer model and hardware revision?
  • Stock or modified hotend? If modified, which exact hotend?
  • Thread, length, and seating dimensions from the hotend maker's documentation?
  • Nozzle material suited to the filaments you plan to use?
  • Does the printer need a profile or firmware setting for a different diameter or nozzle type?

Nozzles by printer

Printers with at least one nozzles option whose maker names that exact model.

Sources

  1. Stringing and oozing, Prusa Research
  2. Flexible steel sheets (guidepost), Prusa Research