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Upgrade path finder

Pick your printer model to see its maker-stated specs, hardware revisions, documented upgrade kits and maintenance rules, with every field sourced.

By Watchmarks EditorialPublished Research-based

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Short answer

Pick your printer model below to open its page: the maker's stated specs, the hardware revisions that change fit, the upgrade kits whose makers name that model, and the maker's maintenance rules. Not sure which model or revision you have? Start with identifying your printer model and revision.

Picks this tool points toSee the shortlist

Choose your printer model to see the key facts and what fits. Each fact links to its source on the full page.

All printer models

How the data is built

Each printer page is built from the printer maker's own pages (spec tables, support pages, FAQs and manuals) and from part makers' fit lists, read on 2026-10-08. Outside measurements, such as CNC Kitchen's flow and extruder-force tests, are named and labeled as one setup. Where no source we read states a value, the field says "Not confirmed" instead of guessing. We do not test printers or parts.

Printer modelNozzle standardMax nozzle temperatureFirmwareDocumented upgrade kits
ELEGOO Neptune 4 ProNot confirmed300 °CKlipper, pre-installedELEGOO hardened steel nozzle kit and multi-size brass nozzle kit for the Neptune 4 series (Type-C version only)
ELEGOO Neptune 4 PlusNot confirmedNot confirmedKlipperELEGOO hardened steel nozzle kit and multi-size brass nozzle kit for the Neptune 4 series (both versions of the 4 Plus and 4 Max)
ELEGOO Neptune 3 ProMK8-type nozzlesNot confirmedELEGOO stock firmware, which ELEGOO says handles the M600 filament-change command differently from official MarlinSlice Engineering Neptune 3 upgrade kit (lists the Neptune 3 Pro, Plus and Max)
Creality Ender-3 and Ender-3 ProNot confirmedNot confirmedNot confirmedMicro Swiss NG direct drive M3201 (CR-10, CR-10s, CR-10-S4, CR-10-S5, Ender 3, Ender 3 Pro, Ender 3 V2); Micro Swiss linear-rail NG adaptation plate (needs an MGN12 rail and MGN12H carriage block; rail not included)
Creality Ender-3 V3 SENot confirmed260 °CNot confirmedMicro Swiss FlowTech hotend for the Ender 3 V3 SE (rated 300 °C; stock firmware still caps the nozzle at 260 °C)
Creality Ender-3 V3 KENot confirmed300 °CCreality OS, which Creality describes as based on KlipperNot confirmed
Creality K1CQuick-swap tri-metal nozzle (Creality's FAQ wording)300 °CNot confirmedCreality Unicorn quick-swap nozzle kit; Creality K1 Series Ceramic Heating Block Kit (Quick-swap Nozzle Kit)
Creality K1Not confirmed300 °C (Creality's current K1 page)Not confirmedCreality K1 Series Ceramic Heating Block Kit (Quick-swap Nozzle Kit), listed for the K1, K1 Max and K1C
Creality K1 MaxNot confirmedNot confirmedNot confirmedCreality K1 Series Ceramic Heating Block Kit (Quick-swap Nozzle Kit), listed for the K1, K1 Max and K1C
Original Prusa MK4SPrusa Nozzle (Nextruder); E3D V6 nozzles only with the Nextruder V6 Nozzle Adapter290 °CPrusa firmware, flashed from a USB drive with the package for the specific printer modelPrusa MK4 to MK4S kit (adds a 360° cooling fan with shroud and a brass 0.4 mm CHT nozzle); Prusa MK3/S/+ to MK4S kit
Original Prusa MK3S+E3D V6-type nozzlesNot confirmedNot confirmedPrusa MK3/S/+ to MK4S kit: reuses the frame, PSU, MK52 heatbed and X/Y rods and bearings; adds an xBuddy board, Nextruder, motors and a 0.4 mm CHT nozzle
Original Prusa MINI+E3D V6-type nozzlesNot confirmedPrusa firmware; input shaper added in version 5.1.0Not confirmed
Prusa CORE One+Prusa Nozzle (Nextruder)290 °CSame firmware for the CORE One and CORE One+, flashed from a USB drive with the model's own packageCORE One to CORE One+ upgrade (Nextruder and top panel, side filament sensor, spool holder); the INDX upgrade works on both
Sovol SV08Not confirmedUp to 300 °CNot confirmedNot confirmed
Sovol SV06 ACENot confirmed300 °CKlipper control boardNot confirmed
Bambu Lab A1Not confirmedNot confirmedNot confirmedNot confirmed
Bambu Lab X1 and P1 seriesNot confirmedNot confirmedNot confirmedBIQU Panda Revo hotend (lists the P1P, P1S and X1C)

Why the revision matters

The same model name can cover hardware that takes different parts:

  • ELEGOO Neptune 4 series. ELEGOO lists its hardened steel nozzle kit for the Neptune 4 and 4 Pro in their Type-C versions only, but for both the ribbon-cable and Type-C versions of the 4 Plus and 4 Max.[1] Its brass nozzle kit carries the same rule.[2]
  • Creality K1. Creality's current K1 page lists a hardened steel nozzle,[3] but it does not say whether that describes the original K1 or the later revision with an integrated nozzle, so check the assembly on your own printer. Creality's Unicorn quick-swap kit page tells K1 and K1 Max owners to check whether their printer has an integrated nozzle before choosing.[4]
  • Ender 3 V2 and V2 Neo. Micro Swiss sells a separate NG direct drive kit for the Ender 3 V2 Neo, apart from its kit for the CR-10 and Ender 3 family.[5]

What is not listed, and why

The Bambu Lab A1 mini and the Sovol SV07 are not in the finder. On 2026-10-08, Bambu Lab's A1 mini hotend and spec pages and Sovol's SV07 product page could not be read, so we had no maker source for either. The Bambu Lab A1 page covers the A1 only, not the A1 mini. We will add models once their makers' pages can be checked.

For extruders and hotends rather than whole printers, use the extruder and hotend finder. For the upgrade decisions themselves, see mechanical upgrades.

Choose your printer model to see the key facts and what fits. Each fact links to its source on the full page.

All printer models

Shop what this tool points toSee the shortlist

Questions

My printer is not in the list. What should I do?

Use the maker's own spec page and the part maker's fit list for your exact model, and do not assume a kit for a similar model fits. We add a printer only when its maker's pages could be read and checked.

Why does a field say 'Not confirmed'?

No source we read on 2026-10-08 stated that value for that model. We leave the field open rather than repeat a listing or forum claim as fact.

Why does the revision matter if the model name is the same?

Because kits are listed per revision. ELEGOO lists its Neptune 4 hardened steel nozzle kit for the Neptune 4 and 4 Pro in their Type-C versions only, while it fits both versions of the 4 Plus and 4 Max.[1]

Sources and changes

  1. Hardened Steel Nozzle Kit for Neptune 4 Series – ELEGOO US · Manufacturer · ELEGOO US product page; version compatibility notice for Neptune 4/4 Pro/4 Plus/4 Max. · checked 8 Oct 2026
  2. Elegoo Multi-Size Brass Nozzle Kit for Neptune 4 Plus/4 Max – ELEGOO US · Manufacturer · ELEGOO US product page; brass nozzle kit version compatibility for Neptune 4 series. · checked 8 Oct 2026
  3. K1 Support Center: Firmware,Videos,Specs & Help (Creality) · Manufacturer · K1 core specs and firmware listing; revision not stated. · checked 8 Oct 2026
  4. "Unicorn" Quick-Swap Nozzle Kit for K1C/Ender-3 V3/Ender-3 V3 Plus (Creality) · Manufacturer · Creality Store listing; named models and integrated-nozzle check for K1/K1 Max. · checked 8 Oct 2026
  5. Installation instructions — Microswiss (Micro Swiss) · Manufacturer · Index of NG extruder and FlowTech hotend installation documents by SKU and printer. · checked 8 Oct 2026
  • : First published.

Next editorial review due 7 Jan 2027.