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3D-printer upgrades and maintenance

Upgrades that fit your exact printer

Pick your printer to see its nozzle standard, temperature limit, firmware and the hardware revisions that change fit, plus the upgrade kits whose makers name that model.

Find your printer modelWhere the facts come from

Find your printer model

Takes you from your printer model to the specs, revisions and upgrade kits its maker and part makers actually state, before you order a part.

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

Start here

Our top pick for the most common fits. Each one says who it suits and links to the research behind it.

All best picks

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Find your extruder system

Pick an extruder system to see what its maker states: filament size, gearing, nozzle standard, temperature rating and the printers it names.

All extruder systems

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

All extruder systems

Start with what you need to do

Tools, shortlists and comparisons

ToolExtruder and hotend finder: filament size, gearing and nozzle standardShows what an extruder or hotend maker actually states about filament size, nozzles and printer fit, so you can rule a part in or out before buying.Open →
ShortlistDirect drive extruder kits with a printer fit listHelps a CR-10 or Ender 3 owner pick a direct drive kit its maker lists for that exact model, and plan the calibration that follows.Open →
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ShortlistWear-resistant nozzles by thread standardHelps you pick a wear-resistant nozzle whose thread standard and printer list match your printer before you run abrasive filament.Open →
ShortlistHotend upgrade kits with a stated printer fitHelps you pick a hotend kit its maker lists for your exact printer, and shows the firmware and temperature limits that stay in place.Open →
ComparisonDirect drive extruder kits compared: fit, gearing and filament sizeHelps an Ender 3, Ender 3 Pro, Ender 3 V2 or CR-10 owner choose between a direct drive kit that keeps MK8-style nozzles and one built around E3D Revo.Open →

Common buying mistakes

  1. Trusting the model name

    One name can cover different hardware. ELEGOO lists its Neptune 4 and 4 Pro nozzle kits for the Type-C versions only, and Creality's Unicorn nozzle kit names the Ender-3 V3, not the V3 SE. Identify your model and revision before ordering.

  2. Expecting a hotter hotend to print hotter

    A hotend's rating is not your printer's limit. Micro Swiss rates its FlowTech for the Ender-3 V3 SE at 300 °C, but the V3 SE's stock firmware still stops the nozzle at 260 °C.

  3. Mixing nozzle standards

    MK8, V6, Volcano and Revo nozzles are not one family. E3D states that Revo nozzles do not fit V6-style heater blocks, so match the nozzle to the hotend, not to the diameter.

  4. Skipping the retune after a swap

    A new hotend, heater or extruder changes the numbers your firmware relies on. Re-run PID tuning and extruder calibration, and never loosen thermal protection to clear an error.

Guides

All guides
GuideIdentify your exact printer model and hardware revision firstHelps you pin down the model, revision and serial details that decide whether a kit fits, before you order it.Read →
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GuideMK8 vs V6 vs Volcano vs Revo nozzles: which your printer takesTells you which nozzle family to order for your printer, using the maker's own statement instead of a thread size or a photo.Read →
GuideAll-metal vs PTFE-lined hotends: when the swap mattersHelps an owner decide whether an all-metal heat break is worth fitting for the temperatures they print at, and what to match so it fits.Read →
GuideNozzle for carbon fiber filament: which material, which sizeHelps you pick a nozzle material and orifice size before you load carbon fiber or other filled filament.Read →
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GuidePID tune a hotend after a heater or hotend swapShows when a new PID tune is needed after a hotend change and how Klipper and Marlin document running and saving it.Read →
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GuideBuying printer parts on Amazon or AliExpress: what to check firstHelps you tell a genuine part from a lookalike and avoid surprises on returns and duties before you pay.Read →

Recently updated

Glossary of 89 termsQuestions and answers

A 3D-printer print head with cooling fans above two freshly printed orange parts on the bed
Photo: Jakub Żerdzicki / Unsplash

How we choose

We start from your exact printer model and revision. Specifications and fit come from the printer and part makers' own pages, and every value is labeled with its source; outside measurements are named and treated as one setup, not a guarantee. We list an upgrade kit only when its maker names your model. A store's name alone does not show that the brand authorized it. Nothing here has been tested by us, and we do not publish firmware-modification or mains-wiring steps.

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