{
  "slug": "prusa-mk4s",
  "brand": "Prusa",
  "model": "MK4S",
  "maxNozzleTempC": 290,
  "maxBedTempC": 120,
  "enclosure": "optional",
  "hardenedNozzle": false,
  "directDrive": true,
  "amsMmu": "MMU3 (optional)",
  "sourceUrl": "https://www.prusa3d.com/product/original-prusa-mk4s-3d-printer-5/",
  "sources": [
    {
      "label": "Original Prusa MK4S",
      "url": "https://www.prusa3d.com/product/original-prusa-mk4s-3d-printer-5/"
    }
  ],
  "verifiedDate": "2026-10-14",
  "notes": [
    "Prusa lists a 290 °C maximum nozzle temperature, a 120 °C maximum heatbed temperature, a Nextruder direct drive, and a brass CHT nozzle.",
    "The comparison table on that page marks the enclosed chamber as not included, with an optional enclosure. MMU3 is optional."
  ],
  "answer": "The Prusa MK4S lists a maximum nozzle temperature of 290 °C and lists a maximum bed temperature of 120 °C, according to https://www.prusa3d.com/product/original-prusa-mk4s-3d-printer-5/. Checked 2026-10-14."
}