3D Printing Info
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Original Prusa MINI+

Compact 180 mm cube Prusa with a Bowden extruder, SuperPINDA probe and 32-bit Buddy electronics, semi-assembled from three parts.

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23 catalog fields6 catalog sources

Model referenceOriginal Prusa MINI+ in black; the source describes MINI+, photographed 2021.
Photograph · Klaus-Dieter Keller · Image source · CC0 1.0 · proportionally resized and converted to WebP. No crop or retouch.
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Hardware, software & ownership

Full specifications inside each chapter

Understand the hardware, explore compatible changes and find a diagnostic starting point when something goes wrong. Expand the specification sections for every recorded value, condition and original reference.

Machine & motion

Dimensions, construction and the hardware that moves the print.

Model, variants & pricing3 fields
Original Prusa MINI+ — Identity & Market
Property and unitPublished value and conditionsSources and dates
Manufacturer & exact marketed model name (verify the exact product identity first)Original Prusa MINI+ Semi-assembled 3D Printer
1 source
Street price (USD; dated snapshot per entry)$508.33 on prusa3d.com, Aug 2026
1 source
Variants & sibling models — and how to tell them apart (spec-contamination risk)Sold semi-assembled and, historically, as a kit; also offered in an Enclosure Bundle. Distinguish from the larger i3-family machines - the MINI+ is Bowden-fed with 2209 drivers, a 280 C nozzle ceiling and a 100 C bed, all lower than the MK3S+/MK4S. Note that Prusa's own MINI+ page carries an "Awards & Press Reviews" paragraph that is entirely about the MK3S, not the MINI+
2 sources
Size, frame & enclosure4 fields
Original Prusa MINI+ — Physical & Frame
Property and unitPublished value and conditionsSources and dates
Build volume X×Y×Z (mm) — advertised vs actually usable180 x 180 x 180 mm (manufacturer figure)
1 source
Machine footprint (mm) & clearance needed (cable/spool overhang)380 x 330 x 380 mm (X x Y x Z), stated without the spool holder and external PSU - the external PSU brick needs additional desk space
1 source
Net weight (kg)4.5 kg without spool holder and external PSU
1 source
Enclosure: open / enclosed; panel material; door/lidOpen frame; sold with an optional Enclosure bundle
1 source
Motion system1 field
Original Prusa MINI+ — Kinematics & Motion Hardware
Property and unitPublished value and conditionsSources and dates
Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?)Trinamic 2209 silent stepper drivers, with sensorless homing on the X and Y axes
1 source

Printing system

Extrusion, heating, leveling and material handling.

Extruder2 fields
Original Prusa MINI+ — Extruder
Property and unitPublished value and conditionsSources and dates
Type (direct drive / bowden) & design nameBowden extruder with 3:1 gearing - the only current Prusa FFF machine that is not direct drive
1 source
Gear ratio & drive gear material3:1 extruder gearing
1 source
Problems & troubleshooting

Clicking extruder or gaps from partial blockage

Check whether filament reaches the nozzle, inspect the Bowden/PTFE path and follow the manufacturer’s partial-versus-full-clog diagnosis before replacing parts.

Applies to: MINI+ stock hotend/PTFE arrangement; Revo-converted machines have a different hotend assembly.

Official troubleshooting Sources & dates
Printable modification

E3D Revo Micro printable mount

E3D’s creator files provide the mounting part needed before disassembling the stock hotend for its Revo Micro conversion.

Applies to: MINI+ Revo Micro conversion, with the matching fan arrangement and wiring hardware; not a standalone stock-hotend upgrade.

Creator listing Sources & dates
Hardware & upgrades

Revo Micro hotend upgrade

The manufacturer documents a MINI+ conversion using a printed mount, replacement heater/thermistor connections and renewed first-layer calibration.

Applies to: MINI+ E3D kit; follow the fan-voltage regulator and cable-clearance requirements. E3D states this conversion needs no replacement firmware.

Manufacturer documentation Sources & dates
Hotend & nozzle1 field
Original Prusa MINI+ — Hotend & Nozzle
Property and unitPublished value and conditionsSources and dates
Max nozzle temp claimed AND firmware max temp limit (both values)280 C claimed max nozzle temperature - lower than the 290-300 C of the i3-family machines
1 source
Build plate & heating2 fields
Original Prusa MINI+ — Heated Bed & Surface
Property and unitPublished value and conditionsSources and dates
Max bed temp claimed AND firmware limit100 C max heatbed temperature
1 source
Bed surface (material, texture, coating), single/double-sidedRemovable magnetic steel sheets in several surface finishes; heatbed with cold-corner compensation
1 source
Leveling & Z-offset1 field
Original Prusa MINI+ — Leveling & Z-Offset
Property and unitPublished value and conditionsSources and dates
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)SuperPINDA inductive probe with no temperature drift, driving automatic mesh bed levelling
1 source
Supported materials1 field
Original Prusa MINI+ — Materials Support
Property and unitPublished value and conditionsSources and dates
Officially supported filament listPLA, PETG, ASA, ABS, PC, CPE, PVA/BVOH, PVB, HIPS, PP, Flex, nGen, Nylon, Woodfill and other filled materials (Prusa's own list; the 100 C bed and open frame are the practical limit for ABS/ASA)
1 source

Software & workflow

Firmware, controls, connections and calibration.

Electronics & power1 field
Original Prusa MINI+ — Electronics & Power
Property and unitPublished value and conditionsSources and dates
Mainboard model & MCU (exact chip markings if teardowns exist)Custom 32-bit board of Prusa's Buddy family; the MINI/MINI+ is covered by the same Prusa-Firmware-Buddy source tree as the MK4, XL and CORE One. The exact board revision is not given on the product page
2 sources
Firmware & software

Upstream Klipper configuration for MINI+

Klipper publishes the MINI+ Buddy-board pin/configuration file. This conversion uses an external host and browser interface; the stock LCD remains on its bootloader screen.

Applies to: MINI+ STM32F407 Buddy hardware; first flashing requires breaking the board appendix and using its revision-specific DFU procedure.

Maintainer documentation Sources & dates
Firmware & openness1 field
Original Prusa MINI+ — Firmware & Openness
Property and unitPublished value and conditionsSources and dates
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Open-source Prusa Buddy firmware. The source tree (prusa3d/Prusa-Firmware-Buddy on GitHub) explicitly covers the Original Prusa MINI/MINI+, MK4, XL and CORE One and was last pushed to in August 2026. Updates are applied from a USB drive, through Prusa Connect or through the Prusa mobile app
2 sources
Connectivity, display & camera3 fields
Original Prusa MINI+ — Connectivity, UI & Camera
Property and unitPublished value and conditionsSources and dates
Display: size, type, touch?2.8-inch 65k-colour graphic screen with G-code preview
1 source
On-device UI capabilities (model preview, per-object controls, etc.)On-device colour UI with G-code preview; remote print management through Prusa Connect
1 source
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveUSB port, RJ-45 Ethernet, optional ESP Wi-Fi module (sold separately); compatible with Prusa Connect
1 source
Calibration & everyday use1 field
Original Prusa MINI+ — Calibration Routines & QoL
Property and unitPublished value and conditionsSources and dates
Assembly level & time from unbox to first printSemi-assembled: Prusa ships it in a small number of pre-built sections; also historically sold as a full kit
1 source

Safety, support & testing

Published safeguards, support terms and independent evidence.

Safety1 field
Original Prusa MINI+ — Safety
Property and unitPublished value and conditionsSources and dates
Thermal runaway protection (verify in firmware source if at all possible)Three thermistors and fan RPM sensors are fitted, and the firmware is open-source and auditable (Prusa-Firmware-Buddy); Prusa does not describe the thermal-runaway implementation on the product page
2 sources
Support & ecosystem1 field
Original Prusa MINI+ — Reliability, Support & Ecosystem
Property and unitPublished value and conditionsSources and dates
Warranty length & support reputation (evidence, not vibes)2-year warranty for consumers in the EU, Liechtenstein, Switzerland, Norway and Iceland; 1 year for EU enterprises and 1 year for the rest of the world, which includes the United States. A printer bought from a reseller or privately carries 1 year from the original delivery date and is handled by the reseller. Prusa advertises 24/7 chat and e-mail support in seven languages
2 sources
Read with context

Sources & notes

How to read this guide

This guide presents the catalog’s sourced record for this exact model. Source dates belong to each reference; a page update does not mean every specification has been rechecked.

Prices are dated listing snapshots, with configuration, regional and sale conditions. They are not current offers. Unknown values remain unfilled.

Firmware, variants and available accessories can change. Read the original reference before making a purchase or planning a process.

Catalog references6 sources
Ownership research & coverage

Firmware, modifications and troubleshooting links are checked against the model and stated hardware or firmware revision. A creator’s compatibility claim is not a fit test by this site. Official troubleshooting describes a diagnostic route; individual reports do not establish a failure rate.

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