ORIGINAL PRUSA MINI SPECIFICATIONS ORIGINAL PRUSA i3 MK3S
| Build volume | 18 x 18 x 18 cm | 7 x 7 x 7 in | 25 x 21 x 20 cm | 9.84 x 8.3 x 8 |
| Layer height | 0.05 – 0.35 mm | 0.05 – 0.35 mm |
| Max travel speed | 200+ mm/s | 200+ mm/s |
| Max hotend/heatbed temp. | 280 °C / 100 °C (536 °F / 212 °F) | 300 °C / 120 °C (572 °F / 248 °F) |
| Mainboard | Custom 32-bit Buddy electronics with STM32 and latest Trinamic 2209 silent stepper drivers | Einsy RAMBo 8-bit board with Trinamic 2130 drivers co-developed with Ultimachine |
| MMU2S support | No | Yes |
| Extruder | Bowden system with 3:1 gearing | Direct drive |
| LCD screen | 2.8″ graphic 65k color screen | Monochromatic LCD |
| Print surface | magnetic heatbed with removable PEI spring steel sheets | magnetic heatbed with removable PEI spring steel sheets |
| Filament diameter | 1.75mm | 1.75mm |
| Nozzle diameter | 0.4mm (default) / other nozzle diameters supported | 0.4mm (default) / other nozzle diameters supported |
| Supported materials | PLA, PETG, ASA, ABS, Flex | Any thermoplastic including Nylon and Polycarbonate |
| Filament sensor | Optional upgrade | Yes (IR) |
| Power panic | Future software upgrade, single layer accuracy | Hardware-based, single G-code line accuracy |
| Ethernet connection | Yes | Via Raspberry Pi |
| Wi-Fi connection | Optional upgrade | Via Raspberry Pi |
| Advanced sensors | 3 thermistors, fan RPM sensors | 4 thermistors, fan RPM sensors |
| Farm mode | Yes (upcoming feature) | No |
| Calibration | Automatic, Mesh Bed Leveling | Automatic, Mesh Bed Leveling |
| Print medium | USB drive / LAN | SD card |
| Firmware update interface | USB drive / LAN | USB port |
| Power supply | 160W, external adapter by Mean Well or Delta depending on the region | 240W, custom made by Delta with Power Panic HW |
