This video provides a comprehensive review of the new Prusa Core 1L, a larger-format 3D printer that doubles the print volume of its predecessor. The review highlights significant quality-of-life improvements, such as an automatically actuated top vent, a more user-friendly design for maintenance, and an onboard accelerometer for easier calibration. The machine's print quality is generally good, with Prusa having successfully mitigated the "Vertical Fine Artifacts" (VFA) that were more prominent on the earlier model, though some minor surface inconsistencies can still appear at certain speeds.
However, the reviewer points out persistent frustrations, including a nozzle cleaning process that can still fail and the lack of automatic filament calibration, which requires manual tuning without built-in tools in PrusaSlicer. The video also praises the robust Prusa ecosystem, including the Prusa Connect cloud platform and the promise of the open-source "Open Print Tag" RFID system. The final verdict positions the Core 1L as a solid, well-supported, and repairable machine for users who prioritize the open-source philosophy and Western manufacturing over the lower price and slightly more polished features of its direct competitors.
Review of the Prusa Core 1L: A Bigger, Better Machine with Lingering Quirks
0:00:03 Introduction to the Core 1L: The new Prusa Core 1L is introduced as a larger version of the original Core 1, featuring double the print volume at 300x300x320mm.
0:01:02 Pricing and Assembly: The printer is only sold fully assembled for $1699-$1799, primarily because it now uses a mains-powered AC heated bed.
0:01:40 Upgraded User Experience: Setup is streamlined and takes about 10 minutes. The machine now includes a much-requested touchscreen and a chamber camera that integrates with the Prusa Connect cloud service.
0:02:34 Onboard Calibration: The print head now includes an accelerometer, allowing users to perform input shaper and resonance calibration themselves without needing to purchase an accessory.
0:05:20 Key Specifications: The printer features a milled aluminum heated bed that reaches 120°C and acts as an active chamber heater, bringing the enclosure to 60°C. The hotend tops out at 290°C.
0:07:31 Improved Print Quality: Prusa has significantly reduced the Vertical Fine Artifacts (VFA) seen on the previous model. Prints, especially with silk PLA, now have a much cleaner surface finish. However, minor inconsistencies can still appear on smooth curves, an issue that can be improved by manually slowing down the external perimeter speed.
Nozzle Cleaning: The nozzle cleaning routine can still fail, pausing prints unexpectedly. The reviewer notes this could be solved with a simple nozzle wiper, a standard feature on competing machines.
Filament Calibration: The printer lacks automatic filament calibration. Users must manually tune pressure advance settings, and PrusaSlicer does not include the necessary tools to generate test patterns.
0:13:19 Major Quality-of-Life Fixes: Prusa has addressed key complaints from the original Core 1. The top vent is now automatically and mechanically actuated, the top panel is easily removable for maintenance, and the filament path is better designed to reduce friction.
0:16:17 Advanced Air Filtration: An optional, but recommended, HEPA and activated charcoal filter system is available. It effectively removes fumes and odors while creating negative pressure inside the chamber to prevent leaks.
0:17:28 Robust Software Ecosystem: The Prusa Connect cloud platform and mobile app are praised as being on par with the competition, offering excellent remote management. The online "Easy Print" slicer also allows for simple, browser-based printing.
0:20:26 Who Should Buy the Core 1L?: The machine is more expensive than competitors like the Bambu Lab X1C. Its value lies in Prusa's commitment to open-source principles, easy repairability, excellent customer support, and manufacturing in the EU and USA. It's recommended for those who value the ecosystem and long-term support over achieving the lowest possible price.