A BIG upgrade! - Prusa MK4

A big upgrade unfolds with the Prusa MK4, showcasing a number of notable improvements over prior iterations. The video opens with an unboxing sequence that includes the printer, replacement build plates, and a filament box, setting the stage for a detailed hardware discussion. Tynan explains major mechanical upgrades such as a new single-gear extruder with a planetary set and a redesigned hot end that tolerates higher temps, enabling usage with engineering-grade plastics. The MK4’s onboard capabilities are highlighted, including a built-in wireless interface, a quick swap nozzle system, and a bed-probing load cell for automatic bed leveling, all aimed at reducing manual tinkering and increasing reliability. The host then walks through firmware and software integrations, with PrusaSlicer performing out of the box, accommodating multiple filament types, profiles, and nozzle sizes, while maintaining expectations about future firmware enhancements and feature rollouts. A hands-on print test follows, where a Snorlax model is printed to evaluate first-layer quality, adhesion, and overall print stability, confirming flat layers and consistent geometry. After the print completes, the video disassembles key components to show the planetary gear extruder, new idlers, and the large engaged gear, underscoring how these parts contribute to improved control and precision. Finally, the host weighs the MK4 against competing printers in the market, noting price-to-value considerations, assembly options, and the long-term upgrade path for existing Prusa users, concluding that the MK4 represents a strong upgrade even for users with prior Prusa models. The sponsorship segment with Super Micro is integrated mid-video, followed by practical buying notes and a closing assessment of where the Prusa MK4 stands in the current 3D printing landscape.

Topics · 3d printing · hardware review · unboxing · technology · manufacturing · open-source · slicer · print quality