Pressure Advance is another important addition to the firmware’s set of features. Thanks to faster travel speed and accelerations, it can also minimize stringing. It works by analyzing the printer’s movements and applying a filter to the input signals. Input Shaper is a feature designed to reduce ringing (also known as ghosting) by cancelling resonance vibrations. The 5.0.0-alpha1 firmware comes with three new major additions - Input Shaper, Pressure Advance and Precise Stepping. Then go to Configuration -> Configuration Wizard to add the printer with correct profiles. If you don’t see an automatic pop-up window with updated configuration files when you launch PrusaSlicer, use Configuration -> Check for Configuration Updates menu to download the new profiles. You will need at least PrusaSlicer 2.6.0-beta2 (or newer) and the special MK4 IS profiles to slice your own objects with support for Input Shaper and Pressure Advance. Please note that all parameters included in the firmware and the print profiles are work in progress and subject to change! The print speed, travel speeds and accelerations are all work-in-progress and we’re working on further improvements. There are a few known bugs (see the end of the release notes), should you encounter any other bugs or issues with the printer’s performance, please report them via GitHub or in our forums. Features in this firmware are still being developed and may not perform as expected. Since this is an alpha release, it is meant only for experienced users. This is the first public release of the 5.0.0-alpha1 firmware for the Original Prusa MK4. I happy to announce our firmware with input shaper for MK4! Summary
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