When Prusa launched its 3D printer MK4 on the market in June 2023, the Czech manufacturer promised a speed upgrade to come. Firmware version 5.0.0 with input shaper for the MK4 has now been released. In addition, Prusa has surprisingly also released an alpha version of the firmware for the MINI/+, which also provides the smallest printer in the family with input shaping, pressure advance and a network connection (assuming an additional WiFi module). This means you can print a speed bench in 26 minutes, or even 16 if you break the rules, as seen in the embedded video. A firmware upgrade for the Prusa-XL is scheduled to follow as an alpha version this October.
Since many 3D printer manufacturers are currently advertising their products with ever faster speeds, Josef Průša is also taking the opportunity to shed more technical light on this topic as part of the firmware announcement. He clearly explains the connections between speed and acceleration, addresses the challenges of fast printing and gives tips on how to better compare fast printers with each other.
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