Speed adjustments - PrusaSlicer

RE: Speed adjustments

jgorniak — Tue, 15 Jul 2025 15:50:39 +0000

Thank you both for the replies. I've since found that I can make the change in the gcode with the M220 SXX command. I'll probably start there, and then incorporate the MVS tweaks as needed further down the road.

RE: Speed adjustments

Sembazuru — Mon, 14 Jul 2025 23:03:13 +0000

For slowing down, yes you can lower the MVS (if changing MVS in the printer profile doesn't do anything, make sure that the filament profile override isn't set to something). I would caution about raising the MVS unless you are tuning MVS for a specific filament. Go too high and you risk running into extruder skipping once you start exceeding what physics will allow for your filament type, nozzle size/type, and nozzle temperature.

RE: Speed adjustments

_KaszpiR_ — Sat, 12 Jul 2025 07:42:50 +0000

Changing speed in the printer menu changes only specific moves, so sometimes it does nothing due to the complexity of the printed model.

The most important settings in PrusaSlicer are:

- max volumetric speed https://help.prusa3d.com/article/max-volumetric-speed_127176

- layer height (as far as I remember 60% of the nozzle diameter)

Bumping MVS usually needs changes per filament type and usually may need bumping nozzle temperature. Layer height gives the biggest visible speed up for the price of the worse look ( layers are more visible), so it may be good idea only for certain prints.

Speed adjustments

jgorniak — Thu, 10 Jul 2025 16:46:35 +0000

I'm guessing that this has probably been addressed a number of times, but I can't seem to find a definitive answer (if there is one). I know that I can change the print speed at the printer under the tune setting. Let's say that I want to print at 75% speed. One setting, change the speed, and done. What would be the equivalent change to make in Prusa Slicer to accomplish the same thing? I'm guessing that there are a few parameters that would have to be addressed to accomplish the same thing. I guess, in other words: what exactly is changed when I adjust the speed setting at the printer, and what are the corresponding changes that I can make in Prusa Slicer beforehand?