Power modes

Updated 1 week ago ​by Tomáš Chvalina

All of our printers offer various power mode settings, some of them are mostly used for high performance and others for more silent printing. In this article, we will describe each of them and show you how to switch them.

Power modes for the Original Prusa i3 MK3

Normal vs. Stealth mode

The printer offers two print modes. Normal mode is required for the detection of lost steps (shifted layers) while still being quieter than silent mode on MK2/S. The second is called Stealth mode and utilizes Trinamic StealthChop technology, making the printer almost inaudible with the print cooling fan being the noisiest part of the printer. However, Stealth mode does not provide lost step detection.

These modes can be changed in two ways:

  1. When idle LCD Menu - Settings - [Normal Stealth mode]
  2. During a print LCD Menu - Tune -  [Normal Stealth mode]

Power modes for the Original Prusa i3 MK2/S/.5

Power vs. Silent mode

The printer offers different settings for motor power consumption. Silent uses less current and makes the printer quieter, but less powerful. Hi-power is great for very large (over 200 gram) prints and for freshly assembled kits before you fine tune everything. If you experience lost steps (shifted layers) or if you’re manually adjusting the speed of printing to more than 100%, use Hi-power mode.   

Auto power mode

There is also a brand new Auto Power Mode. It sets stepper motors power which lies between silent and high power mode. In Auto Power Mode stepper currents depend on Z height. Current starts low when Z height is minimal and increases slowly with the object being printed.

These modes can be changed in two ways:

  1. When idle LCD Menu - Settings - [Hi-power mode / Silent modeAuto power mode]
  2. During a print LCD Menu - Tune - [Hi-power mode / Silent mode / Auto power mode]

    Padding under the printer

    Another easy solution to dampening the noise your printer makes is to add some sort of padding underneath the printer. This will dampen any sound resulting from the resonance between the printer and the surface the printer is resting on.

    You can use something you have around the house. Such as a folded towel or foam padding like those that are used for children's play area. 

    Lubricating rods and bearings

    New noises coming from the printer after many hours of use is likely a sign that the rods and bearings could use some attention. We recommend using general purpose machine oil for lubricating the rods and bearings. A couple of things to keep in mind when applying lubrication to the printer:

    1. Best to apply the oil to the rods and have the bearings run back and forth. This will help the oil work its way into all the individual bearings.
    2. Wipe off excess oil, any large amounts leftover will become a magnet for debris.

    Do not hesitate to contact us at info@prusa3d.com if you would have any following questions.

    How did we do?