This overview outlines the most common settings and process for printing parts using the MK3S+ Prusa 3D printer. The tutorial will go overthe following items:
Please note that this is a generalized process. This section outlines the standard process however it is important to recognise that there may be many reasons to change some of the settings depending on the design.
You can also review the step by step tutorial in the sections below.
The first setep for printing is to export the Mesh File. This is done by Right Clicking on the top level component in the BROWSER then selecting Save as Mesh.
Next, set the values in the dialog box the same way as seen in the image below and click OK.
The "Save As" window will open. Name the part as desired and check the Save to my computer check box and note the location for the download. Then click Save.
Now open the Prusa sliser software on the computer. When it opens, it should look like the image on the right. If this is your first time using prusa slicer, you may need to select a printer.
If you do not have that printer choice, select Add/Remove printers -> Add/Remove Presets
Scroll down to the MK3 Family then select the 0.4 mm nozel check box under the i3 MK3S & MK3S+ printer. Then click Finish. and SET the Printer like the image on the left.
Print settings:
0.15mm Quality
Filament:
Prusament PLA
Printer:
Origional Prusa i3 MK3S and MK3S+
Supports:
None
Infill:
15%
Go to the Menu and select File.
Select Import
Then Select:
Import STL/3MF/STEP/OBJ/AMF
or you can use the keyboard and simply type:
Ctrl+I
Go to the location where you saved your Mesh file exported from Fusion 360. It is probably in the default Downloads folder
Select Your File.
Then Click Open.
Use the Place on Face tool to select the desired bottom side and place it automatically flat on the build plate. Note that you should always use this tool to avoid creating a print file that is floating above the plate or is sitting at an angle on the plate. Then click Slice now in the bottom right corner.
Lastly, Export the G-Code to a local drive or you can export it directly to the SD card for the printer.
You can also check how long the print will take as well as how much filament it will use.
It is also a good idea to put your name in the file name so it is visable on the printer while printing.
The MK3S+ is a workhorse of a printer, but the key to sucessful prints is making sure that the printer is set up correctly and that you monitor the first layer of the print. The following section will review the process for printing on the MK3S+ Prusa Printer.
+95% of the time, we use PLA. This needs to match your settings from Prusa Slicer.
Now that the Bed and Nosel are at temp. Press the Control Knob.
Turn the Control Knob to select Print from SD. Then press the knob.
Select the desired file using the Control Knob.
If the printer recommends new Firmware, just press the knob again.
Ideally, if the Z height is good, the filament will lay down like the following illustration:
Removing prints from the build plate is much easier because of the ability to remove and bend the build plate. Different thermal expansion of the steel sheet and plastics used in 3D printing also helps with detaching prints after the plate has cooled down.
Flex the build Plate to lift the edges of the Print: