PrusaSlicer

Install

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  • Press Next until the Select Components screen. Select Original Prusa i3 MK3 / MK3S from the dropdown menu. Deselect all Test objects

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  • Continue through the installer and press Install

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  • Install Prusa drivers that popup

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Configuration

  • Open PrusaSlicer. The configuration wizard should pop up when you first open PrusaSlicer.

    • If it doesn’t appear, select Configuration > Configuration Wizard

  • At Prusa FFF tab, deselect 0.4mm nozzle for the Prusa Mini. Select 0.4mm nozzle for Prusa i3 MK3S & MK3S+

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  • At Filaments tab, deselect Prusament PLA and Prusament PVB. Select Prusa ABS, Prusa PETG, Prusa PLA

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  • At Files association, select both boxes (Associate .3mf files to PrusaSlicer, Associate .stl files to PrusaSlicer)

  • Select Finish to complete the configuration wizard

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  • Select File > Import > Import Config Bundle

  • Select the PrusaSlicer config file that one downloaded at the start

Using the Slicer

Add STL

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Move

  • To move the model, click and drag it

  • For greater precision, select the model, then select Move in the left toolbar (M)

    • You can drag the model from the coloured boxes

  • The position is displayed in the right info panel

    • These numbers can be changed directly if needed

    • The position is calculated from the centre of the model

  • To automatically arrange the items, select Arrange in the top toolbar (A)

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Rotate

  • To rotate to a face, select Place on face in the left toolbar (F), then click on the face (highlighted in white)

    • Ensure the correct face is selected. This can be difficult on models with round faces

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  • For greater precision, select the model, then select Rotate in the left toolbar (R)

    • You can rotate the model from the coloured boxes

    • There are default angles which the model can snap to. The inner ring has 45° increments, outer ring 5°. Move the mouse to these lines to snap to them

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  • The rotation is displayed in the right info panel

    • These numbers can be changed directly if needed

  • Rotation can be reset to default by selecting the orange return arrow in the right info panel

Slice

  • In the right info panel set the following settings

Print Settings

0.20mm Best

Filament

Manny Carbon PETG

Printer

Original Prusa i3 MK3S $ MK3S+

Supports

None

Infill

10%

  • Press Slice now

  • The view now switches from 3D editor to preview

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Supports

  • In the right info panel there is now a Sliced Info section where you can note the time of print

  • The breakdown of the type of printing features is viewable in the top left box

  • We are interested in the light and dark blue parts of the print which are overhangs and bridges

  • The printer can handle short overhangs for example the text on the bottom and the screw holes in the model

  • The printer cannot print in mid air, an example problem area has been circled in blue in the image below

  • To fix this we can add supports

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  • In the right info panel set the following settings

Supports

Support build plate only

  • This setting adds supports if the overhanging area is above the build plate

  • They are the most reliable supports and the easiest to remove

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  • Highlighted in blue in the above image, there is still unsupported overhangs.

  • In the right info panel set the following settings

Supports

Everywhere

  • Everywhere there is an overhang, there will be a support

  • This offers the greatest support but there may be unnecessary supports which can be hard to remove and waste filament

  • Note the supports in the holes which will be hard to remove

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Printer Settings

  • We can adjust the preset printer settings to change its characteristics such as improve strength

  • In the top tabs, select Print Settings

  • Select Layers and perimeters

  • We will adjust the perimeters of the model. This is the bes way to improve the strength of the model

Perimeters

4

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  • Select Infill

  • We will increase the fill density. This will improve the top layer of the print and increase strength

Fill density

10%

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  • In the top tabs, select Plater to return to the preview

  • You will have to reslice the model, select Slice now

  • Use the right slider to scan through the layer

    • You can now see the thicker perimeters and great fill

  • The Sliced Info panel has updated to reflect the changes

  • The below images show the changes have used an extra 3.2g of filament and increased print time by 9min

    • Thus when changing setting think about how it will impact the print time and filament used

../_images/ps_original.png ../_images/ps_resliced.png

Saving to SD

  • To make it easier to select the correct print it is recommended you leave the top level directory blank

    • I put the previous print in a folder so I have a record

    • Go to File Explorer and delete/remove the previous files

  • Click Export G-code

Advanced Slicer Options

Scale

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Cut

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Painted Supports

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