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Prusa Printers & Slicer

Maintenance

Overall maintenance check out https://help.prusa3d.com/en/article/i3-printers-regular-maintenance_2072

Maintenance on the rods https://help.prusa3d.com/en/guide/maintenance-tips_23200/

Printable Parts

WARNING: Extruder parts should be black due to sensors needing it.

Check out https://www.prusa3d.com/prusa-i3-printable-parts/ for the part list and https://help.prusa3d.com/en/article/printable-parts-for-original-prusa_1824 for info on how to print it.

Bed Sheets

Damage

You can spot damage if a print has a hard time coming off. You can also spot damage if you see your previous print on the surface.

Paper Glue Sticks

Note that paper glue sticks operate as a separating agent and is the reason why Prusa Carbon Fiber (https://www.prusa3d.com/product/prusament-pc-blend-carbon-fiber-black-800g-2/) is provided with a glue stick in everything since it sticks too strong.

We don’t recommend printing with PCCF on a smooth PEI sheet. This material adheres greatly to the PEI surface and may cause damage to it. This type of damage is not covered by the warranty. If you need to print on a smooth surface, spread a thin layer of paper glue stick on it.

Also, if you often print with PCCF on the satin sheet, we recommend using a glue stick to prevent surface wear-out.

TIP: Don't be afraid to use Paper Glue Sticks for anything! It never harms anything and as long as you put on a thin layer it just makes the print surface look smoother. Trade off is more work cleaning sheet.

Materials Matrix

As you can see below, satin is more versatile with the tradeoff being more easier to scratch (have to use plastic scrappers).

material_sheets.png

Bed Settings

Z Calibration

My personal printer calibration for 0.4mm nozzle is around 1.8 on satin and around 1.82 on texture.

Leveling & Calibration

Every print a calibration test happens before it starts. The default setting is a 3 x 3 with 3 probes each. Personal note is that larger prints to be more than that so on the printer LCD screen, adjust bed leveling to do 7 x 7 with 5 probes each. You can also use OctoPi bed level visualizer to see what it looks like.

To test the results use this print https://www.prusaprinters.org/prints/36706-bed-level-test/files

Source is https://help.prusa3d.com/en/article/mesh-bed-leveling_112163, https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles-.../guide-nylock-mod-for-mk3-and-mk3s/

Nozzle

E3D Revo is where is at. Use it! However for posterity sake here's some old notes that some still apply to Revo.

Changing

Official instructions at https://help.prusa3d.com/en/article/changing-or-replacing-the-nozzle_2069

Post install

  1. PID Calibration (makes sure temp sensing is calibrated for new nozzle)
  2. First layer (make sure the .5 mm gab you eyeball is still acceptable)

Prusa Slicer

TPU Settings

Settings for TPU that seem pretty good https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-print-tips-archive/here-are-my-settings-for-printing-sainsmart-flexible-tpu/

Infill Patterns

Most don't really save much of any time but support cubic is one of the fastest with least filament and 3d honeycomb the slowest. Prusa themselves usually use grid which is one of the fastest but strongest is gyroid and is generally fast. Check out https://help.prusa3d.com/en/article/inifill-patterns_177130 for detailed advantages of each.

Support Structures

Test out doing multi filament prints like PLA and PETG since they don't have the greatest annealing. Short of that, Prusa doesn't have good defaults. It's good when using water soluble filaments but for easy to remove supports of same filament (relatively) use the below settings...

  1. Contact Z Distance: 0.25mm
  2. Pattern Spacing: 3mm
  3. Interface Layers: 4
  4. XY seperation between an object and its support: 75%

Source is https://forum.prusaprinters.org/forum/prusaslicer/prusaslicer-hard-to-remove-supports/

Nozzle 0.25 Tuning

  • Speed for print moves
    • Perimeters: 20
    • Small perimeters: 15
    • External perimeters: 20
    • Infill: 30
    • Solid Infill: 20
    • Top solid infill: 20
    • Support material: 30
    • Bridges: 20
    • Gap fill: 20
  • Speed for non-print moves
    • Travel: 60
  • Acceleration control
    • 200 for everything!
  • Auto speed
    • Max print speed: 60

Personal note that more success was noticed with 100% infill for smaller prints.