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• https://shop.filament-pm.com/petg-orange-2018-1-75-mm-1-kg/p163

• https://shop.filament-pm.com/petg-orange-1-75-mm-1-kg/p51

• https://shop.filament-pm.com/petg-transparent-orange-1-75-mm-1-kg/p286

• https://shop.filament-pm.com/petg-orange-2018-1-75-mm-0-5-kg/p339 0.5 kg spool

Common to these filaments are the following values:

• Nozzle Temperature: 220 - 250 °C

• Bed Temperature: 80 - 90 °C

Prusa themselves have suggested the following values for printing with PETG on the MK2.5S, based on the manual for said printer:

• Nozzle Temperature: 240 °C

• Bed Temperature: 80 - 100 °C

Model Material Settings

Based 2023/5/24 testing using a temperature tower (how to slice), the following parameters were found to be most optimal for outer appearance of the model. Parameters not listed were left at PrusaSlicer’s Prusa i3 MK2.5S printer preset, Generic PETG filament preset, and 0.20mm 100mms Linear Advance printing preset.

Nozzle Temperature

• First layer: 245 240 °C

• Other layers: 245 240 °C

Bed Temperature

• First layer: 90 °C

• Other layers: 85°C85 °C

Retraction

• Retraction Length: 6 mm

• Retraction Speed: 30 mm/s

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• First layer speed: 12 mm/s

Since the Prusa i3 MK2.5S uses a PTFE/Teflon lined hot-end (link) (link), the nozzle temperature should not be set above 240 °C if possible. Prusa suggests a nozzle temperature of 240 °C.

Support Material Settings

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