12/14/2023 0 Comments Prusa slicer supports hard to removeWhen the filament passes through the hot end the moisture rapidly expands creating bubbles in between layers, poor layer adhesion, inconsistent extrusion due to material expansion and thus poor surface quality. Like many other plastics, PETG is a hygroscopic material, absorbing moisture from its surrounding environment. When not in use PETG should be stored away from sunlight and in a resealable bag with desiccant. A raft is recommended for the best results. With a compatible combination the perforation on the board will grip the model during printing to help prevent lifting or warping. This method is generally successful however will rely on compatibility between the PETG and material of the perforated board. We do not recommend printing directly to glass without using an adhesive like Magigoo. If models are fusing to the sheets you can increase your nozzle gap or add a layer of Magigoo / glue to act as an interface. PETG can stick to glass, printing surfaces and sheets very well, sometimes too well. If you are not using Magigoo (an adhesive which self-releases), we highly recommend removing your models immediately after printing when printing directly to glass. Other options - Buildtak or FlashForge style sheet Most popular -Straight onto perforated board Most popular - Buildtak or FlashForge style sheet Overlay options - Buildtak or FlashForge style sheet | PEI sheet. Recommended - Straight on glass bed with a thin layer of Magigoo Original or glue stick. Stop extruding the PETG filament after the previous material has been completely purged and cleaned out. If the printer is currently loaded with a different lower temperature material, unload that material at its recommended printing temperature, and then load and extrude your PETG filament at 230-240☌. Stop extruding the PETG filament after the previous material has been completely purged and cleaned out, lower the temperature to 230-240☌, and extrude the PETG plastic for a few more seconds.Ĭhanging from a lower temperature material: It is important to load the PETG at this higher temperature so the previous material can be pushed out. If the printer is currently loaded with a higher temperature material, unload that material at its recommended printing temperature, and then load and extrude your PETG filament at that same higher temperature. Stop extruding the PETG filament after the previous colour is completely purged.Ĭhanging from a higher temperature material: If the printer is currently loaded with a different PETG material, unload that material at 230-240☌ and extrude your PETG filament at the same temperature. If you typically have issues with moisture in your filament, you can read our tips and comments on filament storage to determine if a dry box will be beneficial. PETG doesn't have any specific feeding path requirements.Īs a general tip we recommend avoiding long and complicated feeding paths that can cause bends in the filament, this can introduce drag on the filament that may result in difficulties feeding and extruding. PETG exhibits a low chemical resistance and moderate temperature resistance, softening at 80☌ (Glass Transition and Vicat temperature). Although not a direct replacement for ABS, PETG is a great choice for users who experience difficulty printing ABS due to warping or cracking and require improved mechanical properties to PLA with excellent dimensional stability. PETG offers improved mechanical and thermal properties when compared to PLA, while maintaining excellent printability and reliability. Due to the benefits and popularity of PETG, it is uncommon to print pure PET filaments. The glycol in PETG offers improved printability and toughness compared to other PET copolyesters making it the most suitable variant for 3D printing. PETG is a glycol-modified variant of PET (Polyethylene Terephthalate) and the most popular material in the PET family of plastics. This user guide was last updated - 11th March 2020Ĭombining excellent printability and balanced mechanical properties, PETG is a popular material due to its improved mechanical and thermal properties when compared to regular PLA. We have highlighted important topics with a star (*) so please don't feel intimidated as sections in this guide may not be relevant to everyone, - Matt Tyson, 3D Printing Solutions This article has been written to provide both printing and troubleshooting tips along with tips for post-printing processes like painting and support removal. Thankyou for taking the time to read our guide on 3D printing PETG.
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