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Printing 1.75mm filament with Lulzbot Printers
| By Michigan Tech's Open Sustainability Technology Lab.
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Printing 1.75 mm filaments using 3 mm printers such as Lulzbot TAZ 6 and Lulzbot mini
- You can print with 1.75 mm filaments using printers which use 3 mm filaments by default.
- The page will describe the methods by just using software and both software and hardware to get even more better results.
Software Method: (Difficulty: Easy)
- This is a very simple method with which you only have to change software settings in Cura Lulzbot.
- . Change the print setup to custom.
- . Find "Material" Settings.
- . Change the "Diameter" to 1.75 as shown in the picture
- . Make sure that the filament is properly gripped to the extruder motor before printing.
Hardware Method 1: (Difficulty: Moderate)
- Changing the filament diameter in the software is the necessary step to perform for any of the hardware modifications.
- Changing the filament diameter to 1.75 makes the extruder motor go fast and pull the filament faster compared to the 3 mm filament.
- Since the heating block on the Lulzbot printers is designed for 3 mm filaments, the heating might be ineffective with the higher extrusion speed and having air in between the heater and the filament.
- The problem can be solved by inserting a small piece of PTFE (teflon) tube inside the heater which has Outer diameter of 3 mm and inner diameter of 1.75 or 2 mm.
- PTFE tube 3mm OD 2mm ID
Hardware Method 2: (Difficulty: Hard)
This can also be done by changing the whole hotend and repurposing the printer to print only 1.75 mm filament.
- Hotends for Lulzbot printers are available at e3d website.