3D Printing Pure Metal with Filamet™
Working with Filamet™
Due to its high metal content, Filamet™ will inherently break more easily than standard PLA. Following these instructions will make Filamet™ easy to use.
Bronze is the best material to start with since it is easy to print and sinter. The Getting Started Bundle comes with everything you need to print, debind, and sinter Bronze Filamet™, minus the printer and kiln.
Spool Placement
- Place the spool so that pull and friction are reduced as much as possible. The filament should come off the spool straight into the feeder. For Direct Drive, this means you simply hang the spool 12-18 inches* above the printer. For Bowden fed printers, this means placing the spool next to or under the feeder.
- Use a Filawarmer to ease the path from spool to printer.
- The metal particles in Filamet™ are surrounded by plastic. This plastic keeps the memory of its shape on the spool. As Filamet™ passes through the warmer, the memory of the Filamet™ is reset and prints with ease. This effect lasts for about a day.
- Caution! Heating the entire spool at once will cause the filament to become extremely brittle. It’s important to heat only the single strand as it goes into the printer.
- To report any issues with Filamet™ after trying a Filawarmer, please contact [email protected].
Filawarmer Setup
The Filawarmer warms, strengthens, relaxes, and anneals the filament as it comes off the spool. It comes pre-programmed to the perfect temperature.
Direct Drive Extruders: Hang the Filawarmer so that the top of the warming tube is at the same level as the spool center hole. The bottom of the Filawarmer should be about 400mm from the top of the extruder.
Bowden Extruders: Hang the Filawarmer so that the bottom of the warming tube is at the same level as the spool center hole. The top of the Filawarmer should be against the bottom of the extruder feeder.
(Purchase a Filawarmer in our Online Store)
The Best Nozzle
Use a 0.6mm or larger hardened steel nozzle for the following filaments:
- Aluminum 6061 Filamet™
- Bronze Filamet™
- Copper Filamet™
- H13 Tool Steel Filamet™
- Inconel® 718 Filamet™
- Pure Iron Filamet™
- Rapid 3DShield Tungsten Filament
- Stainless Steel 17-4 Filamet™
- Stainless Steel 316L Filamet™
- Titanium 64-5 Filamet™
- Amaco 46-D Ceramic Clay Filamet™
- Basalt Moon Dust Filamet™
- Silicon Carbide Filamet™
- Zirconium Silicate Ceramic Filamet™
Use a 0.8mm or larger hardened steel nozzle for the following filaments:
Settings, Supports, and Build Plate Preparation
Slicer Settings
Resolution: 0.12 – 0.2mm is recommended for best results.
Wall Thickness: The minimum recommended wall thickness for parts that will be sintered is 1.8mm.
Top/Bottom Thickness: The minimum top/bottom thickness for parts that will be sintered is 1.8mm.
Infill: The minimum recommended infill density for parts that will be sintered is 30%. For best results, it is recommended to have 70 – 100% infill density for parts that will be sintered. Less than 100% helps to allow space for gases to escape. The recommended pattern is Lines/Rectilinear.
Hotend Temperature: Start at 210°C (410°F) and tune in the range of 190-230°C (374 – 446°F). Going under 190°C (374°F) can cause jamming. Going over 230°C (446°F) can cause debinding in the nozzle, resulting in a jam.
On Bambu Lab X1 Carbon, default printing temperature of 220°C tested and recommended.
Build Plate Temperature: Optionally, set the print bed to 40-65°C (104 – 149°F). 65°C (149°F) is recommended for glass/G10 build plates. This setting is optional for other build plate materials.
Printing Speed: Recommended 60-80mm/sec.
On Bambu Lab X1 Carbon, default printing speed of 120-150mm/sec tested and recommended.
Flow Rate: Set the flow rate to 120 – 135% to start and adjust it as you go. The Universal Calibration Rings model can be used to tune your flow rate.
Support Recommendations
Settings:
Structure: Tree
Branch Angle: 40° or less
Branch Diameter: 2mm+
Branch Diameter Angle: 5°
Placement: Touching Build Plate
Overhang Angle: 50°
Materials: Filamet™, PLA. PVA, Breakaway
The settings outlined above are what has been tested to work best with Filamet™. Other settings may be used, results may vary.
Build Plate Preparation
With a glass build plate, clean the build plate with isopropyl alcohol and print directly on the clean glass. To remove the print, remove the hot build plate from the printer and rest it on a cool/cold surface. Do not freeze the entire print. A razor blade can be helpful in removing stubborn prints.
With a powder coated spring steel build plate, no preparation is required.
With a PEI, aluminum, or other build plate type not mentioned, apply a layer of blue painters tape. For easier removal of prints, heat the build plate before removing the print.
Note: Do not print Filamet™ directly onto smooth PEI/PC. Prints will weld to the build plate.