Description: This article contains some of the most frequently asked questions about Metal filament in Summer 2019.

Q: What is Metal filament?
A: Metal filament is usually PLA filament mixed with metallic powder. It produces models that appear as though they were made of metal such as bronze, brass, or cooper. It is used for projects such as home hardware and artifact replicas, as well as jewelry.

Q: Why would I use Metal filament?
A: It is highly durable and not soluble. It has very little shrinkage during cooling.

Q: Why wouldn’t I use Metal filament?
A: It is difficult to print with as it requires fine-tuning of nozzle temperature, a need to regulate the flow rate, and post-processing.

Q: What temperatures do I print Metal filament at?
A: While the exact temperature will vary based on your printer, the filament you are using, and your preferences, the recommended range of temperature for Metal filament is 195-220°C, and 50°C for the bed temperature.

Q: What sizes of filament do I need?
A: The size of filament that you need will vary based on your printer. Currently there are 1.75mm and 2.85mm filaments available. Usually printers will only support one of these sizes, so ensure you are using the correct size.

Q: Why is there 3.0mm filament listed online?
A: 3.0mm filament is another name for 2.85mm filament. It was originally used as an easier way to purchase filament, rather than using a rather specific number of 2.85mm. However, over time some manufacturers did not realize this and started making 3.0mm filament, so be sure to check the size in the specifications for the filament. This will normally be listed as true diameter and should be listed as 2.85mm rather than 3.0mm. 1.75mm filament however does not have this issue, and you can purchase it without any inconveniences.

Q: What print speed should I use when printing with Magnetic Iron filament?
A: The exact speed will vary based on your printer and your personal preference, however typically 30mm/s - 40mm/s is the recommended print speed.

Q: What retraction settings should I use?
A: Retraction settings (speed and length) will vary greatly based upon your printer, what type of extruder you are using, and what filament you are using. To fine tune this based on your printer, you can follow this guide: https://www.matterhackers.com/articles/retraction-just-say-no-to-oozing.