Protopasta Metals are made with real metal powder, but print similarly to standard PLA (for extended use, select a wear resistant nozzle). They print with a...
Dustin shares an improved (and faster) method for rusting prints made with Magnetic Iron PLA!
The coolest thing (I think) about our Magnetic Iron PLA is that you can rust prints made in this material! This gives a whole new look to 3D printed objects that is particularly great for cosplay, artifact replication, and decorative objects.