MAGNETIC IRON PLA
Proto-pasta Magnetic Iron PLA - as its name implies - responds to magnets and behaves similarly to pure iron, even to the point of rusting! Magnetism opens up a new world of practical applications and fun creations, and is an especially great choice for costume pieces and props!
What is it made out of?
Proto-pasta Magnetic Iron PLA is a compound of Natureworks 4043D PLA and finely ground iron powder. In filament form, it is rather brittle, and should be handled with care to avoid breakage.
Magnetic vs. Ferromagnetic
Iron is defined as “magnetic” but it is, more accurately speaking, ferromagnetic. That means it is attracted to magnetic fields. In short, magnets stick to it. So, you should note that magnets stick to prints made from Magnetic Iron PLA, but printed objects will not function as magnets. We call our material “Magnetic Iron PLA” to communicate that this material allows users to include the added benefits of magnetism when designing and printing 3D objects.
Could I magnetize my finished prints?
We haven't tested this ourselves, but it makes sense that thin prints could be magnetized by rubbing them 10-100 times across the positive side of a large magnet. Ferromagnets will tend to stay magnetized to some extent after being subjected to an external magnetic field due to a fascinating process called hysteresis.
Permanent magnetism requires the use a strong electromagnetic coil (around 2 Tesla), but that process would melt your print, so as awesome as it sounds, don't try it.
Is It Stronger?
No. The strength of Proto-pasta Magnetic Iron PLA is similar, and likely somewhat less, than the strength of standard PLA. The iron in the filament is too finely ground to provide an increase in overall strength.
Is it conductive?
No. The iron is too small and separated by the PLA to offer any noticeable amount of conductivity. You should try our Conductive PLA!
Rusting Magnetic Iron Prints
To rust a print made with Magnetic PLA, lightly abrade the surface of your print with a wire brush to expose more iron particles to the air, then submerge the print in a salty solution for 2-3 days (or longer, if you're going for a very rusty look!).
Spool Amount: Density vs. Length
3D printer filament is sold in grams /kg, even in the case of exotic materials with greater density. Our Magnetic Iron PLA is quite dense compared to standard PLA. As a result, a 500 g spool of Magnetic Iron PLA contains about 100 meters of filament, vs. nearly 200 meters on a 500 g spool of standard PLA.
Proto-pasta Magnetic Iron PLA prints at similar temperatures as standard PLA, though we have found it seems to like it about 10 degrees cooler than what we usually print PLA at. Quick cooling seems to increase the tendency to warp, so you might try turning your fan off and slowing your printer down a bit. Experiment and see what work best with your machine.
1.8 g/cm3 (1800 kg/m3)
Bed Temp (if available, is not required): 50° C
Hot End Temp: 185– 195° C
All information provided courtesy of Proto-Pasta
Another unique filament to add to your collection. A filament that can be polished! What ideas do you have for this extraordinary filament?
If you are new to exotic filaments, the team at Proto-Pasta have some great tips for you. Plus some answers to frequently asked questions, both definitely worth a read.
You can purchase whole spools/reels/coils from these suppliers.
Middle East -
United Kingdom - 3D FilaPrint
USA - Proto-Pasta
Note: All filament weights include packaging. Average weight for 5 metres of 1.75mm filament (without packaging) is 37gms.
Samples are shipped in a clear resealable bag, with a small sachet of silica gel.
Manufacturer recommended printer temperatures.
Extrusion Temp: 190ºC - 210ºC
Platform Temp: TBC
Platform Materials: TBC
Above temperatures are a guide only.
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This filament is unlike anything you have tried before!
It comes out like some kind of pasty clay. But prints very easy, just like other PLA filaments. Except the first layers, make sure your bed sits a little lower than normal (±0.3mm extra offset) so it can extrude more easily the first layers. A little sanding with a fine sandpaper makes it slightly shine. And if you like, you could give it a salt water bath to create an awesome rusty effect. And remember, this filament is actually MAGNETIC!