Protopasta Brass Filled PLA 3D Printer Filament | ProtoPlant Metal-Filled PLA Plastic Printer Filament with 60% Brass | Polish and Patina Friendly Metal Composite Filament | 500g Metallic Spool

Very cool filament, prints easily and functions as described, magnets stick to it and it's easy to get that rusted look with a light sanding and spraying a mixture of hydrogen peroxide, vinegar, and salt.

I know that some people are reporting issues with using this filament, and to be honest, it is important to not use a brass nozzle. I use a .4mm steel nozzle on my Anycubic Mega Pro without any issues. The filament is wound nicely on the reel, and the prints are beautiful. They have a heavy feel to them, and have some slight magnetic qualities. The only downside that I have found is that the amount of material on the reel is significantly less and the cost is just a little high. But if you want a nice looking, and feeling print then you might want to give this a go. Just don't forget to upgrade that nozzle!

I love how this stuff looks feels and sounds. This looks like metal once polished, weighs about right amount, works with my ender 3, has the heat conduction of metal, sounds and pottery or stone, but a bit tougher.

So far this material is very well made, you can get a good finish on parts made and I have gotten the rusting solution to work on it, which I do plan to layer a clear coat over it for protection and to keep staining anything else to a minimum, but this is a fair warning to everyone using this material about it's weight, It's stated to be 40% brass powder in mass, which means you have less PLA by weight. From my back of the napkin math about a peice of filament from normal pla at 4ft is about 4 grams, but this metal mixed filament is 7grams at the same length of filament. That means the length of the full spool of material is roughly half of what you would have otherwise, so when I made my parts in the slicer showing the total weight I underestimated the amount of material I needed, and had to keep restocking spools as a result. So after my 3rd purchased I can finally finish my parts I wanted even though I thought I would only need about 1kg to print, my first part i made was about 50%heavier then I expected. But after I thought about that issue and it made sense as to why. But other then that I have had absolutely no clogging, the print quality is about perfect!(exceptions to the spots where I had to stop the print and wait for more material to arrive, that was user error at best and will be covered by the sanding anyway), the color is a bit underwhelming fresh off the bed but comes out well after sanding, and the InstaRust solution does work, but it needs time for the parts to corrode unlike a fresh peice of iron, feels heavy and strong so it's functionally the same as having a part made of metal, the price is just a bit high for the product. But it does work as intended so that's not a downside worth worrying about, unless your like me with 1 color printers only, but I would highly recommend using a printer with multicolor print options, as you can save greatly on the cost and just do a over coat of metal filament to get more bang for your buck, and use a cheaper material for the infill. (Side note) You can use a brass nozzle to print this material, I was worried about clogging or eroding the tip but after my first spool came in it was left running for almost a week straight with no issues, the fancy new hardened steel tips I got for this specifically clogged immediately, but that may be due to the tip not getting heated enough, which was odd considering it worked for about 20 seconds into the first layer then stopped, but the cheap brass tips worked out the gate and haven't failed as of yet after 6 days of continuous use. I worried about this before purchasing so I hope this will help the next person who has the same question. I will try to add pictures after the print is completed!

It is heavier, not a lot, but it is noticeable. Certainly not sufficient to make a coin replica that will fool anyone. Two things that make it less desirable. First, they recommend a 0.6 nozzle or larger. Makes sense, but fine detail goes away quickly with that larger nozzle size. Second, it is very brittle. I dried it to 10% and still had it breaking. Forget loading it through an AMS or even a K1 ptfe tube. Even with the top mounted roller on my K1 it broke near the print head as it moved around. Layer adhesion is really good. Even at 195c print temperature the print is very strong. All that being said, there is definitely a use for this filament. Lower detail where you need a bit more weight. Specialty filament of course, but it might just fit your needs on that one project.

I have to admit I wasn't sure this stuff would really work. I like to 3d print a wide range of products from simple art pieces to complex motor drives. I usually end up 3d printing a mold blank, making a sand mold of it, and pouring it up in metal or making a compressed carbon fiber mold instead. I bought this to experiment on a brushless motor design i was working on and found it to be superior to the iron powder and epoxy technique i was using and didn't require 1/2 the work. I also 3d printed a couple test statues 1 to rust and 1 to electroplate found the rusting quality for aging worked very well however i had to use a special paint to get it to electroplate evenly. was able to print using base pla settings and it printed all parts with fewer then expected blemishes then expected. All in all its a great product.

Looks great and printed good.

I printed this using slower PLA settings at 205c on an Ender 3 with no issues. When polished the filament looks like copper as advertised. Parts come out looking like terracotta at first and have a similar feel and density to them. Printed parts have a very nice feel. The filament is substantially weaker than regular PLA and should not be used for structural parts. Because the filament is fairly brittle you should use a filament guide or keep the filament from having to take any sharp turns.

Price finally dropped to reasonable enough to try. For a metal fill this is the closest actual appearance I've come across. Does polish without smearing and gives a metallic shine not just a smooth plastic one. I was cautious and didn't experience brittle filament as some warn about. Details come out well and are strong. Printed with a .4 nozzle no clogging issues picked mid suggested temp range no problems.

ich bin sehr zufrieden es ist genau das was ich gesucht habe es ist magnetisch sehr stabil und kann rosten zwar teuer aber es ist denn preis wert

Interesting filament will purchase again

While I have not tested the rustable part yet, the magnetic attribute of this filament is definitely true. As you can see in the photo, I printed a nice holder for my ES121 screwdriver. The filament is easy to work with, I am printing at 200C, it sticks well to a heated (60C) bed (with a hint of hair spray). The material is definitely about 50% denser than normal PLA, I estimate it to be about 1.89 g/mm^3. I am using a 0.6mm nozzle currently, but only because I don't like waiting. And for most non-high details required prints, a 0.6mm nozzle makes a difference in speed.

Fast delivery as I’m in the uk and I haven’t used it but I will definitely try it later as I say I only have a direct drive but if i slow the speed down I think it will be ok but thank you as I seen all the reviews on YouTube and I thought I got to try this out. Will package and I’m happy. Thank you