Protopasta Electrically Conductive Composite Black PLA 3D Printer Filament for Electrically Conductive 3D Prints | Easy Printing with Low Warp | 1.75mm Filament | 500g with Recyclable Cardboard Spool

I have tested out all the conductive PLA versions out there I can get my hands on and this one is the best. It is a bit harder to print than a standard PLA. Takes some refinement. I find 225C print temp is ideal for our applications. I have purchased this probably 10 times and the quality is consistent.

Four because it costs $100 a kilo but comes on the cheapest imaginable corrugated cardboard spool that keeps getting stuck in the AMS. I've printed dozens of spools with cardboard spools without a problem, will certainly make me think twice about buying from protoplasta again. That said, the filament itself is fine, prints well with stock settings, wasn't brittle and produced good prints. Using just using needle probes in a VOM, resistance was in the low kohm range over about 6". Probably low enough for shielding and strictly speaking, too low for anti-static. while you probably can't use it to carry useful power,, contact with it would cause an annoyingly hard to track down short. Treat it as a conductor and you'll be fine.Update: as I'm writing this and having to clear at least 4 jams so far, it may be more an issue with bad winding than just the spool, in any case, annoying for such an expensive product.

I am part of a community called Makers Making Change. We volunteer our time to make adaptive technology devices. I used this filament to print a palm ball stylus (a ball you can hold to operate touch screens). The original design called for a wire in the ball that runs down to the tip that contacts the screen. I thought about using conductive filament and found the Protopasta stuff. The palm stylus worked perfectly and looks great. The clients said the units worked perfectly. I have gone through two spools already with issue. Good stuff!

We've had great results with our prints, with beautiful detail and quick relays to our Arduino hook up. The filament is surprisingly brittle. We store it in a bag with silica dessicant, but still have frustrating prints that snap mid print or right at the end. Snapping also occurs when loading. The biggest frustration is that the filament residue seems to be left behind. We've had a series of prints with black speckles deposited within the color. If the print isn't painted the end results looks really bad, especially if you're trying to make a clear print.

High hopes that this would allow a 3D printed board. Too much resistance. *12V application in channels less than 30mm in length. I know this will improve, but for now, it is a miss.

This does exactly what I wanted. I can use it as low-temp solder and apply it directly to metal wires to make low resistance joints.This plastic seems somewhat less hard than normal PLA, I have not found brittleness to be a problem.The resistance is hard to measure and seems to vary depending on the voltage potential across the plastic. Measuring the resistance of my first circuit (w/o voltage connected obviously) disappointed me with a really big number; however, when I turned on the power and the LEDs winked on I was not disappointed at all!Filament runs at PLA temperatures and smells mildly of PLA-Waffles. ABS temperatures do not appear to burn the filament. The MSDS for this product (posted on Proto-pasta's website) notes that the conductive polymer could potentially be bad for people HOWEVER it is completely encapsulated in plastic and should remain inaccessible to biology. Combine that with the fact that PLA can biodegrade; store this stuff carefully, keep it dry, discard scraps. This is new technology.So far I have enjoyed using this filament with my new MYNT 3D pen. I have had a prusa mendel for about 2 years but haven't actually run this through the printer yet.The cardboard spool is cool. I didn't expect to like that but it's lightweight and you can easily punch a hole to hook the filament for storage (that way you don't have to cut off a foot of filament like when the end doesn't line up with the pre-cut hole on a plastic spool).

This filament didn’t work very well in my Bambi Labs printer and clogged the nozzle after only a few prints. The few prints that I was able to make were low quality because the filament seemed to blend together with a translucent filament I was also using. Perhaps my usecase is too specific, but this didn’t work for me.

At first I had the issue of the filament grinding and it would stop extruding. But after troubleshooting it was found to be my fault. The first layer was too close to the bed causing back pressure and eventually causing the hobbed bolt to grind up the filament and stop feeding.I also had the issue of the parts sticking too well to bare glass or pei, causing the print to stick to the bed and tear when removing. A light application of elmers purple glue stick resolved the over adhesion and I was able to then print 3 rolls on my Lulzbot Taz 5 perfectly.