Description

Have you ever wanted to create something with your 3D printer that includes electronics? Maybe an LED, touch sensor, or some other genius invention to solve the world’s problems? Then Proto-pasta Conductive PLA is the perfect material for you. 

You can read all the details here.

Electrify prints for Simple Circuits & Touch-Sensitive Devices!

• Available in 1.75 & 2.85 (3) mm diameters.
• 125g are loose coils, 500g is on a 8″ diameter spool, 2kg is on a 12″ diameter spool.
• Prints with standard PLA settings (or hotter) – no heated bed or special nozzle required
• Usable on most PLA-compatible printers, such as Makerbot, FlashForge, Dremel, Ultimaker, Printrbot, and more!
• Great for simple circuitry and interactive projects
• Also experiment with ESD or 3D printed bearings!

How Conductive Is It?

• Volume resistivity of molded resin (not 3D Printed): 15 ohm-cm
• Volume resistivity of 3D printed parts along layers (x/y): 30 ohm-cm
• Volume resistivity of 3D printed parts against layers (z): 115 ohm-cm
• Resistance of a 10cm length of 1.75mm filament: 2-3kohm
• Resistance of a 10cm length of 2.85mm filament: 800-1200ohm

Link to original kickstarter for more information:
http://www.kickstarter.com/projects/1375236253/electrically-conductive-pla-3d-printer-filament

Suggested Applications
Proto-pasta Conductive PLA is a great choice for low-voltage circuitry applications, touch sensor projects, and using prints to interact with touch screens (which require low conductivity, that’s why you can’t use your smart phone screen with gloves on). As a general rule, anything you can run through a 1K resistor should be doable with our material (if you design the conductors to be the right size). This will easily run a low current Arduino, if you are not powering much with it. Also, experiment with ESD or 3D printed bearings!

What is it made out of?
Proto-pasta Conductive PLA is a compound of Natureworks 4043D PLA, a dispersant and conductive carbon black. In filament form, it is quite flexible, and is compatable with any PLA printing printer.

Strength and Performance
We have not done substantial mechanical testing on this product but have some subjective parameters that should be useful in comparing this material with others:
Strength: Fair strength. More flexible than PLA, but less layer adhesion
Stiffness: Low, semi-flexible
Heat Resistance: Similar to PLA, use below 50C
Layer Adhesion: Fair layer adhesion. Not as good as normal PLA
Flexibility: Filament is quite flexible but will break if bent repeatedly (particularly 2.85mm). Printed parts are rigid if more than a mm or two thick. Thin sections are somewhat flexible but fail along layer lines if flexed more than a few times.
Failure Mode: If flexed to breakage, failure will be along layer lines.
Warping: Very low warping
Dual-Head compatibility: Compatible with (sticks to) PLA in dual material prints

Print Settings
Proto-pasta Conductive PLA is quite easy to print and is compatible with most printers that can print PLA.
Density:
1.15 g/cm3 (1500 kg/m3)
Parameters:
Bed Temp (if available, is not required): 50° C
Hot End Temp: 215 – 230° C (we run it on the hotter side to encourage layer adhesion)

       

Check out Proto-pasta’s blog here and some handy how-to guides here

Additional information