Endless Exploration EX12 (Jan. 2026) High Performance PCTG Composites
Like PETG? You'll love PCTG! PCTG, like PETG, is an amorphous co-polyester, but PCTG is more impact, chemical, and weather...
Stories
Endless PLA #40 (Dec 2025) - Reflection: An Exploration Encore
Reflections Revenge... Sounds sinister, but with good intentions I bring you an encore to November's Endless Exploration. You can read...
Endless Exploration EX11 (Nov. 2025) Reflective Filament for 3D Printing
Reflecting on the past I can still remember dressing up as a ninja for Halloween. My parents we're a little...
Endless PLA #39 (October 2025) - Festive Fall Fun
We kicked off the fall season with a trip to the East Coast for a 3D printing festival, 3D Printopia....
Endless Exploration EX10 (Sept. 2025) High Density Metal HTPLA
A brief history of Protopasta metal 3D printing filament Yes, you can print with metal on your filament 3D printer!...
Endless PLA #38 (August 2025) - Unleash Your Inner Blockbuster
When it comes to movies, I really look forward to summer. You can always count on Hollywood to bring the...
Endless Exploration EX9 (July 2025) USA-made Glass Fiber HTPLA
A brief history of HTPLA Protopasta kickstarted High Temp PLA (HT-PLA) in 2013. Heat-treatable High Temperature PLA was a new...
Endless PLA #37 (June 2025) - Custom made, inspired design
We recently traveled to Rocky Mountain RepRap Festival (RMRRF), and while the focus of a 3D printing festival like this is...
Endless Exploration EX8 (May 2025) Bone or stone?
This month we explored Calcium Carbonate (CaCO3). CaCO3 is interesting as both an aesthetic and functional additive. We've used it...
Endless PLA #36 (April 2025) - Spring is here!
For April's contents, we took inspiration from the season. We thought more marble + smoothie colors (defined by their black...
Endless Exploration EX7 (March 2025) A nylon alternative?
It's not nylon, but Polyketone (POK or PK) is marketed as a nylon alternative. Now there are many grades of...
Endless PLA #35 (February 2025) - Iceland Inspires!
Have you been to Iceland? If not, I highly recommend visiting! If so, go again!!! ;-) Last August, I visited...
Endless Exploration EX6 (January 2025) Anodized Aluminum?
No, we didn't make aluminum filament, but anodized aluminum was our inspiration to explore adding color to Stainless Steel PLA for January's...
Endless PLA #34 (December 2024) - A time for celebration!
Shut out everything that's going on in the world. Close your eyes and think about your favorite holiday memories. What...
Endless Exploration EX5 (November 2024) Dissipative Filaments for ESD Applications
Dec 2024 update: Static Dissipative (ESD) PLA, CF-PLA, and PETG now available. The title is not so witty, so let's get...
Endless PLA #33 (October 2024) - More change is good :-)
Fall is all about color change, and gold pearl gives a fall vibe, so I added it to green-to-yellow thermochromic for Chlorophylled (below left) and...
Endless Exploration EX4 (September 2024) Glow for it!
The days are getting shorter again and Halloween is next month. It's the perfect time for fun with glow-in-the-dark filaments,...
Endless PLA #32 (August 2024) - Change is Coming!
It's not every month we get a new ingredient! We've created Protopasta's first Thermochromic filaments just for June + July subscribers...
Endless Exploration EX3 (July 2024) TPE & TPU materials
In our first two Endless Explorations, we explored high speed and low gloss PLAs. For EX3, we chose some materials...
Endless PLA #31 (June 2024) - Completing the Rainbow
We're celebrating 5 years of Endless PLA! With filaments like Candy Rainbow, June's Endless PLA is so sweet you'll want to eat...