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Highly compatible, Protopasta prints & cardboard spools work! Not sure how?
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3 Recycled PLA colors added. Other Recycled PLAs, PETGs, & Carbon Fibers available too.
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Patina or Polish
Our powdered metal composites make real metal finishes possible.
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Enjoy the variety
Every multicolor spool is unique (23 now available)
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Beauty & Brawn
Beautiful, rigid Carbon Fiber now available in PETG, HTPLA, PLA, and Recycled PLA.
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community inspired

Specialty Colors
Our most unique, collaborative, & sought after creations
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Made in the USA + Highly Compatible

HTPLA & PLA are formulated for reliability + high speed. HTPLA prints like PLA. AMS compatible, add edge guards & spool weights as needed or use as a refill. Thanks for choosing Protopasta! Questions? Email support@protoplant.com

OUR MOST POPULAR PRODUCTS

Endless PLA Filament Color Subscription Endless PLA Filament Color Subscription
Endless PLA Filament Color Subscription
$14.99 USD for Contemporary / 50g Coils
$14.99 USD for Contemporary / 50g Coils
Iron-filled Metal Composite PLA 3D Print Iron-filled Metal Composite PLA 3D Print
Iron-filled Metal Composite PLA
$9.00 USD for 1.75mm / 100g Coil
$9.00 USD for 1.75mm / 100g Coil
Electrically Conductive Composite PLA 3d print Electrically Conductive Composite PLA filament
Electrically Conductive Composite PLA
$7.00 USD for 1.75mm / 50g Coil
$7.00 USD for 1.75mm / 50g Coil
Steel-filled Metal Composite PLA 3d print Steel-filled Metal Composite PLA polished 3d print
Steel-filled Metal Composite PLA
$12.00 USD for 1.75mm / 100g Coil
$12.00 USD for 1.75mm / 100g Coil
Black Carbon Fiber Composite HTPLA 3D Print Black Carbon Fiber Composite HTPLA Filament Spool
Black Carbon Fiber Composite HTPLA
$6.00 USD for 1.75mm / 50g Coil
$6.00 USD for 1.75mm / 50g Coil
Copper HTPLA 3d print Copper HTPLA polished 3d print
Copper-filled Metal Composite HTPLA
$12.00 USD for 1.75mm / 100g Coil
$12.00 USD for 1.75mm / 100g Coil
Joel's Highfive Blue HTPLA Filament 3D Print Joel's Highfive Blue HTPLA Filament Spool
Joel's Highfive Blue HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Iridescent Ice Clear Translucent HTPLA 3D Print Iridescent Ice Clear Translucent HTPLA Filament Spool
Iridescent Ice Clear Translucent HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
The Original Nebula Multicolor HTPLA The Original Nebula Multicolor HTPLA
The Original Nebula Multicolor HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Carbon Fiber PLA 3d print Carbon Fiber PLA filament
Clearance
The Original Carbon Fiber Composite PLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Galactic Empire Metallic Purple HTPLA Galactic Empire Metallic Purple HTPLA
Galactic Empire Metallic Purple HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Candy Apple Metallic Red HTPLA 3D Print Candy Apple Metallic Red HTPLA Filament Spool
Candy Apple Metallic Red HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil $0.00 USD
Amie's "Blood of My Enemies" Translucent Red HTPLA Amie's "Blood of My Enemies" Translucent Red HTPLA
Amie's "Blood of My Enemies" Translucent Red HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Matte Fiber HTPLA - Black 3D Print Matte Fiber HTPLA - Black Filament Spool
Matte Fiber HTPLA - Black
$6.00 USD for 1.75mm / 50g Coil
$6.00 USD for 1.75mm / 50g Coil
Brass-Filled Metal Composite HTPLA 3d print Brass-Filled Metal Composite HTPLA polished 3d print
Brass-filled Metal Composite HTPLA
$12.00 USD for 1.75mm / 100g Coil
$12.00 USD for 1.75mm / 100g Coil $0.00 USD
Empire Strikes Black HTPLA 3d print Empire Strikes Black HTPLA filament
Empire Strikes Black HTPLA with Silver Glitter
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil

OUR LATEST STORIES

Endless PLA #38 (August 2025) - Unleash Your Inner Blockbuster

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

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

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...

OUR NEWEST PRODUCTS

Endless Exploration Filament Subscription *new in 2024* Endless Exploration Filament Subscription *new in 2024*
Endless Exploration Filament Subscription *new in 2024*
$24.99 USD for 1.75mm / Coils
$24.99 USD for 1.75mm / Coils
Endless PLA Filament Color Subscription Endless PLA Filament Color Subscription
Endless PLA Filament Color Subscription
$14.99 USD for Contemporary / 50g Coils
$14.99 USD for Contemporary / 50g Coils
International Orange Opaque HTPLA International Orange Opaque HTPLA
International Orange Opaque HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Sun Gold Metallic Yellow HTPLA Sun Gold Metallic Yellow HTPLA
Sun Gold Metallic Yellow HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Lapis Lazuli Glitter HTPLA Lapis Lazuli Glitter HTPLA
Lapis Lazuli Glitter HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Granite Gray c-Matte PLA Granite Gray c-Matte PLA
Granite Gray c-Matte PLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Terracotta c-Matte PLA Terracotta c-Matte PLA
Terracotta c-Matte PLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Brick Red c-Matte PLA Brick Red c-Matte PLA
Brick Red c-Matte PLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil

SEE WHAT'S ON SALE

30% off items in SALE collection with the code SUMMERSAVINGS

White Opaque HTPLA 3D Print White Opaque HTPLA 3D Print
Clearance
White Opaque HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Matte Fiber HTPLA - Gray 3D Print Matte Fiber HTPLA - Gray Filament Spool
Matte Fiber HTPLA - Gray
$6.00 USD for 1.75mm / 50g Coil
$6.00 USD for 1.75mm / 50g Coil
Dragon Scale Purple HTPLA Dragon Scale Purple HTPLA
Dragon Scale Purple HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Summertime Green HTPLA Summertime Green HTPLA
Summertime Green HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Nebula Night Glow Fluorescent Multicolor HTPLA Nebula Night Glow Fluorescent Multicolor HTPLA
Nebula Night Glow Fluorescent Multicolor HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Watermelon Crush Red HTPLA Watermelon Crush Red HTPLA
Watermelon Crush Red HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Nebula Gold Dust Multicolor HTPLA Nebula Gold Dust Multicolor HTPLA
Nebula Gold Dust Multicolor HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil
Dusty Smoke HTPLA Dusty Smoke HTPLA
Dusty Smoke HTPLA
$5.00 USD for 1.75mm / 50g Coil
$5.00 USD for 1.75mm / 50g Coil