Featured image of Prusa Cuts MK4S by 20% for Back-to-School Sale, Bundles Free Filament With CORE One+ (Source: Prusa Research)
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Prusa Cuts MK4S by 20% for Back-to-School Sale, Bundles Free Filament With CORE One+

Picture ofDavid Henning
by David Henning
Published Sep 4, 2026

The promotion also discounts selected Prusa Academy courses, filament, resins, and merch, while CORE One machines get free extras instead of straight price cuts.

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Prusa’s back-to-school sale is live through September 30, with the biggest hardware discount landing on the Original Prusa MK4S. The assembled version is 20% off at $799, down from $999, while the kit gets a 10% cut to $639 from $709.

Both versions also come with Prusa Academy’s “Design Principles for 3D Printed Parts” course for free.

The CORE One+ (Gen 2) and larger CORE One L+ stay at their regular prices, but Prusa is padding out the packages with free filament and the same Academy course. Here’s the printer deal breakdown:

Printer Price What’s included
Original Prusa MK4S (assembled) $799 (20% off; was $999) Design Principles for 3D Printed Parts course
Original Prusa MK4S (kit) $639 (10% off; was $709) Design Principles for 3D Printed Parts course
CORE One+ (Gen 2), assembled $1,299 (no price cut) 2× Prusament PLA + Academy course
CORE One+ (Gen 2), kit $999 (no price cut) 1× Prusament PLA + Academy course
CORE One L+ $1,999 (no price cut) 2× Prusament PLA + 1× Prusament PETG + Academy course

There are also discounts on a handful of Prusa Academy courses, at almost half price:

prusament petg translucent bundle hero
Prusa’s back to school sale also includes 15% off its Prusament filaments. (Source: Prusa Research)

There are a few smaller discounts if you don’t need another printer. Prusament PLA and PETG, plus Prusa’s resins, are 15% off; Prusa merch is 10% off. The Starter Paint Set and Miniature Painting course bundle also gets special back-to-school pricing.

One thing absent is INDX. Prusa explicitly excludes INDX-equipped CORE One+ and CORE One L+ variants from these printer offers. That’s worth keeping in mind given that Prusa has only just expanded INDX into a sprawling 14-SKU lineup of complete printers and upgrade kits.

All of the offers are live now on Prusa’s webstore and run through September 30.

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About the Author:
David is an All3DP Editor with four years of journalism experience. Always eager to dive into any tech-related topic, he will write about pretty much anything. Except golf.
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