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3D Printing News Digest - July 2, 2026

Prusa Flash Summer Deal runs through July 14: 20% off MK4S Assembled (regular $999), 10% off MK4S Kit, free Prusament spool + Academy course. EU shipping free; US $69.99. CORE One+ gets reduced shipping. Verify at prusa3d.com.

Published Checked Jul 2, 2026
Short answer

Prusa's Flash Summer Deal runs through July 14, 2026: 20% off the MK4S Assembled (regular $999), 10% off the MK4S Kit, and a free Prusament spool with both. EU shipping is free; US shipping is $69.99 for MK4S. Free Academy course included. CORE One+ gets reduced shipping. Verify current prices at prusa3d.com before ordering. Checked July 2, 2026.

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Story briefPrusa Research / blog.prusa3d.com

Prusa Flash Summer Deal Through July 14 — 20% Off MK4S Assembled, 10% Off Kit, Free Prusament Spool + Academy Course

Checked July 2, 2026. Prusa Research launched a Flash Summer Deal running through July 14, 2026. Headline discount: 20% off the MK4S Assembled (regular price $999 USD); 10% off the MK4S Kit (regular price $729 USD). Both configurations include a free Prusament spool and the corresponding Prusa Academy course — MK4S Academy with MK4S orders, CORE One+ Academy with CORE One+ orders. Shipping terms: EU orders get free shipping on MK4S; US orders pay $69.99 shipping. CORE One+ receives reduced shipping (exact US rate not published in the promotion announcement). There is no public Prusa affiliate program — all purchases go through prusa3d.com directly. Verify exact sale prices and current stock at prusa3d.com before July 14. Bambu Lab's 4th Anniversary Sale (first-ever discounts on P2S, H2C, H2D; double credits on H2S, H2D, H2C) also runs in parallel through July 15. Checked July 2, 2026.

Workshop signal

The 20% MK4S Assembled discount is the most buyer-relevant number: it brings a fully-assembled i3-style machine with Input Shaper, Next Gen Extruder, and Prusa's proprietary upgrades within range of the Bambu A2L ($469–$569 Combo). The machines are not direct substitutes — the MK4S is a single-material, open-source ecosystem; the A2L is multi-material-ready and cloud-connected — but the price gap at this sale level makes the comparison worth running before July 14. The free Prusament spool softens the US shipping hit ($69.99 is the one line buyers typically push back on). The CORE One+ reduced shipping perk is the least-specified element of the deal; get the exact number from prusa3d.com before ordering a CoreXY at list plus a vague shipping line.

Bench notes+

Prusa Flash Summer Deal 2026 — confirmed terms as of July 2, 2026: MK4S Assembled: 20% off (regular $999 USD) → verify final sale price at prusa3d.com. Includes: free Prusament spool, MK4S Academy course. US shipping: $69.99. EU shipping: free. MK4S Kit: 10% off (regular $729 USD) → verify final sale price at prusa3d.com. Same free spool and Academy course included. CORE One+: reduced shipping (exact US rate not published in deal announcement — confirm at prusa3d.com). Includes: free Prusament spool, CORE One+ Academy course. Sale end date: July 14, 2026. No public Prusa affiliate program. Purchase direct at prusa3d.com. MK4S specs (baseline): Next Gen Extruder; Input Shaper for speed and quality; 250×210×220 mm build volume; open-source Marlin firmware; multi-material upgrade path via MMU3. CORE One+ specs: CoreXY motion system; 250×250×270 mm; Nextruder; Klipper-based firmware (via Prusa Connect); 500 mm/s print speed.

Market Position: Prusa is the only major FDM manufacturer currently running a flash discount alongside the Bambu Lab 4th Anniversary Sale (through July 15). The two overlap in price-tier when discounted but serve different buyers: Prusa MK4S is the choice for open-source ecosystems, repair-by-design philosophy, and a long parts-availability track record; Bambu A2L ($469–$569 Combo) is the choice for multi-material readiness, camera monitoring, and cloud-connected workflow. The 20% MK4S assembled discount is the strongest Prusa promotion visible in 2026; Prusa does not run public affiliate programs, which limits site coverage, but the deal legitimately reduces one of the more expensive assembled printers in its class. At $999 regular, 20% yields approximately $200 in savings — more than the US shipping cost. Watch line: CORE One+ reduced shipping exact US figure unpublished in the deal announcement — verify at prusa3d.com before ordering. Elegoo Hot Days Cool Deals (Saturn 4 Ultra 16K $499, OrangeStorm Giga $2,499) runs in parallel through July 13.

Open Questions:
  • What is the exact CORE One+ reduced shipping rate for US orders — the deal announcement does not specify a dollar figure?
  • Are sale prices applied automatically at checkout, or does a promo code need to be entered?
  • Does the free Prusament spool ship in the same box as the printer or separately, and which filament material and color is included?

Wait if: You are evaluating the CORE One+ — the reduced shipping amount is unspecified; get the exact figure from prusa3d.com before committing, since US shipping on a heavy CoreXY machine can be a meaningful line item

Buy if: You want a fully-assembled MK4S with open-source firmware and a long parts track record — the 20% discount is one of the deepest Prusa promotions visible in 2026; verify the exact sale price and place the order before July 14, You are already evaluating both Prusa and Bambu — both the Flash Summer Deal (July 14) and the Bambu Anniversary Sale (July 15) close within a day of each other; use the overlap window to compare final prices side by side before either expires

Related Coverage

Frequently Asked Questions

What is the Prusa Flash Summer Deal 2026?

Prusa's Flash Summer Deal 2026 runs through July 14, 2026 and offers 20% off the MK4S Assembled (regular $999 USD), 10% off the MK4S Kit (regular $729 USD), and reduced shipping on the CORE One+. Every order includes a free Prusament spool and the relevant Prusa Academy course (MK4S Academy with MK4S orders, CORE One+ Academy with CORE One+ orders). EU shipping on MK4S is free; US shipping is $69.99. There is no public Prusa affiliate program — purchase directly at prusa3d.com. Checked July 2, 2026.

How much is the Prusa MK4S during the Flash Summer Deal?

The MK4S Assembled normally retails at $999 USD. The Flash Summer Deal offers 20% off through July 14, 2026 — verify the exact discounted checkout price at prusa3d.com, as sale prices may vary by region or configuration. The Kit (normally $729 USD) receives a 10% discount. Both include a free Prusament spool and Prusa Academy course. US shipping is $69.99; EU shipping is free. Checked July 2, 2026.

Should I buy the Prusa MK4S or wait for a Bambu sale?

Both promotions are active now: Prusa Flash Summer Deal (through July 14) and Bambu Lab 4th Anniversary Sale (through July 15). The MK4S is an i3-style single-material printer with open-source firmware, a long parts track record, and an optional MMU3 multi-material upgrade. The Bambu A2L ($469–$569 Combo) is a multi-material-ready, cloud-connected open-frame printer. They serve different workflows. The two sale windows close within a day of each other — compare final prices at both prusa3d.com and us.store.bambulab.com before July 14 and choose based on which ecosystem fits your print workflow.

Is the Prusa CORE One+ included in the Flash Summer Deal?

Yes, but only the shipping cost is reduced — the deal announcement describes reduced (not free) shipping on the CORE One+ for US buyers. The exact US shipping rate is not published in the promotion announcement; verify the specific amount at prusa3d.com before ordering. Every CORE One+ order includes a free Prusament spool and the CORE One+ Academy course. Checked July 2, 2026.

When does the Prusa Flash Summer Deal end?

The Prusa Flash Summer Deal 2026 ends July 14, 2026. The Bambu Lab 4th Anniversary Sale ends July 15, 2026. The Elegoo Hot Days Cool Deals sale ends July 13, 2026. All three close within a two-day window — if you are evaluating any of these brands, July 14 is the hard deadline for Prusa pricing. Verify final prices at each manufacturer's site before ordering.

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