I have great news for everyone! First MK3s are already shipped to those who ordered in the very first hours after the release (The rest will follow according to schedule everyone has in theirs eshop accounts so there is no need to check it with our support).

However, we’ve encountered a problem with the first batch of the Powder Coated PEI spring steel sheets, where the first batch arrived in poor quality and the PEI was peeling off the sheets. We have to analyze what has happened as it took us by surprise and this will take some time to get back on schedule. A new batch is expected to arrive in late January within a reasonable time frame. Manufacturing at scale can always surprise you, we were very confident with this as we are manufacturing and testing the powder coated PEI sheets on our farm for over a year now.

As we know you are eagerly awaiting your MK3 we started a production of alternative spring steel sheets with the very same and great PEI which is on the MK2/S. (We actually planned to manufacture it later as an option.) Back when we announced the MK3, the textured print surface caused mixed feelings in many users and roughly 30% of users prefer the velvet finish from the PEI sheets they are used to from MK2 anyway.

The steel sheet has PEI on both sides doubling the lifespan and denting/scratching is improbable. Remember, you can release the parts by slightly flexing the plate. And of course, it works on the magnetic bed same as the powder coated version.

We asked first 100 customers who ordered if they are fine with the substitute + $10 voucher and we got very positive feedback. Hence we decided to swap it automatically by default until we have the powder coated version in stock. I know it might be annoying for some and if you prefer to wait a bit longer, email us your order number to [email protected].

I just can’t imagine delaying the shipments as we were ready with all the parts for the November launch.

You can check out all the goodies for the MK3 as they are already online.

Handbook – www.prusa3d.com/downloads/manual/prusa3d_manual_mk3_en.pdf

Build manual – manual.prusa3d.com/c/Original_Prusa_i3_MK3_kit_assembly


Drivers and firmware (FW is beta version) – www.prusa3d.com/drivers

Firmware will follow shortly.

Different available surfaces pro MK52 magnetic bed – smooth PEI sheet, glossy powder-coated and textured powder-coated.

We plan to offer three version of the steel sheet:

Spring steel sheet with smooth double-sided PEI sheet – 29.99 USD (excl. VAT)

Double-sided glossy powder-coated spring steel sheet – 24.99 USD (excl. VAT)

Double-sided textured powder-coated spring steel sheet – 24.99 USD (excl. VAT)

Spring steel sheet with smooth double-sided PEI sheet in action

The sheets are considered consumables but we are offering the $10 voucher for textured powder coated steel sheet to everyone who receives the printer with smooth PEI “sticker” sheet and free shipping with it. We want you guys to be happy. We are also working on ways to provide special affordable shipping for sheets on every continent.

Thank you and I cannot wait to see the first MK3s printing in the wild 🙂



10 thoughts on “MK3 is shipping!

  1. Hi Jo,

    great to see the explanation of the SheetGate delay 🙂

    i think the free shipping point was the major remark i have seen in the different media.

    still great to see shipping is getting up to steam, can’t wait for the BEL to ring.
    the post men(or girl) is here.

    keep up the research on 3d printing tech.

    greetz from the Netherlands Ron

    • Hoi Ron,
      Ook ik heb een MK3 I3 besteld maar ben totaal nieuw met deze materie, het is dus mijn 1e 3D printer en weet niet of alles goed zal gaan.
      Ik heb wel de handleiding met google translate naar Nederlands vertaald uiteraard niet helemaal zuiver, maar begrijpelijk.
      Als jij wel enige ervaring hebt zou ik dan als het nodig is jou af en toe met een paar vragen mogen lastig vallen?

      Groet, Willem.

  2. Great news! Thanks. Can’t wait to start printing.
    Just an Idea: I think it would be great to have a build plate with one side glossy PEI and one side textured PEI? So you can choose what ever you want if you print.

  3. Hello the real I do not understand how it will arrive and if it does not come as they say they would have me, that I would do a discount or if you have a sheet that works they send it to me for free that would be a good solution

  4. Hi !
    I have a Mk2 and am very satisfied, works great.
    But, like everybody else, want more space to write.
    Since your new printer does not develop on a larger print area, I’ve purchased a CR-10S5 and it works well after some improvements. Recommends it.
    Would love to buy from you, but you seem to sneak into a small print area.
    I think you’re a dead fish in the ocean if you do not offer a larger print space.
    Perhaps, maybe not, my next printer will be a pruse in the future, but only if you increase the writing space.
    Best regards, Björn Axelson

  5. is there any difference in the height between the 3 types of steel sheet? or any differences in configuration of the nozzle Z adjustment when switching between then for printing?

  6. Congratulations Joe to you and your team. You have to be excited. I’m looking forward to my MK3… and so are my customers :>)

  7. Thanks for the update. So very glad to see they are shipping and you have released the assembly manual.

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