SKU: 20211361452

Bondtech Prusa I3 MK3S Extruder Upgrade Kit EXT-KIT-68

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Description

Bondtech Prusa I3 MK3S Extruder Upgrade Kit EXT-KIT-68Looking for a Bondtech MK3S Extruder Upgrade Kit in Australia? This is the latest generation Bondtech upgrade for the popular Prusa I3 MK3S, with an optimized design achieved with the help of the community. This kit contains the necessary parts to convert your current extruder to our own popular design based upon our BMG (Bondtech Mini Geared) extruder with 3: 1 gearing ratio for better precision and resolution together with optimized geometry for the

Looking for a Bondtech MK3S Extruder Upgrade Kit in Australia?

This is the latest generation Bondtech upgrade for the popular Prusa I3 MK3S, with an optimized design achieved with the help of the community.

This kit contains the necessary parts to convert your current extruder to our own popular design based upon our BMG (Bondtech Mini Geared) extruder with 3:1 gearing ratio for better precision and resolution together with optimized geometry for the heatsink cooling and professional SLS 3D printed housing.
It is also compatible with the MK2.5S model.

LIGHTWEIGHT BMG (BONDTECH MINI GEARED)

With this version we also lower the moving weight to reduce ghosting and vibrations or to allow increasing the printing speed. 15% of weight saving was achieved.

PRODUCT MAIN FEATURES

This extruder upgrade kit is for the Prusa i3 MK3S, or other Prusa i3 models upgraded to MK3S.
These are its main features:

  • Adapted to fit Prusa’s new filament sensor;
  • Includes one Bondtech’s BMG extruder with 3:1 gearing ratio;
  • Optimized geometry for heat-sink cooling;
  • Less moving weight to reduce vibration and ghosting;
  • Professional SLS 3D printed housing.

    ADDRESSING 3D PRINTING ISSUES

    The enhanced housing design improves cooling and decreases heat creeping issues that all metal hotends have when printing with PLA. This small enhancement will avoid many clogs.
    The increased push force will drastically reduce slipping, shredding and deformation of the filament avoiding most of the common filament 3D printing issues that start with under and over extrusion.

    UPDATING THE FIRMWARE

    To use this upgrade in the MK3S, the E-steps needs to be updated to 830, as it uses 32-bit micro-stepping. Use this file instead.

    COMMUNITY INVOLVEMENT

    This is a co-development work with awesome guys in the Prusa Community like Chris Warkocki, Grégorie Saunier (Bear Upgrades), Olof Ogland, Erik Bjorgan, Josh Jones, Kyle Wiehe, Marc Evertz, Matt Harrison, Ocie Ward, Sando Bendig, Vecko Kojchevski (Vecko Extruder), Steven Mölby, and Yuri Delia that have provided excellent feedback and suggestions of how to develop the “perfect” extruder setup for the Prusa series printer. A lot of work has been put in this project and we tried to listen to all the inputs in order to find a solution that can be the best fit to the Prusa I3 MK3S.

     

    STEPPER MOTOR

    Lightweight 25 mm pancake stepper with 18 N/m torque.
    Max Input Current : 0.8A
    Max chamber working temperature: 80℃

    Weight Reduction:
    343,2g of parts coming out and 291,5g of parts coming in. A 51g (15%) weight saving.

    CONTENTS OF THE  X-Carriage KIT includes:

    • X-Carriage Front
    • X-Carriage Rear
    • 5x M3x10 Screws
    • 5x M3 square nut
    • 1x M3 nut

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      Shipping Notes
      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
      1. Standard Shipping : 3-10 business days
      • If time is of the essence, please consider selecting expedited delivery for faster service.
      Exchange/Return Notes
      • We offer a 30-day return/exchange service after receiving.
      • Final sale items are not eligible for returns or exchanges.
      • To process your return/exchange, please contact us at [email protected]
      • Please click here for more details>>> Return & Exchange Policy
      SKU: 20211361452

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      4.5 ★★★★★
      Based on 20 reviews
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      J
      Jimmy R. Reagan
      Phoenix, US
      ★★★★★ 5
      Great, New Commentary!
      Format: Hardcover
      This commentary by Robert Yarbrough will become, I predict, a top-rated volume on the Pastoral Epistles. These epistles are ideal for the style of commentary we find in the Pillar New Testament Commentary (PNTC) series. As respected and valuable as the NICNT volumes by the same publisher are, these Pillar volumes are simply more valuable. They have a better center of focus, are more consistently conservative, and have more value for pastors without sacrificing scholarship. This volume succeeds in reaching that standard too. As you might have guessed, the editorship of D. A. Carson likely keeps this series moored to that lofty perch. BTW, don’t miss the editor’s preface where Carson fawns over Yarbrough’s work here. I was in love with this commentary within a few pages of its fine Introduction. So many commentators lose their way in the Pastoral Epistles. I have long suspected that it has far more to do with the authors dislike of what these epistles say rather than any actual problem found within them. Yarbrough is not sucked into the irrational fear of using the term “pastoral epistles” as so many are today either. It’s a breath of fresh air. He opens the Introduction with eight theses on pastoral heritage in these epistles. To my mind, that was a great way to present introductory issues. Next, he does a section each on Father, Son, and Spirit respectively in the Pastoral Epistles (PE). He was particularly perceptive in discussing Paul as a working pastor, even dispensing some silly critical theories along the way. He then tackles in turn geography, people, and key terms. He ends with a section on authorship and other usual introductory matters and masterfully reaches conservative conclusions. The commentary itself was even better! The phrase “real help” comes to mind. He showed off his skill, for example, in the perpetual battlefield of Titus 2. He gently yet surefootedly takes us where that disliked passage goes. He’s kind to dissenters, careful in scholarship, but not afraid to reach a conclusion. I don’t know about you, but that’s how I like my commentaries. 5 stars all the way!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on October 11, 2018
      K
      Verified Purchase
      Kathya1010
      Dallas, US
      ★★★★★ 4
      A Thorough Commentary that Needs Less Neutrality
      Format: Kindle
      Dr. Yarbrough has addressed the meaning of the Pastoral Epistles with the excellence we have have come to expect from him. However, sometimes he seems reluctant to take a stand on some controversial issues (other than on Pauline authorship and matters of basic Christian orthodoxy, to both of which he is correctly firmly committed). When several possibilities of meaning are possible, for example, it would be helpful to know which hypothesis he favors, and why. While occasionally he does state a definitive opinion, more often he does not, perhaps in a laudable but somewhat overdone effort to avoid controversy with fellow theologians. However, when one reads a 1000+ page commentary written at a scholarly level, one expects the author to give his or her expert opinion on such matters—indeed, it is a major reason that one purchases and studies a commentary. To conclude on a more positive note, Dr. Yarbrough’s observations on Greek word usage, including numerous Old Testament passages from the Septuagint, the Apostolic Fathers and apocryphal works, were very helpful in aiding the reader in understanding fine shades of meaning. His pastoral observations and deductions based on the text are simply excellent. His discussions of the strengths and weaknesses commonly encountered in Christian leaders in Western countries versus those observed in leaders from other nations were fascinating and edifying, not to mention occasionally convicting (in a good way)—even for readers who aren’t pastors, like me.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on November 25, 2025
      N
      Verified Purchase
      Nicholas Quient
      Battle Creek, US
      ★★★★★ 1
      Unimpressive
      Format: Hardcover
      Concerning various controversial questions of like Pauline authorship and women in ministry, Yarbrough's commentary is lackluster, polemical, and altogether dismissive of large swaths of evangelical scholarship that run counter to his claims. There are better commentaries from an evangelical perspective (I. Howard Marshall, Philip Towner) that seriously address such questions without resorting to hand-waving. Overall, an unimpressive and polemical work that is superseded by better words.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on September 10, 2019
      K
      Verified Purchase
      Kailey Goodman
      San Leandro, US
      ★★★★★ 5
      Great for NP school
      Format: Paperback
      This is very informative and easy to read! No fluff but just the nitty gritty of what you need to know
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 13, 2025
      R
      Verified Purchase
      Ryan Michael Skinner
      Fort Morgan, US
      ★★★★★ 5
      Good
      Format: Paperback
      Good
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on August 4, 2025

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