Bondtech Prusa I3 MK3S Extruder Upgrade Kit EXT-KIT-68
SKU: 20211361452

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

Sale price$135.90 Regular price$151.00
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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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      Best fluffy but firm pillows
      Size: King(Pack of 2), Size: King(Pack of 2)
      These pillows are worth every penny! They started off pretty flat but after three days they plumped up well. In addition to them being plump, they are also firm. Exactly what I was looking for. You can shake up the internal stuffing if you want them softer too. They were a bit pricey but I’m going to repurchase and replace all my home pillows with these. I do sleep hot and the cooling side is perfect to lay on. Kept me cool and comfortable. I haven’t had any neck or back pain after switching to these pillows too. Absolutely recommend these for your home. The photo shows how full the pillows are. I have four pillows in the picture plus two smaller other brands. These are definitely fluffier.
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      Paige
      Lowell, US
      ★★★★★ 5
      Great Quality
      Size: King (Pack of 2)
      Great quality and definitely worth the money. The cooling effect actually works with the pillow. Extremely comfortable, not too squishy and not too firm. To me, it feels very supportive.
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      Reviewed in the United States on June 8, 2026
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      ★★★★★ 5
      Welcome, weary traveler, to the world of OSBED Shredded Memory Foam Pillows
      Size: King (Pack of 2)
      Welcome, weary traveler, to the world of OSBED Shredded Memory Foam Pillows - where firmness meets flexibility in a delightful pillow dance of comfort and support! Picture this: a pillow as firm as a handshake from your grandma, yet as adaptable as a chameleon at a color-changing convention. With the magic of removable foam stuffing, you can sculpt these pillows to be as soft and huggable as a teddy bear, ensuring a customized snooze experience every night. The pillow cover? Ah, it's like the velvet ropes of the sleep world - luxurious, durable, and ready to cradle your head in style. It's the kind of cover that whispers "sweet dreams" as you drift off into slumberland. But wait, there's more! These pillows are cooler than the other side of your pillow, thanks to their cooling properties that rival a polar bear's favorite ice bath. Say goodbye to sweaty nights and hello to a refreshing sleep oasis. And the best part? These pillows won't cost you an arm and a leg. At a decent price, they offer a luxurious feel without the wallet-induced panic attacks. Plus, they're as shape-retentive as a yoga master holding a downward dog pose - no lumps, no bumps, just consistent comfort all night long. In a world filled with pillow pretenders, the OSBED Shredded Memory Foam Pillows stand tall as the champions of coziness, the sultans of support, and the emperors of easy adjustment. So, if you're seeking a blend of firmness, versatility, quality, coolness, affordability, and shape retention in your sleep companion, look no further than these pillows. Your neck and shoulders will thank you, and your dreams will be sweeter than ever before.
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      Reviewed in the United States on May 3, 2024
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      Size: Queen (Pack of 2), Size: Queen (Pack of 2)
      Very fluffy! Very cool! Very comfortable !
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      Matt S.
      Massapequa, US
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      Very comfortable, luxurious, and affordable.
      Size: Queen (Pack of 2)
      Great pillow. Feels soft enough for comfort while being cool and cozy. There could be more filling to make it slightly more firm but otherwise a great pillow.
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