Bondtech Bondtech Prusa i3 Extruder Upgrade Kits MK3S+/MK3S/MK2.5S

The Bondtech Prusa i3 Upgrade Kits bring the latest Bondtech technologies to your Prusa i3 3D printer, including Dual-Drive extruder gears, a 3:1 gear ratio for increased torque, and more precise control of filament during both extrusion and retraction. Overall, this upgrade kit will increase the print quality of your Prusa i3, making it easier to produce high-quality prints.

  • Allows for increased torque and more precise filament control
  • Custom-built for your exact Prusa i3 machine
  • Adds the benefits of a standard Bondtech extruder
Price: $110.00 (with add-ons)
Availability: In Stock
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Product No. M-6FN-6U4G
Prusa i3 Version: MK2.5S/MK3S
MK2/MK2S
MK2.5/MK3
MK2.5S/MK3S

Bring the best of Bondtech technologies to your Prusa i3 3D printer

These Bondtech upgrade kits for Prusa i3 3D printers allow anyone to bring the latest Bondtech technologies such as Dual-Drive extruder gears and a 3:1 gear ratio for increased torque and more precise control of filament during both extrusion and retraction. Overall, this upgrade kit will increase the print quality of your Prusa i3 with all the benefits of a standard Bondtech extruder, but in a custom package purpose-built for your exact machine. If you are operating an older Prusa i3 and want to get a tune-up for increased performance, this is the place to be.

Waste-not by reusing the existing fan and filament sensor from the stock machine

Which Bondtech Prusa i3 Upgrade kit is right for me?

One of the best aspects of the Prusa i3 is the iterative design mentality that leads to a constantly evolving and improving machine. As many printer manufacturers have done, Prusa now incorporates Bondtech drive gears in their stock 3D printers, taking advantage of the Dual-Drive benefits like increased torque and grip due to holding filament on both sides while extruding and retracting. For older machines such as the MK2 and MK2S that did not originally ship with Bondtech gears, the upgrade kit includes those. No matter which upgrade kit you need, they all add the increased torque and precision of a 3:1 gear ratio, similar to the BMG design. This increased torque helps drive filament into and retract out of the hotend and the increased gearing translates stepper movement into smaller rotations for more precise control of extrusion and retraction.

Upgrade your X-Carriage with professional SLS 3D printed components

For the MK2.5S/MK3S upgrade kit, it is necessary to replace the X-carriage assembly entirely. An SLS printed version for the MK3S with the required hardware is available here at MatterHackers or you can download the STL and FFF 3D print your own. If you have an enclosure around your i3 and will regularly be printing with higher temperature materials like nylon, the SLS mount is preferred as it has a maximum ambient air temperature of 100°C. If you have an open-air setup then printing your own mount is possible and files are available.

Linked below are STL downloads to print your own for the MK2.5S / MK3S

Why Are Items on Clearance?

At MatterHackers, to bring you new and exciting products, we occasionally shift some of our quality stock to the Clearance section.

Reasons for Clearance Items:
  • New Product Versions: When manufacturers release updated versions of printers, CNC machines, filament, etc., the older versions typically go to Clearance.
  • Overstock: Items we have in excess are moved to Clearance to free up warehouse space.
  • Discontinuation: Discontinued product lines often end up in Clearance to expedite the sale of remaining stock.
  • Packaging Changes: When packaging updates occur, we shift the older packaged items to Clearance.
Clearance Does NOT Imply:
  • Poor Quality: Clearance items meet our rigorous quality standards and often brand new, unopened products.
  • Limited Support: You'll receive our excellent customer service for Clearance items. Note, all Clearance purchases are Final Sale and not covered by the MatterHackers Return Policy.

Note, all Clearance purchases are Final Sale and not covered by the MatterHackers Return Policy.

Questions View All Responses

Will this work with a MK3s+

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will this work on the MK3S+ also?

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I'm looking to buy the bondtech extruder w/mosquito magnum hot-end. There seem to be more parts involved that are spread out and confusing. Can you tell me exactly what I need in one message or a list ? thanks

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Does this work with an original Mk3? All I see are questions regarding the mk3s

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I have an upgraded Mk3 to MK3S which kit do I need?

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Nothing but problems after installing this on Mk3s+

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What slicer setting changes are needed, if any? Does installing this upgrade mean I need to reslice all of my models?

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Is this for the stock MK3S hotend only? Or will it work with the Mosquito? Thank you.

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Is this the latest version, with new white plastic main gear and integrated drive gear for lower run-out?

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Would this work with the Sovol SV06 Plus, as it looks similar to the Prusa MKS printers?

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Does this work with the i3 Mega S? Which parts would we need?

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Can i put this on my ender 3 pro?

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What the max printing temperature?

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Is this an all metal hot end? Can it be put on a Prusa MK3S for printing Nylon?

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Does this hobb gear work on this extruder? https://www.matterhackers.com/store/l/e3d-titan-extruder-hobb-hardened-steel/sk/MXAPJAUJ

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I have the Prusa i3 MK2 and was interested in upgrading my extruder with the Bondtech Prusa i3 upgrade kit. Do I also need to purchase the X carriage kit or will it work with my current Prusa X carriage? Also, the description mentions that you need to purchase a new 40x40x10mm cooling fan. Do you sell the correct fan for this upgrade?

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I would like to upgrade my prussa MK3S with the Bondtech extruder. What else do I need to buy to get it all to work. Thermister, Hot End (for precision, dont care about speed)? What hot end is most compatible with cheap plastic filaments?

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Will this work with the MMU on the MKS version?

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