BondTech LGX FF for Prusa MK3S

Flexible filament extruder upgrade for the standard extruder

  • For flexible and soft materials
  • Easy installation
  • Better filament grip
  • Short filament path
  • £256.10

Price shown includes 20% VAT. Excludes delivery costs

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Item no.: BTE-EXT-KIT-80, Content: 1 pc

EAN: 7350011413713

  • For flexible and soft materials
  • Easy installation
  • Better filament grip
  • Short filament path

Product information & technical details

Item no.: BTE-EXT-KIT-80
Manufacturer No.: EXT-KIT-80
Manufacturers: BondTech
Content: 1 pc
Product types: 3D Drucker Upgrades, Extruder
Compatible with 3D Printers : Original Prusa i3 MK3S
Filament Diameter: 1,75 mm


This LGX-based upgrade kit is an easy-to-install replacement for the stock extruder on the Prusa Mk3S. It uses a Copperhead Hot Block and a Copperhead LGX Heat Break from Slice Engineering.

Complete flexibility

The setup is compatible with all 3D printing filaments and, thanks to its record-breaking short filament path of less than 22 mm, it is particularly suitable for processing flexible and soft materials.

Easy installation

Very intuitive and easy to install upgrade kit where the extruder faces the X carriage and reduces the distance between the nozzle and the x-axis.

Features of a BondTech extruder

  • Larger drive wheels for better filament grip
  • Filament preload lever for quick filament changes
  • Multifunctional interface socket for quick tool and application exchange
  • Drive wheel maintenance window for easy cleaning and maintenance
  • Compact, light and symmetrical design for greater performance and compatibility
  • Mounting hole pattern for easy and uncomplicated setup
  • 3D-printed nylon housing for maximum strength, precision and temperature resistance

The picture shows parts printed with FDM technology. However, they are supplied in PA12 and manufactured through an industrial additive manufacturing process for high quality and temperature resistance.

Spare parts

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Did you know?

The aircraft manufacturer Boeing has manufactured parts for the fighter aircraft F / A-18 using 3D printing.