QR Extruder - Bondtech

The Bondtech QR uses a Nema17 stepper motor with an integrated 5:1 ratio planetary gearbox along with precision CNC machined hardened steel drive gears to give you a compact power plant for all your applications. Whether you need high-resolution printing with small nozzles or high-flow printing with large nozzles, the optimized gear ratio combined with industry-leading drive gears provides unprecedented thrust power and lightning-fast retractions in a lightweight, compact package.

Bondtech Dual-Drive
Exclusive Dual-Drive technology delivers uninterrupted material flow without fear of slippage in even the most demanding conditions.
Multi-material capability
The QR extruder feeds all material with high reliability, from slippery nylons and soft TPU / TPE filaments to highly rigid and sometimes brittle high-strength carbon-filled materials. The extruder is designed for 1.75 or 2.85 / 3.00 mm filaments, but has been tested to ensure filament performance with a large diffusion diameter for high reliability regardless of the tolerance of the filament used. The filament path is fully guided throughout the extruder housing and the housing maintains tight tolerances for the drive gears, mitigating the chances of filament jamming when the hotend experiences increased back pressure or highly flexible filaments are used.

Adjustable Tension
The screw tensioner allows the user to fine-tune the pressure exerted by the drive gears on the filament. This gives you the ability to adjust according to your preference and optimize for the type of material you are using.

Quick-Release
In order to make material changes in a snap, simply activate the Quick-Release lever to release tension and pull the material to be changed out of the extruder, keep it activated and insert the new material.

Feeding Direction
The QR feeds the material with the same force in both directions, so it's flexible when it comes to integrating it into your application.

Multi-application design
This extruder can be used in Bowden or Direct configurations, giving you the flexibility to choose what works best for your application. It also features an integrated hotend retention method compatible with E3D-V6 hotends or others that use the Groove Mount standard. Mounting your hotend is simple, secure and wobble-free with just three bolts.
Each unit is assembled, tested and verified for optimal performance.
Recommended motor current setting: 1.2 A.
Step E setting: 476.5 (1.75 mm) (492.45 2.85 mm) increments/mm