How To Properly Tighten A Bondtech BiMetal CHT Nozzle

Created by DREMC STORE, Modified on Fri, 13 Mar at 1:56 PM by DREMC STORE

Properly tightening a Bondtech BiMetal CHT nozzle requires precision, these nozzles combine a soft copper body for superior thermal performance with hardened steel inserts for abrasion resistance. This unique construction makes them more susceptible to damage from over tightening. Bondtech's own testing reveals that failure torque varies by nozzle type, ranging from approximately 1.5 Nm for MK8 variants to 2.5 Nm for RepRap M6 versions . The recommended installation procedure is simple but critical: always heat your hotend to 280°C (minimum 250°C) before tightening or removing , and apply a torque of just 0.5–1.0 Nm (0.5 Nm recommended). For precise control, Bondtech offers a free 3D-printable torque wrench designed specifically for these nozzles.

TABLE OF CONTENTS

Printable Torque Wrench
SLS Printed by Bondtech:

Note: Use at most 1.0 Nm torque. Recommended Torque is 0.5 Nm.

Tightening a BiMetal nozzle can be a risky task, especially when using an uncalibrated or too-strong torque wrench. Standard wrenches may break the nozzle during tightening, leaving you with a costly and frustrating replacement. At Bondtech, they want to help you have an exciting 3D printing experience. That’s why Bondtech have devised and implemented a plan to help customers avoid BiMetal nozzle breakages!

Photo Source: https://www.bondtech.se/2023/01/27/how-to-properly-tighten-a-bimetal-cht-nozzle/

Printable Torque Wrench

Note:

The HANDLE of the Torque Wrench, formed by a lid and a knob, can be printed in both PLA or PETG.

The ROTORS have different models depending on the material to use.

Download: https://www.bondtech.se/downloads/BondtechBiMetalTorqueWrench/V1_Bondtech_BiMetal_Torque_wrench.zip

SLS Printed by Bondtech:

Buy SLS PA12 Printed Torque Wrench Handle (https://store.dremc.com.au/products/torque-wrench-handle-for-bimetal-cht-nozzles)