Skip to Content

How - To

Video tutorials about the Starlex DHB Hot-end Eco-system.

We will aim to add more videos to help the community very soon.



MCH Heaters & Wires...

MCH = Metal Ceramic Heater

Overview:

The MCH ceramic heating element is a type of ceramic heater that involves applying a paste made of meta tungsten or molybdenum manganese onto a ceramic casting body. This is followed by hot pressing and co-firing at 1600°C in a hydrogen atmosphere, resulting in the simultaneous sintering of ceramic and metal.

This advanced heating element is renowned for its high efficiency, eco-friendliness, and energy conservation. It primarily serves as a replacement for commonly used alloy wire heating elements, PTC heating elements and components.

Key Features:

1. Energy-efficient with high thermal efficiency, consuming 20-30% less power per unit heat than PTC.

2. Safe, non-charged surface with excellent insulation properties, capable of withstanding a 4500V/1S withstand voltage test without breakdown or leakage current exceeding 0.5mA.

3. Absence of impulse peak current, power attenuation, open flames, ensuring quick and secure heating.

4. Excellent thermal uniformity, high power density, and extended service life.

MCH Heaters

Starlex DHB Hot-end Assembly

Easy step by step of the Dual Heat Block assembly from scratch.

We generally do not use thermal past. You can if you wish to, but never in the Nozzle Groove. 

For an even more secure hold, feel free to bend the metal clip slightly to enhance its grip.

To achieve the best thermal contact efficiency with the nozzle, it is vital to maintain a spring effect on both Heat Block Clamps.

Starlex DHB Hot-end

Starlex DHB mount on Prusa MK3S+

Easy step by step mount of the Starlex DHB 22.5 hot-end on the Prusa MK3S+

We use the Drop In Replacement Hot-end with the modified E3D V6 Heat Sink to fit the exact same nozzle height as the original V6 Heat Sink.

This upgrade offers a significant advantage with an increased melt zone length, expanding from 12.5mm to an impressive 22.5mm. This enhancement results in a flow rate of 22.5mm3/s, comparable to that of the Volcano nozzle.

Firmware update:

From version 3.12, there is a new safety implemented, Thermal Model (TM) Having different heaters than the original ones or the Revo MCH will call a "Thermal Anomaly" alarm.

It is possible to remove this "Thermal Model" using Pronterface connected to the switched on printer. Enter M310 S0, then M500 to store the setting.

This work around option is made for third party heaters mounted on Prusa 3D Printers with firmware versions above 3.11

Links:

https://help.prusa3d.com/downloads/mk3/firmware

https://github.com/prusa3d/Prusa-Firmware/releases/tag/v3.12.1

"Connect to your Printer via Pronterface and send G-code M310 S0 followed by M500 - then you can continue using the firmware with third-party parts."

https://www.pronterface.com/

Prusa configurator

Starlex DHB Mount on Sprite S1 Extruder from Creality (Ender3's)

We have modified an Ender3_V2 with a Sprite S1 Extruder.

This will work on all Creality having the S1 Extruder.

Enjoy the benefit of a long melt zone, 22.5mm within the same nozzle height as a Drop In Replacement.

Erratum, original screws are M3 x 25 & M3 x 30mm (not M3x20, M3x22)

Creality configurator