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  • Metal short-distance J-head with cable for bowden extruder
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Metal short-distance J-head with cable for bowden extruder


Shipping Weight:150g

Quantity in stock:6049


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The Bowden principle
The Bowden cable lets you reduce the moving mass of the extruder and thus allowing faster controlled motion, less shaking of your machine, less energy use and importantly: faster printing! Normally the mechanism that drives the filament into the hot end (where it melts) is directly on top of the extruder. This creates problems of balance and oscillations with faster motion which you can see in your printing results and hear and feel when your machine is shaking.If the filament drive mechanism is placed on a non-moving part of the 3D printer, it can be pushed into a tube. PTFE (Teflon) is useful because it is slippery: it has little friction with the plastic.This limits wear and loss of energy. The tube's other end is connected to the extruder's hot-end.The concept of using a Bowden cable as guide was suggested and pioneered by Ed Sells.
The main advantages
All metal enables working with Polycarbonate up to 300 degrees Celsius and with future materials that require higher working temperatures beyond those supported by plastic extruders and hot end.Tested with PLA, ABS, polycarbonate, nylon and PVA.


It is assembled with Cartridge Wire and 100K NTC thermistor.

To make your printing easier,a 30x30mm 12VDC cooler fan is assembled for heat dissipation.

The inner diameter of the bowden feed mouth is 4mm to print with 1.75mm filament,and 6mm to print with 3mm filament.


Package list

1 x assembled All metal short-distance J-head hotend for bowden extruder

More information please refer to the wiki page
Your improvement of the documents on wiki page is much appreciated
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  • James McElhany | 08/14/2018

    Can this replace the hotend on the A30?

    • Jocelin Jia | 08/14/2018

      you need long distance ,thanks

  • Javier Gonzalez | 01/17/2017

    Hi, does this come with a teflon tube inside of the throat? or its all metal

    • rita xiang | 01/17/2017

      Hello Javier, yesm this hotend comes with teflon tube inside.

  • Özgür Çimen | 11/16/2016

    hi is this compatible for mk8 ?

    • rita xiang | 11/18/2016

      no, this hotend is not compatible with mk8 extruder.

  • Alberto Da Silva Lopez | 08/24/2016

    Has that I shape of thermistor must be configured in marlin, the 1, 11 or 13?

    • William Kwok | 08/24/2016

      Hi,it's 1 for it.

  • Jacques van Bosch | 04/21/2014

    I want to know if the hole on the top of the extruder diameter is 1.75mm or 4mm. Also the teflon tube needed for the bowden feed, how far into the extruder those the tube go, or how does it connect to the extruder. Can this extruder be used as a normal one( mounted to a braked with a motor that feeds the fillement) or only as a bowden feeder with the motor away from the extruder feeding filament through a ptft tube to the unit. How does the ptft tube connect to the unit?

    • Jet Lee | 04/22/2014 | GET Staff

      thanks for your explanation, the product has both 1.75 and 3mm filament diameter it's optional, since this is a whole metal j-head so there is not teflon tube needed, you can use is as a normal one mounted with a motor to feed the filmament.

  • Jacques van Bosch | 04/20/2014

    Were is the bowden feed mouth located

    • Jet Lee | 04/21/2014 | GET Staff

      Hi Jacques, I don't quite understand what do you mean, could you please make it more clear?