J Head Nozzle
Release status: working
Description | J-Head Nozzle and Thermal Barrier Based on a combination of ideas from the Makerbot Mk 5 hot end, The Inline Heater Variation, some ideas from Brian Briggs, and some ideas from me.
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License | GPL
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Contents
Introduction
NOTE: All Research and Development on J-Head Hot-ends has stopped due to the availability of cheap chinese counterfeits that have been spammed throughout the online markets, don't work well, and have no support.
Suppliers
Differences Between Real J-Heads and Cheap Clones
- HotEnds.com <--- Original designer
- 3DMakerWorld.com US
- Charlie's 3D Technologies
- MakerFarm.com
- RepRap-USA
- Plastic2Print Europe
- reprapsource
- eMotion Tech reprap-france.com
- TriDPrinting.com HotEnds Seattle
- Ultibots Hot Ends
clones - removed see discussion page
Parts List
Mk I
Summary: First J-Head hot-end.
Mk II
Summary: Added a hollow set-screw to retain the PTFE liner.
Mk III
Summary: Added a heat sink in order to print PLA. To reduce weight, an aluminum nozzle is used.
Mk III-B
Summary: Added a heat sink in order to print PLA.
Mk IV
Summary: Removed the heat sink and added a series of vents to provide cooling. To reduce weight, an aluminum nozzle is used.
Mk IV-B
Summary: Removed the heat sink and added a series of vents to provide cooling.
Mk V
Summary: Reduced the size and increased the length of the melt zone. To reduce weight, an aluminum nozzle is used.
Mk V-B
Summary: Reduced the size and increased the length of the melt zone.
Mk V-BV
Summary: As the old thermistor was discontinued, the Semitec thermistor was substituted.
Mk VI-B
Not released due to cheap chinese counterfeits of J-head hot-ends. The innovation and production of new J-Head hot-ends has stopped due to chinese counterfeits that do not follow the specifications and have ruined the reputation of the product.
Mk 7-B
Not released due to cheap chinese counterfeits of J-head hot-ends. The innovation and production of new J-Head hot-ends has stopped due to chinese counterfeits that do not follow the specifications and have ruined the reputation of the product.
Mk 8
Only available through special order at http://www.hotends.com
Summary: Improved J-head with a better internal seal, axial thermistor, heater cartridge, and a fluted PEEK nozzle holder design. No kapton tape is required.
This design will not be publically released due to cheap chinese counterfeits of J-head hot-ends. The innovation and production of new J-Head hot-ends has stopped due to chinese counterfeits that do not follow the specifications and have ruined the reputation of the product.