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This J-head V2.0 hotend is a combination of ideas from other nozzle designs combined with a goal to reduce the number of custom machined parts to a bare minimum.
The J-Head V2.0 has been proven to print reliably with both ABS and PLA. PLA will require a small fan to provide air-flow through the cooling vents milled in the sides of the nozzle holder.
This hot-end easily interfaces with the most popular RepRap extruders, including Wade's Extuder, Greg Frost's Hinged Accessible Extruder, etc.
High-quality PEEK heat-insulated pipe.
Duralumin alloy nozzle.
Small size, light weight.
The PTFE is not stressed nor used to provide support. This reduces a point of failure that is part of other designs.
The entrance is located at the PEEK tube inner side, which is more preferable for the implementation of the short-range extruders.
4 optional nozzle size: 0.3mm, 0.35mm, 0.4mm, 0.5mm
2 optional filament size: 1.75mm, 3.00mm
1 x Peek short-distance J-Head V2.0 Hot End . (Please Note: Choose "Nozzle Size" and "filament size" you wanna)
More information please refer to the wiki page