The Dragon Tongue - can be screwed to the Trianglelab Dragon Hotend V2.0 and used in the place of a standard E3D prusa V6.

The adapter allowsone handed nozzle changing due to the Y-shaped "tongue" that fits the extruder cover shape and stops the hot end rotating.

The adapter is designed to work with the bear extruder https://guides.bear-lab.com/c/95jghwzvw9l46s3g and inspired by the design for a hard mount link from @SugaryPlumbs https://www.prusaprinters.org/prints/48067-mk3s-bear-rigid-mount-for-tl-dragon-hotend

The adapter uses the screws that are supplied with hot end by Trianglelab.

Development:

current version takes a PTFE tube but not the cuff and clip that holds the tube.
Sources used:

3D models for the extruder
https://github.com/gregsaun/bear\_extruder\_and\_x\_axis

• 3D model of dragon hot end
  https://grabcad.com/library/trianglelab-dragon-hotend-based-on-slice-engineering-mosquito-1
  The hotend used is the standard flow version: https://www.aliexpress.com/item/4000404170721.html?spm=a2g0s.9042311.0.0.5ab34c4da2aZI5

Print instructions

Category: 3D Printer Extruders Summary

The Dragon Tongue - can be screwed to the Trianglelab Dragon Hotend V2.0 and used in the place of a standard E3D prusa V6.

The adapter allowsone handed nozzle changing due to the Y-shaped "tongue" that fits the extruder cover shape and stops the hot end rotating.

The adapter is designed to work with the bear extruder https://guides.bear-lab.com/c/95jghwzvw9l46s3g and inspired by the design for a hard mount link from @SugaryPlumbs https://www.prusaprinters.org/prints/48067-mk3s-bear-rigid-mount-for-tl-dragon-hotend

The adapter uses the screws that are supplied with hot end by Trianglelab.

Development:

current version takes a PTFE tube but not the cuff and clip that holds the tube.
Sources used:

3D models for the extruder
https://github.com/gregsaun/bear\_extruder\_and\_x\_axis

3D model of dragon hot end
https://grabcad.com/library/trianglelab-dragon-hotend-based-on-slice-engineering-mosquito-1
The hotend used is the standard flow version: https://www.aliexpress.com/item/4000404170721.html?spm=a2g0s.9042311.0.0.5ab34c4da2aZI5

Print Settings

Printer Brand:

Prusa

Printer:

Prusa Clone

**Rafts:** No

Supports:

No

**Resolution:** 0.2

Infill:

20%

**Filament:** [ Prusa PETG ](http://www.amazon.com/s?url=search-alias&field-keywords=Prusa++PETG&tag=tvad0304-20) BLACK

Notes:

I used 5 perimeters which helped print the overhang of the upper adapter ring

How I Designed This ===================