4 model

Free

Sunlu S2 10mm Bowden Adapter/Wedge

Printables

Free

Yet another bowden extruder for 7mm and 10mm drive gear

Thingiverse

Free

E3D v6 Bowden X-Carriage with Sensor Holders: 10mm, 12mm, 18mm and BLTouch

Thingiverse

Free

Printrbot Simple Bowden Attachment 1.75mm filament - 4mm or 10mm Fitting

Thingiverse