Presta Schrader Valve adapter

thingiverse

Another custom Presta-Schrader valve adapter is created. Several models exist on Thingiverse, but none perfectly match different Presta valves due to varying body thread usage. To address these issues, several design challenges were met: - The internal thread of the Presta adapter must match the cap thread of the valve. - A suitable adapter for multiple types of Presta valves is required (as shown in photos). - The Schrader valve was adapted using a compressor air inflator. This model works flawlessly. The Fusion 360 file is included. On September 3, 2019, an updated version was released to accommodate an O-ring. The Presta thread diameter was increased to 7mm and the height to 2.1mm to improve sealing when using a compressor air inflator. Users can modify (Fusion 360 file) to suit their chosen O-ring dimensions.