Adapter for OpenBuilds 71mm spindle mount to hold 52mm "Chinese" spindle. This design includes an airway for wind passing through to cool the spindle body below the mount.
OpenBuilds Router/Spindle Mount
Router / Spindle Mount
OpenBuilds 71mm to 52mm Spindle Mount Adapter with Cooling Airway 2020-07-09
adapter to fit 52mm spindle to 71mm mount