Changed the adapter to fit one of these super awesome threaded inserts I have just discovered. A super efficient way of connecting printed parts together, or create some tripod adapters.
https://www.ruthex.de/collections/gewindeeinsatze/products/ruthex-gewindeeinsatz-1-4-kameragewinde-20-stuck-rx-1-4-20x12-7-messing-gewindebuchsen-fur-3d-druck-1
The author remixed this model.