Update: I created another comprehensive attachment that works better for larger phones and is more reliable and stable
I didn't want to remove the case of my iPhone 14 pro whenever I wanted to use the backbone controller. So I bought this lightning extension adapter that fits perfectly on the backbone controller. However it still felt bit untidy and risky of it snapping and was flimsy fit on iPhone.
I amateur designed this part that fits perfectly around that adapter and support iPhone case firmly. It's not a perfect looking design but I couldn't find any CAD design of the controller for reference, so just did some trial and error to find the perfect fit that works.
It fits exactly like the Backbone One Adapter
There are two options to download and print
Notes:
The author marked this model as their own original creation.