I needed a breakout for a mouse using the Serial port and thought I'd make a cable from scratch...
here is a 3D printed version using standard Ribbon cable and DB9 connector.
Note: Pin 9 is empty as the Jr does not support the RING Detect line.... All others are properly routed from the Back connector to the proper Pin assignment..
The fit is great, it has a nice PRESS in type hold as does the original, this is due to the 3D printing of LAYERS that grabs as it it inserted...
