One of the things that struck me about the new bayonet system (apart from its great!) was that (unless I've missed it) there is no cap for the bayonet once you have it attached to your housing. I don't tend to keep my WWL attached, but once removed it leaves the front element of the port exposed.
8 or 9 trails later (might of been more. Lost count)
I made up a 2 piece cap for the bayonet system.
Reason for it being 2 piece was to get the front with the logo, so need to glue it. It does appear my printer isn't great at logos, so will probably go with something plainer next time.
Here is the finished project:
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