I own a Laguna 18/47 and a Jet Mini. There are not a lot of the 18/47's out there.
I recently went on a quest to add vacuum chucking to the Laguna. I was very fortunate to learn of two gentlemen Steve Schlumpf and Tom Steyer.
Steve supplied me with his excellent vacuum chuck tutorial. I adapted it to allow it to run my Jet Mini as well. Steve I owe you. Steve used a rotary adapter from Tom Steyer in his system. I contacted Tom and after a couple of conversations and few pictures sent to him I was the proud owner of a high quality rotary adapter for a Laguna 18/47. I am running the Jet off a Holdfast rotary adapter. But I am going to have Tom build me one for that as well, I had purchased the Holdfast before I knew of Tom's. As with Steve I owe Tom he made this a simple task.
I have added four pictures of the system and the adapter