I’ve purchased the MagLock 3D printing bundle for makers and have printed the hose side of things (the MagRing and MagRound).
Is there a mostly generic tool side of things? Or is this something where nobody actually makes dust ports in any reliable size and we all just get to play with calipers?
Not sure if this answers your question, but I have generally used a coupler for my tool side connections.
I have since attached ~3’ segments of hose to my tools, but my jointer still uses a coupler.
If your plan involves 4" connections I would recommend this design from steve dash
the fitting is what came with my jointer. I just used the coupler from amazon linked above to attach a mag round/ring… then on my hose i have the design from steven dash also linked above.
It makes it necessary because my jointer is about 18 feet away and I have a 20 ft hose. Its on an island so its unlikely to get dedicated ducting