Reply to thread

I had the same problem / gripe.  I posted my comments on a tool supplier web site asking what we could do to get the manufacturers to adopt 3 or 4 "standard" size dust ports.  In the end, I bought a 3D printer and now make my own for each non standard machine.  I use the FreeCad 3D software as it can easily make a transition duct and it is free.  You don't want a stepped duct as these will greatly reduce the amount of vacuum reading your machine (I was an aircraft engineer for 40 years so I'm familiar with airflow principles).  I don't think we will be able to get the manufacturers to adopt standard sizes, at least not in my lifetime.  And we really don't want Health and Safety to get involved!