Prints very well with tool side on the build plate.
The author remixed this model.
The dust port on my old 20" planer is a massive 128mm. If you have one of these big dust ports on your equipment, I hope this saves you some time. I couldn't figure out how to use FreeCAD to scale the original parametric design so I did this in Fusion360. Props to creator Robert! I love this design and it works like a dream.
Original model: https://www.printables.com/model/333517-magnetic-dust-collection-connectors