Dust extraction adaptors - 3D printed

The Titan planer thicknesser comes with a 100mm dust extractor hose port. My shop vac has a 35mm nozzle. Sounds like a job for a 3D printer?

This is a pretty commonplace requirement and while I could simply by something from Screwfix or Amazon, this needs to be made in Fusion and on the 3D printer.

I found a parametric model on Thingiverse that should do the trick:

It's created from 4 sketches, each a circle representing the start and finish diameter of the inlet and exhaust cones. The shape is then formed by lofting, then shelling.

Here's the adaptor for the planer thicknesser:

The parameters are a bit strangely named but doesn't take long to figure out. I renamed them to "Inner" and "Outer" diameters, as the author clearly assumed the adaptor would always be used on the outside of the mating ports on the vacuum hose and power tool. That's OK for the Titan thicknesser but not for the Makita belt sander.

And for the belt sander:

For this tool, the (male) adaptor fits into the (female) port of the machine. So I defined the ID of the small end as the inner diameter of the port minus twice the wall thickness.

Let's flash this up once we seem to have a stable setup established.

Here's Benchy. Looks pretty happy, so let's try the smaller adaptor to start with. 

First, export the Fusion model as a 3D printable STL file, then import to Orca Slicer. 

Finally, slice the model, connect Orca Slicer to the Elegoo over wifi and upload it to the machine. 

Then start printing. Looks as if it will take about an hour:

Here's the sander adaptor on the Makita sander:

...and the other adaptor on the thicknesser:

That will do for now!