Parameteric Specialita Single Dosing Modification

I printed thing 4614000 designed by JLiz for a friend, and after he tried it out we discussed some changes. I decided to create a remix to implement them. I was partly trying to show off what could be done with 3D printing, and I guess I was successful because now he owns an Ender 3 :-).

I know nothing about Espresso (I don't even drink coffee) so I started out by copying the original design exactly. You can use configurator to make a near perfect copy of thing 4614000 by adjusting the parameters. I copied features that I didn't even understand just to make sure it worked the same way.

I then made some modifications, including a square hopper which better matches the look of the machine, and a funnel to help guide the beans into the hopper. The tamper now extends all the way to the bottom of the hopper, and it's possible to move the tapered 'throat' higher up in order to place it at the base of the funnel. I also made a new tamper handle which is a sphere. I think this looks a li