More stable base with anti-scratch protection for Pietro Grinder

The Pietro Grinder is famous for the great cups that it can produce but poor ergonomics.

This base improves a lot the ergonomics: I'm not bumping my thumb on the table or the lever on my other hand; with a wider base, I put less effort both to grind and to hold the grinder.

The base can be printed in PLA with 0.2 or even 0.24 mm height, 2 or 3 perimeters and 15% infill. In my P1S, it took about 2h40 to print with 0.24 mm and I used 112g of PLA.

The internal case can be printed in TPU with 0.24 mm height, 2 wall loops and 10% infill. Printing at 100 mm/s (50mm/s in the first layer), it took me 6h11 min to print and consumed circa 50g of filament.

I recommend to print first the test files to check how tight the grinder will fit inside. If too tight, the cup will get stuck inside and it will be annoying to remove. Too lose and it will wobble when your grind.

If too tight, just scale up in X and Y by circa 0.5% to increase by 0.3-0.4 mm in each axis and test again. If lose, do the opposite.

No supports or brim needed.

Consider also adding some anti-slip pads to the bottom of the base depending on the surface that you will grind your coffee. PLA can be a bit slippery. I'll leave an example here, but I didn't test since I gave enough grip on the mat that I use my Pietro: https://geni.us/4S8zJh

Check also this video about the base and how easier became to grind with my Pietro:

Notice that this is a non-commercial model. If you want to sell, I'm happy to negotiate a low cost commercial license just to make it fair for both parties.

This is a wider and higher base for more stability when grinding and an internal case in TPU to protect the grinder from scratches, especially considering the efforts when grinding light roasts and dense beans.