Be gentle! I originally designed this flat. But I thought it looked significantly better, with the curve. I had no difficulty printing it with the tree settings I have in the .3mf. Use pliers & slowly snap each support off. The teeth are pretty solid - but if you're not careful you could break one off.
The stand center is a TIGHT fight. Be gentle but firm & push the center piece by putting pressure on the very top middle. (If you push on the ends, you will bend them - like I did. But I have since increased the material below there by ~1.4mm to make it sturdier.) If you CANNOT get it to fit in - consider some slight sanding or reprinting @ maybe 99% scale. Mine is so tight that I did not use glue - which I like.
The Jaws will set less tight on the stand but should match the shape of the top center piece. I don't plan to glue mine - but it would certainly be sturdier if you did.
I prefer to print the base upside down, it looks nice with the plate's texture.
I think the jaws look more interesting with and are set to use a concentric surface layer.