Collapsible Cup

***There are two models... one is the original version and is printable in one piece. The second, for easier editing is the pieces that need to be assembled.***

I am trying to make a collapsible cup for camping. I remembered these contraptions from Boy Scouts a long time ago and set out to try to make one. I used Tinkercad, as I am new to 3D design. I printed it out as one piece on a Monoprice Mini, and it worked... mostly. I printed the two outer sections above the base plate with supports. The inner section was embedded into the base.

The problem with the design is that shapes in Tinkercad do not allow for smooth curves... only 64 sided objects. The cup expanded nicely and the sections seated against each other properly. However, there were slow leaks either due to not having smooth curves or the resolution of my printer.

I need someone to help me edit this with smooth curves to see fi it will print into a completely sealed cup.

This thing was made with Tinkerc