3D Printed Analysis Chess Pieces - Herman Ohme

I finally decided to create my first chess pieces in a series of analysis-sized chess pieces optimized for 3D printing.

What is analysis sized?  To me, this means for a board many people may use for analysis or possibly casual play when they don't have room for a club sized board. I have designed these pieces for 35 mm squares.  For the "purists", there's no need to cite correct or "regulation" proportions.  IMO, this is not a regulation sized set so everything is currently seasoned to my tastes... however, I would greatly appreciate feedback.  This is what will help me make changes and plan for future designs.

Although I am basing my first set on Herman Ohme's well known design, I am not trying to create an exact replica for many reasons: 1) it's not the same size, and 2) I made some intentional design changes to make 3D printing easier (for example, avoiding or reducing overhangs that would require supports).

Chessnut Air users rejoice... the squares on your board are 35 mm!  I have also included space in the base for the Chestnut sensors or weights (if not playing on an electronic board).

The original Herman Ohme patent:

Here is an early draft of my design, I have some tweaks and hope to do an initial print next week.