Base for Ayanami Rei (Alter) in summer uniform holding a school bag. She looks rather vintage and the figurine feels kinda soft to the touch. I don't know what model she is, nor the year she was made. Came in without base. So, I make one.

Print the base top-down. The hole for her foot pins are 6.1 mm which 0.1 is the clearance. No special care needed for the base. It should just fit.