Super small stat change counter that can count both + and - 0-9 on two separate discs, designed with Magic: the Gathering in mind. Includes a PETG printed spring to help make the numbers stay still. Fully printable on a 0,4mm nozzle. No screws, glue or grease required!

A twin project of my other uploaded wound/life counter design found here: 

This 27x30mm small counter is designed with focus on being an aid with stat changes in Magic: the Gathering, with one side showing positive stat changes and one side showing negative stat changes. Just flip it over to switch! The bottom is designed to be flat simply to help keep track of the counters orientation.

The plastic spring in this counter should be printed in PETG. I have also uploaded a spring free profile that is only printed in PLA!

Assembly instructions for both versions (spring free version simply ignores the spring instructions):

Take the plus sign marked cover and place with the pin hole up. Place one of the numbered rings so that the numbers are correctly oriented on the left side, with one of the springs in the leftover slot like the image below

Take the second numbered ring on place on top of the first ring, but along the other side of the center pin slot. Place the second spring in the leftover slot like in the image below

Take the minus sign marked cover and push in place against a flat surface. The center pin only fits one way

And you're done!