rack and pinion for 28BYJ steppen motor

This is a remake of a rack and pinion design I found here on thigiverse before but cannot find the source anymore. I made this for my moving liquidsenor project o github: https://github.com/gtmans/movingliquidsensor Thinkercad model https://www.tinkercad.com/things/6feixQA668Z-movingliquid-parts-127-public