3d printer filament powered cog engine WIP

thingiverse

This is a prototype engine I aim to transform into a filament counter, requiring only the solution to its counting mechanism. The full model of Version 2 has been uploaded, but it's not functional - a printed Version 1 exists with numerous issues resolved in Version 2. Anyone possessing an idea on how to implement a length-counting system is encouraged to share their suggestion in the comments below.