Roller ruler (parametric with optional screws)

This is slightly modified version 5hwb's Roller ruler (parametric) https://www.thingiverse.com/thing:398515.

I had problem with axes snapping so I added option for screws (and even screw pin in measuring wheel).
My axis screws are M3x20 and M4x6 for pin.

Also there is now option for double digits on second wheel - so you can read numbers up to 99cm (as long as your guess of the length is not off by 50cm ;) ).