I worked a long time ago on version 1.1 but never posted it here because there simply wasn't enough interest in this topic as it seemed to me.
The new version has two additional presets for chains because I received some feedback from users who have made the necessary measurements.
Additionally I have added a new type of gauge, the gauge type 2 bent. It is a modified variant of my gauge type 2 with the gauge bent (parameters bend position / angle). Harder to produce (precision bending), but it allows a wider range of material thickness and you can fine tune your gauge to your needs. Maybe not applicable for many users, I implemented it out of interest for the mathematical equations.