Today we are releasing Delta Stage v1.2.0!
https://openflexure.org/projects/deltastage
This upgrade improves and adds some new stage adaptors, such as 55mm petri dishes. It also updates the Simple Base to use the same attachment mechanism as the Raspberry Pi and Sangaboard base. The optics module casing for transmission microscope using infinity corrected objective lenses can now be found in the optional components.
Hope you find these improvements useful. As always if you have feedback, you can write an issue or use the forum.