Eyepiece holder

This is the [UC2](https://github.com/bionanoimaging/UC2-GIT) insert that adapts any commercially available eyepiece into the basic cube. The adapter can hold a large variety of eyepieces, you just need to adapt it to their diameter using the Customiser. Find more information about the Eyepiece Holder Cube in its [GitHub page](https://github.com/bionanoimaging/UC2-GIT/tree/master/CAD/ASSEMBLY_CUBE_Eyepiece_v2)


Open the file in Customizer to adapt it for your eyepiece. The default settings fit this [20× eyepiece](https://de.aliexpress.com/item/32965050204.html?spm=a2g0o.productlist.0.0.7aa657eeefLUfu&algo_pvid=cd60fca0-3fa5-4191-9ce9-303815e2afa7&algo_expid=cd60fca0-3fa5-4191-9ce9-303815e2afa7-1&btsid=76036b58-6717-4d1f-a4a0-c3d4bacd0450&ws_ab_test=searchweb0_0,searchweb201602_2,searchweb201603_52).