There is a new SHC for OnStep and here is the case i made for it.
You can print some parts in a clear filament for the LEDs to shine though.
The top and bottom used M3 heat set inserts to bolt on.
https://oshwlab.com/msauve/smart-hand-controller2-plus-mjs_copy_copy_copy
The author marked this model as their own original creation.