Text and diagram instructions are at https://archive.bridgesmathart.org/2024/bridges2024-553.pdf and a video tutorial is at https://www.youtube.com/watch?v=uVQRYI-qCSs
Here are some extra tips for success
- Make sure all units have the same orientation, i.e. do not mix left- and right-handed modules
- Keep adding units the same assembly, i.e. do not make and join separate subassemblies
- As you make you zonohedron, remember that you can squeeze the vertices so that you make space to add more units: adding later units should be as easy as assembling the first units into the first vertex. (This is unlike many modular assemblies where the last units are the hardest to assemble).