Hello @1606739
I find the best non-destructive compression workflow is to:
- Save the 3DM File using the Save Small option.(Which is non-destructive and will just take some processing time when opening the file again to rebuild the display meshes)
- Use the free 7Zip program (www.7-zip.org) to create a .7z compressed file. I find that 7zip can compress a 3dm file into a .7z format to be sometimes about 1/5th the size that the ZIP algorithm/program achieves on 3DM files and overall achieving compression of 10x or more from the original 3DM file size. Note that 7Z compression is non-destructive so there is no affect on the original file… Regards MichaelVS