The converter software is ready. It's called IMG2EMX and I have uploaded it to my website.
You can download it here:
http://www.emxp.net/IMG2EMX.htm Please note that the input files for this software should be (raw) image files, typically with the .IMG extension.
These are the files created by the HxC conversion software when exporting .HFE files to Raw sector format .IMG files.
.IMG files created by OmniFlop when reading Emax floppy disks are the same, so they are supported as well.
IMG2EMX does not directly support .HFE files.
I have tested the software with some OmniFlop image files and with some image files created from EMAX-I .HFE files, and it seems to work fine.
But if you encounter any problem, just let me know and I will try to resolve it.
Information how to use IMG2EMX can be found in the README file included in the download package.
But it's really simple: put all .IMG files in the folder of IMG2EMX and double click (start) IMG2EMX.EXE. The software will convert all (valid) files to either .EM1 or .EM2 files, depending on whether the .IMG file is an EMAX-I or an EMAX-II floppy disk image.
Have fun !