Thats interesting, have you managed to print it? I think I can do 350x350x350 on my printerI haven’t seen the discharge issue you are reporting although only had the bike a few days.
If you have access to a suitably sized 3D printer they sent me a link to an stl file to print a replacement motor cover. They are also talking about releasing all the 3D files to owners which will be a good thing ( I broke a hose clip/cover changing out the brakes )