It seems that the obj file generated by EasyEDA is empty or otherwise not compatible with most 3D programs. If I import it either they return an error to me or it is empty.
I apologize to resurrect a year old post but for anyone else who finds this on page one of Google follow this guide to get your PCB into fusion 360: https://blog.squix.org/2022/05/importing-pcbs-from-easyeda-into-fusion-360.html
Our website uses essential cookies to help us ensure that it is working as expected, and uses optional analytics cookies to offer you a better browsing experience. To find out more, read our Cookie Notice
Brand new interactions and interfaces. 
Easy to use and quick to get started. 