If your drive fails and the issue was not that it needed a new belt, finding a replacement drive is expensive (like $80 or $90 US) and difficult.
Long story but there are options out there.
You can find a drive that reads and writes 720k disks and buy a converter board that connects the old 24 pin flat cable from the X2/X3 to a 34 pin with seperate power supply.
If you are in Europe you are in luck as they are made there and are about $30US just search on that and you will find the company.
If you are in the US you can still buy them but because of Covid I was told shipping is only through DHL and that ads another $30!
So, my journey ended with me going on a vintage PC board, decribed my problem and a very nice memeber custom built me an interface board for $40 shipped. It works perfectly. It also should work with a Gotek Floppy emulator (720K compatable) and allow you to add one to your X2/X3. I have one but have not installed it yet.
PM me and I can give you his e-mail address as he has enough parts to make 2 more.
