Been there done this and it cost me VFD + Spindle.!! . . . . . . I made the strain relief from start but temp removed spindle to check some spindle mounts I'd made for some one as didn't have a spare spindle handy but didnt put it back straight away as I had more to make then it got forgot until it did excatly what yours did.!! . . . . . Hope you haven't fried the spindle as well.!