Has anyone tried setting a flat bed scanner with the light disabled under their enlarger to scan negatives or slides? The reason I ask is that I have my grandfathers slide collection that I would like to archive digitally for the family. There are literally thousands of slides in this collection and I can't afford to pay to have them converted by a lab. I've looked at film scanners but since I'm back in school full time working on my ME I can't afford to drop the cash on a film scanner right now either. I do have a flat bed and an enlarger though. After reading about guys using scanners to take "large format photos" I thought maybe this could be adapted to use with the enlarger.

Any thoughts or experiences would be appreciated.