Check out the new FILAFAB winder on Kickstarter. Edward Clifford has incorporated the filament sensor into his offering to control winding speed based on filament diameter.
https://www.kickstarter.com/projects/1574214560/filafab-first-professional-filament-extruder-and-w
https://www.kickstarter.com/projects/1574214560/filafab-first-professional-filament-extruder-and-w