BQ Prusa i3 Hephestos auto bed leveling

!!! PLEASE PRINT ALL FOR BQ Prusa i3 Hephestos !!!

Watch video https://www.youtube.com/watch?v=oD3WfG_pU90

HI this is a working progress model i have proven the concept this works fine with BQ Prusa i3 Hephestos only

this was a trail and error build used loads of filament to get this far, so you don't have too hope you enjoy

ps Used Cura with support structures on all

you will need
1 x 12v 40mm fan
1 x 9g servo
1 x micro switch
2 x 400mm servo leads

any prob