Another Poop stopper

I needed to improve the filament change on my X1C, I had tried all the existing solutions and made various changes myself.I publish this solution that is giving me excellent results, I printed many models with hundreds of filament changes without having any curls on the printing plate.Cutter blades are easily found everywhere, the printing filament is PETG, but I believe there are no problems using other filaments.I hope it will be useful to some of you, good 3D printing!