Imran,
The Sketch Path has a parameter: Stroke Smoothing. If that is not sharp enough, perhaps switch the final spline to Linear. Set Blend and Radius parameters smaller than you might have it right now.
An overview of it starting at 03:26 [min: sec]
The path will cut where it detects an edge, or where the path itself has a vertice (even the Spline interpolation points will produce cut details here). If there is no edge and no vertice/point, then no detailed cut in this location will happen.
What part of the provided file is not clear? The glue part, the detailing, how to set up a selection? So I can focus more on the needed parts. Please advice.
Here is a complete series about all main parts.
https://www.cineversity.com/vidplaylist/voronoi_fracture_reference/
Especially:
Detailing
https://www.cineversity.com/vidplaylist/voronoi_fracture_reference/r19_voronoi_fracture_reference_fracturing_enhancements_detailing
Glue
https://www.cineversity.com/vidplaylist/voronoi_fracture_reference/r19_voronoi_fracture_reference_geometry_glue_1_settings
I hope that covers it, as I’m not sure what I could share in a better way.
All the best