Split mesh along Bezier curve in Blender 2.75 Found this topic, but my Bleder seems to lack the Knife Project tool. Is there anything alike that in newer versions?
I tried using the Sculpt Tools, but all the Grease Cut does for me is duplicate the part of mesh the curve should split without any cut. I'm splitting multi-part mesh and sometimes need several parts to be split with one curve. Like making jigsaw puzzle.
You have to just select the face you want to add a cut in and Subdivide it, by going (w) and the first option 'subdivide', then for instance you want a vertical cut, so select the horizontal edge and by pressing (x) or (Delete) key and choosing 'Dissolve Edges' you will delete it but with out corrupting the mesh, and then you can use the 'Edge Slide' to position your cut on any position on your face you want. To Edge Slide press  (Ctrl+E) and choose the fifth option from the bottom 'Edge Slide'.