TopSolid’Split 7.7 from Missler Software is an extension of TopSolid’Design, which enables toolmakers to define and design core cavity blocks from an imported 3D plastic part or a design from the software. Once the model is imported to TopSolid’Design, the part can be prepared for injection using TopSolid’Split. The user can analyze the draft angles of the model and globally or differentially control the shrinkage factor related to the material uses. The software extension automatically determines the best parting lines, which the user can redefine locally. The module features intelligent wizards to automatically generate shut-off surfaces and external parting surfaces. The extension can also define all the inserts needed to account for production constraints at the core and cavity block split stage.