Evren Robyn developed core geometry construction enhancements for the SCEPCal calorimeter within the key4hep/k4geo repository, focusing on modular and scalable detector modeling. Using C++ and XML configuration, Evren implemented partial construction and visualization controls, allowing selective assembly of calorimeter staves and towers based on phi, theta, and gamma ranges. The work included refactoring placement logic to improve maintainability and support future extensions, as well as adding detailed segmentation files for accurate geometry representation. These changes laid the foundation for more efficient simulation pipelines and facilitated easier verification and analysis of detector geometry in high-energy physics applications.