Topology optimization in the context of additive manufacturing is frequently viewed as a tool to unlock intricate geometries, as 3D printing techniques are less hindered by the traditional constraints of complex structural fabrication. However, additive manufacturing is not entirely free of geometric limitations, which must be rigorously integrated into the optimization frameworks. This research outlines a topology-optimization approach specifically designed for Continuous Fiber Fabrication (CFF), a process that embeds carbon fibers within an isotropic matrix to produce parts with enhanced mechanical performance. Despite its benefits, the integration of fibers necessitates specific geometric requirements that must be addressed during the design phase. The suggested method simultaneously accounts for the orthotropic nature of continuous fiber-reinforced composites and enforces “minimum length scale” constraints. Consequently, this ensures that the final design is fully compatible with both manufacturing tolerances and the designated fiber reinforcement paths.