2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/18333We improve our previous results for the percolation thresholds of isotropically oriented rods in three dimensional boxes. We prove again the applicability of the excluded volume rule in the slender-rod limit (radius/length -> 0). Other limits for the rod sizes are discussed and important finite-size effects are revealed.2 pages, 3 figuresStatistical Mechanicstext