455 pldxxk ch_stl stl mechanicalcaddrawings 1459857669 38bf3e98e838aee47d527bea9ced7869 8f83afbd361bca235d035aa85b55b75e5502f598ee0d672be93218bd7e20e27d ch assembly 2016 04 05 12 01 09 mechanical cad drawings 0 141 8 144 25 2018 06 03 11 30 50 analyze timings