Parsing design (AST generation)...
Saved backup file: /Users/Jon/Documents/OpenSCAD/backups/DES_ChocChordCaps-backup-xJL27550.scad
Compiling design (CSG Tree generation)...
WARNING: variable crossSection not specified as parameter, in file DES_ChocChordCaps.scad, line 12
WARNING: variable Legends not specified as parameter, in file DES_ChocChordCaps.scad, line 12
WARNING: len() parameter could not be converted, in file scad-utils/trajectory.scad, line 7
WARNING: len() parameter could not be converted, in file scad-utils/trajectory.scad, line 7
WARNING: len() parameter could not be converted, in file scad-utils/trajectory.scad, line 7
WARNING: len() parameter could not be converted, in file scad-utils/trajectory.scad, line 7
WARNING: len() parameter could not be converted, in file scad-utils/trajectory.scad, line 7
WARNING: Ignoring unknown function 'to_3d', in file skin.scad, line 11.
WARNING: len() parameter could not be converted, in file skin.scad, line 37
WARNING: len() parameter could not be converted, in file skin.scad, line 67
WARNING: len() parameter could not be converted, in file skin.scad, line 37
ERROR: Recursion detected calling function 'len' in file skin.scad, line 59
TRACE: called by 'max_element', in file skin.scad, line 52.
TRACE: called by 'distribute_extra_vertex', in file skin.scad, line 52.
TRACE: called by 'distribute_extra_vertex', in file skin.scad, line 52.
TRACE: called by 'distribute_extra_vertex', in file skin.scad, line 52.
TRACE: called by 'distribute_extra_vertex', in file skin.scad, line 52.
TRACE: called by 'distribute_extra_vertex', in file skin.scad, line 52.
Compiling design (CSG Products generation)...
Geometries in cache: 1
Geometry cache size in bytes: 0
CGAL Polyhedrons in cache: 0
CGAL cache size in bytes: 0
Compiling design (CSG Products normalization)...
Normalized CSG tree has 0 elements
Compile and preview finished.
Total rendering time: 0 hours, 0 minutes, 1 seconds