IP Laser's Drawing Doctor (Tempus Tools, 2023-09-19) is a CAD preprocessor that either flags errors during standard upload or can be used as the primary upload path to batch-repair files. It detects scale factors, removes/relocates open inners, classifies lines to layers (affecting pricing and engraving time), extracts multiple parts with set material/grade/thickness/quantity, and supports nested-sheet quoting (example 10×5 ft).