The document discusses design considerations to facilitate machining operations like milling, drilling, and keyway generation. Some of the key points discussed are: 1) Parts should be designed to be easily fixtured and held securely for machining. Interrupted cuts and machining of hardened materials should be avoided. 2) Features like holes, slots, and surfaces should be located and oriented to allow them to be machined efficiently using standard cutting tools in sequential operations without repositioning the part. 3) Part dimensions and tolerances should allow for machining stock removal and avoid unnecessary small tolerance finishes.