Auntie CeCe's Modern Workshop Technology Course: Speeds, Feeds and the CNC Machine | Lesson 5

Lesson 5 of 13 in Auntie CeCe's Modern Workshop Technology Course, Part 1 (foundations). We learn to set a machine: cutting speed and spindle speed, a cutting speed table, lathe and milling worked examples, feed and chip load with a feed rate worked example, grinding wheel speed from the classic book, CNC axes on mills and lathes, absolute and incremental coordinates, G-codes and M-codes, reading a short CNC program, CAD/CAM and simulation, and CNC safety. In this lesson: Speed and Feed; Cutting Speed Comes First; Worked Example: Lathe; Worked Example: Milling; Feed and Chip Load; Worked Example: Feed Rate; Grinding Wheel Speed; CNC Axes; Absolute and Incremental; G-Codes and M-Codes; Reading a Short Program; CAD, CAM and Simulation; CNC Safety; Auntie's Recap. Course path: Part 1, foundations: 1 What is modern workshop technology · 2 Shop safety, then and now · 3 Metals and how we change them · 4 Measuring: calipers to CMMs · 5 Speeds, feeds and CNC Part 2, trade-exam build-up: 6 Casting · 7 Furnaces and induction heating · 8 Heat treatment and powder metallurgy · 9 Screw threads and angles · 10 Inspection: Taylor's principle to SPC · 11 Surface finish and machine alignment · 12 Grinding · 13 EDM, ECM, lapping, honing and crack detection The course follows the syllabus of a classic 1970s workshop technology textbook for technicians, rewritten from scratch and brought up to date with CNC, 3D printing, digital measuring and modern safety rules. There's a 3-question quiz at the end (pause and work it out), then the answers and the course path. This course is general education. Follow your instructor, the machine manual, OSHA rules and your shop's safety procedures for any real work. #WorkshopTechnology #AuntieCeCe #Machining #CNC