Lesson 1Spindle: types, speed/torque charts, bearings, thermal growth and runout effectsE explain spindle build and how e dey work, including belt, direct, and integral motor kinds, speed and torque lines, bearing setups, heat growth, runout, and how dem all join to affect correct measure and tool long life.
Belt-driven vs direct and motor spindlesReading spindle speed and torque chartsSpindle bearing types and preload effectsThermal growth, warm-up, and offsetsRunout checks and impact on tool lifeLesson 2Automatic tool changer (ATC): magazine types, tool clamping systems, change sequence and common failure modesE cover automatic tool changer build and work, including magazine styles, tool holders and clamping, tool change order, sensors, and usual mechanical or air faults wey affect steady work and safety.
Carousel vs chain and drum magazinesTool holder tapers and pull stud designTool clamp, unclamp, and drawbar checksTool change sequence and interlocksCommon ATC jams and fault diagnosisLesson 3Control systems: FANUC/Siemens/Heidenhain basics, program storage, I/O, alarms, MDI and edit modesE show FANUC, Siemens, and Heidenhain CNC basics, including interface setup, program storage choices, I/O mapping, alarm handling, and safe use of MDI and edit modes for setup, test, and fix work.
FANUC, Siemens, Heidenhain interface overviewProgram storage, backup, and recall methodsDigital and analog I/O signals on the CNCAlarm categories, diagnostics, and reset stepsSafe use of MDI, edit, and lock modesLesson 4Selecting a realistic 3-axis machining center model and locating manufacturer datasheetsE guide you to pick real 3-axis machining center model for training or production, using size, spindle, ATC, and power needs, and show how to find, read, and compare maker catalogs and tech sheets.
Defining part size and accuracy requirementsEvaluating travels, table size, and payloadComparing spindle power, speed, and taperAssessing ATC capacity and tool interfaceFinding and interpreting OEM datasheetsLesson 5Kinematics: X, Y, Z axes, travel limits, ball screws, linear guides, backlash considerationsE look into 3-axis kinematics, including X, Y, Z travels, reference spots, ball screws, linear guides, and backlash. E stress how wear, misalignment, and limit settings affect position correct and repeat.
Axis naming, travels, and home positionsSoft limits, hard limits, and overtravelBall screw design, pitch, and supportLinear guideways and lubrication needsBacklash sources, checks, and compensationLesson 6Coolant system: pump types, filtration, coolant selection, concentration and contamination sourcesE explain coolant system parts and work, including pump kinds, tank layout, filter methods, coolant pick, concentration control, and common dirt sources wey cut tool life and surface fine.
Centrifugal and high-pressure pump typesTank layout, return flow, and agitationFilter screens, bags, and separator unitsCoolant selection and concentration testsContamination sources and corrective stepsLesson 7Lubrication system: centralized vs manual, lubricant types, schedules, common failure symptomsE explain central and hand lubrication on 3-axis machining centers, lube kinds for ways, ball screws, and spindles, how to read lube times, check delivery, and know early signs of lube fail.
Centralized vs manual lubrication layoutsWay, spindle, and ball screw lubricant typesReading OEM lubrication charts and intervalsChecking metering units and lube deliveryCommon lubrication failure symptomsLesson 8Auxiliary systems: chip conveyors, door interlocks, coolant nozzles, coolant nozzles, mist extraction and compressed air requirementsE describe extra systems wey help safe CNC work, including chip conveyors, door locks, coolant and air nozzles, mist pull out, and press air quality, with eye on check and small fix.
Chip conveyor types and maintenanceDoor interlocks and safety switchesCoolant and air nozzle positioningMist extraction and ducting checksCompressed air quality requirements
