Lesson 1Spindle: types, speed/torque charts, bearings, thermal growth and runout effectsDetails spindle construction an behavior, including belt, direct, an integral motor types, speed an torque curves, bearing arrangements, thermal growth, runout, an dem combined impact pon accuracy an tool 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 modesCovers automatic tool changer construction an operation, including magazine styles, tool holders an clamping, tool change sequence, sensors, an typical mechanical or pneumatic failures dat affect reliability an 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 modesIntroduces FANUC, Siemens, an Heidenhain CNC basics, including interface layout, program storage options, I/O mapping, alarm handling, an safe use a MDI an edit modes fi setup, testing, an maintenance tasks.
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 datasheetsGuides selection a a realistic 3-axis machining center model fi training or production, using envelope, spindle, ATC, an power needs, an shows how fi locate, read, an compare OEM catalogs an technical datasheets.
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 considerationsExplores 3-axis kinematics, including X, Y, Z travels, reference positions, ball screws, linear guides, an backlash. Emphasizes how wear, misalignment, an limit settings affect positioning accuracy an repeatability.
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 sourcesExplains coolant system components an operation, including pump types, tank layout, filtration methods, coolant selection, concentration control, an common contamination sources dat reduce tool life an surface finish.
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 symptomsExplains centralized an manual lubrication pon 3-axis machining centers, lubricant types fi ways, ball screws, an spindles, how fi read lube schedules, verify delivery, an recognize early symptoms a lubrication failure.
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 requirementsDescribes auxiliary systems dat support safe CNC operation, including chip conveyors, door interlocks, coolant an air nozzles, mist extraction, an compressed air quality, wid focus pon inspection an basic troubleshooting.
Chip conveyor types and maintenanceDoor interlocks and safety switchesCoolant and air nozzle positioningMist extraction and ducting checksCompressed air quality requirements
