Lesson 1Spindle: kinds, speed/power graphs, bearings, heat stretch and wobble problemsExplains how spindles are built and work, covering belt-driven, direct-drive, and built-in motor kinds, speed and power lines, bearing setups, heat growth, wobble, and how they all affect straight work and tool lasting.
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 2Auto tool changer (ATC): holder racks, tool grip systems, swap steps and usual breakdownsLooks at auto tool changer build and running, including rack styles, tool holders and grips, change order, sensors, and common mechanical or air faults that harm trust 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 setups: FANUC/Siemens/Heidenhain simple knowledge, program saving, inputs/outputs, warnings, manual data and change modesShows basics of FANUC, Siemens, and Heidenhain CNC controls, like screen layout, program save ways, input/output maps, warning fixes, and safe use of manual data input and edit modes for readying, testing, and upkeep jobs.
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 4Picking a real 3-axis machine model and finding maker data sheetsHelps pick a proper 3-axis machining machine for learning or making, based on size, spindle, tool changer, and power wants, and teaches finding, reading, and matching maker books 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 5Movement setup: X, Y, Z paths, travel ends, ball screws, straight rails, gap checksCovers 3-axis movement, like X, Y, Z paths, home spots, ball screws, straight rails, and gaps. Stresses how wear, wrong line-up, and end settings hit position straightness 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 6Cooling water setup: pump kinds, cleaning filters, water choice, mix strength and dirt causesTells about cooling water parts and work, like pump types, tank design, filter ways, water pick, mix check, and usual dirt sources that cut tool life and part shine.
Centrifugal and high-pressure pump typesTank layout, return flow, and agitationFilter screens, bags, and separator unitsCoolant selection and concentration testsContamination sources and corrective stepsLesson 7Oil setup: central vs hand oiling, oil kinds, times, usual fault signsTells central and hand oiling on 3-axis machines, oil types for slides, ball screws, spindles, reading oil times, check delivery, and spot early oil fail signs.
Centralized vs manual lubrication layoutsWay, spindle, and ball screw lubricant typesReading OEM lubrication charts and intervalsChecking metering units and lube deliveryCommon lubrication failure symptomsLesson 8Extra setups: chip movers, door locks, cooling nozzles, mist pullers and pressed air needsDescribes extra setups for safe CNC work, like chip movers, door locks, cooling and air nozzles, mist removal, and air clean needs, with check and simple fix focus.
Chip conveyor types and maintenanceDoor interlocks and safety switchesCoolant and air nozzle positioningMist extraction and ducting checksCompressed air quality requirements
