====== Manual Mill (JET) Clearance ====== {{section>tools:clearance_template&noheader&nofooter}} ====== Tool Specific Instruction ====== ===== Point out the following tool features ===== * Maintenance Tag * Basic Milling principals: * Climb vs conventional milling. * Work vs work-holding * Spindle RPM vs Feed SFM * Relative cutting rate of steel (slow) vs aluminum (fast). * Tram * Measuring Equipment (calipers, micrometers, scales or rulers, dial indicators, edge finder. * Basic Machine Components and Controls: * On/off * Spindle Brake * Speed control * FWD/Rev * Collet draw bolt * DRO * Bed * High/ Low Gear * Oil Pump * Deburring * X Motion Controls: * Manual wheel * Axis Lock * Ways * Power feed * Y Motion Controls: * Ways * Manual Wheel * Axis Lock * Z Motion Controls: * Z-Axis Cranks * Axis Lock ===== Identify & mitigate common hazards ===== * Metalworking when done properly is much quieter than woodworking. * Knows the common causes of noise and which hazards they indicate (vibration, deflection, dull tooling). * Heavy things – tooling, work holding equipment & workpieces. * Sharp things - cutting tools, chips, burrs on work piece. * Spinning things – spindle, axis wheels. * Hot things - chips, work piece, tools. * Toxic Fumes - avoid prohibited metals. * Hot flying debris - use appropriate tools, work holding, and clear work area. * Fire/Gas Leak - stay vigilant (listen/smell test), use ignition button correctly. ===== Allowable Materials ===== * Can name one common material that is safe for use on the mill. * Can name one material that is not allowed on the mill. ===== Safe Setup/Operation/Cleanup ===== * Demonstrates proper work-holding with vise, clamps. * Demonstrates proper feed and speed selection. * Demonstrates proper cutting tool selection. * Demonstrates proper mounting of cutting tool in collet. * Demonstrates facing, drilling, profile cutting. * Demonstrates edge finding. ===== Knowledge and Technique ===== * Knows and demonstrates proper PPE. * Demonstrates how to properly use the power feed. * Demonstrates proper protocol in the event that the machine breaks. * Demonstrated proper cleanup. * Demonstrates what to check on if the Mill is making a lot of noise. * Demonstrates how to change settings to ensure best quality cuts. * Demonstrates how to properly use the gear speed lever and the speed control. * Knows the most notable aspect of the edge finder. * Knows what a boring bar is used for.