NewMakeIt CNC Milling Metalwork Tormach  course class newmarket york region introduction intro

Intro to CNC Milling

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Goals

By the end of this unit of study, the student will be able to draw a part and create the g code necessary to operate a CNC milling machine in Fusion 360.  They will know how to operate the basic functions of the Tormach 1100 milling machine and machine two sample parts on the mill.

 Part 1

  • Walk around CNC machine What the machine will and will not do
  • Work holding on the machine. Basic Vise and clamping techniques (necessary to understand design and retract clearance concepts)

Intro to first project design portion

  • Students will be required to draw two parts in material 3.5” x 3.5” x 1.5” thick. The parts will use Facing, boring, adaptive clearing, 2d pocketing, and circular functions.
  • Modeling in Fusion 360 environment
  • CAM in Fusion 360
  • Postprocessors output
  • Choosing the proper milling bit
  • Setting the proper bit in the library
  • Feeds and speeds for materials
  • Setup tab in Cam (stock setup, origin setup, allowances, program name, and comment)
  • 2.5 D milling (facing, pocket, contour, slot, bore, adaptive clearing)
  • Using the dropdown tabs for the above operations.
  • Simulating tool paths
  • Output G code
  • Creating a setup sheet and using it to verify job
  • Work time for students to design first part
  • Work time to use CAM function and create g code for the first part
  • Simulating the toolpath

Part 2

 Turning on power to the machine (sequence)

  • Turning on computer
  • Computer interface (Pathpilot)
  • Referencing x, y, z axis
  • Mounting work in the vise using parallels
  • Setting x, y, z home positions
  • Using the jog shuttle
  • Setting up tool in path pilot
  • Running simulation in Machine
  • Running part in machine
  • Students create the parts they have designed in Fusion in the previous lesson