Building Block 5 of 5

CAM Programming

Ask any shop manager: the best CAM programmers have machinist backgrounds. The true power of CAM starts with the operator’s knowledge and experience. Would you let a surgeon operate on you if you knew they had never studied anatomy?

In the right hands, CAM systems like Mastercam and Fusion 360 are extremely productive tools. Rather than program with raw G code, CAM programs the machine graphically from a 3D mathematical model of your part — and the same model can generate programs for different machine controls. All projects and certification parts are offered in both systems to meet your preference, and project-based training includes 2D lathe and 3D mill.

A series of certification projects progressively adds part features, ending in two final assemblies — one mill, one lathe — of three parts each. They demonstrate the full range of features learned along the way, and completing one takes all five building blocks: work holding, tool selection, programming, setup, machine operation and inspection, to a specified fit and finish.

Request a quote Request a demonstration

CAM with caution

CAM is the fastest way to produce a program and the fastest way to produce a confident wrong answer. A student who has written G-code by hand can read what the post processor gives them and tell whether it is sane. One who started in CAM cannot, and finds out at the machine.

That is what the four building blocks before this one are for.

Putting it all together

The three parts have to go together. That is why these are assemblies rather than six separate parts — it gives a student a go/no-go check they can run themselves. The parts either fit or they do not, and nobody has to be told which.

All six are below, and they are the models a student programs from. Click and rotate, pan or zoom — if 3D viewing is available.

  • The mill certification project top cover: a rectangular plate with
                        rounded corners, a deep rectangular pocket machined into the face,
                        an oval hole through the pocket floor, and counterbored screw holes
                        around the flange.
  • The mill certification project spacer: a rectangular brass frame with rounded corners, open all the way through the middle, with counterbored screw holes around all four sides.
  • The mill certification project bottom cover: a rectangular steel plate with rounded corners, a shallow rectangular pocket machined into the face, and counterbored screw holes around the flange.
  • The lathe certification project base: a turned steel part with a large cylindrical body, a stepped shoulder, and a threaded stud on the end.
  • The lathe certification project spacer: a short turned cylinder bored through the centre, with three grooves cut around its outside diameter.
  • The lathe certification project end cap: a turned cylinder stepping down in two diameters, with a tapped hole in the large face.

Shown for viewing only. © Immersive Engineering, Inc.

Becoming the Total Machinist

A student finishing this building block has gone from no prior experience to programming from a model, with assessment at every stage and a Skills Learning Objective report showing exactly what they can do.

They also finish holding something. The certification assembly is a finished product a graduate can put in front of an employer and talk through — how it was programmed, how the machine was set and run, how it was inspected, and how they knew it was right. Walking an interviewer through that part evidences the core skills, the hand work and the G-code that got them there. One object, and it covers the whole pathway.

Back to the training system