Model engine project 2: Rod soft jaw
Model, program toolpaths, and machine a rod soft jaw, which is a work holding part for the model engine.
Using the model and engineering drawings provided, set up and program toolpaths for the soft jaw.
A customer has asked your company to redesign a model engine assembly and to machine a prototype. The company has provided engineering drawings of the original model engine rod soft jaw as well as a CAD model. In this project, you are asked to model soft jaws to hold the connecting rod during final machining operations. To find your soft jaw dimensions, use the supplied engineering drawing or source a soft jaw model that matches the soft jaws used in your shop.
Using the model and engineering drawings provided, set up and program toolpaths for the soft jaw. Consider how the soft jaws are clamped during machining and ensure any tools used have adequate access to geometry. Sample process plans, setup sheets, cutting data, and inspection reports are provided but use your judgment, the tools, and machines you have available, and your knowledge to complete the project.
Teaching this project to students in the classroom?
Use this instructor guide to incorporate this and our other model engine projects into your lesson plans. You'll understand how to use CAD and CAM workflows to combine this and other projects into a model engine assembly. Then, machine the model engine using standard stock sizes.
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Need to teach the skills covered this project?
Send your students to our Introduction to CAD, CAM, and Practical CNC Machining for Milling self-guided course. They can learn at their own pace, track their own progress, and earn a certificate of completion when they get 75% or more on the final test.