Associate | ~3 hr.

Model engine project 7: Engine case (left)

Module

Create the next part of the model engine by modeling, programming, and machining the left half of the engine case.

Overview

Using the model and engineering drawings provided, set up and program toolpaths for the left engine case.

Project scenario:
A customer has asked your company to redesign a model engine assembly and to machine a prototype. They have provided engineering drawings of the original. They would like all the internal parts to be interchangeable but would want the exterior design of the engine to be unique. This project requires you to model and redesign the engine case left half (LH) while maintaining the mounting locations for the case, crank, and cylinder as well as internal engine clearances. engineering drawing. Use the engineering drawing as a reference for the mounting locations and overall dimensions of the part. Consider various stock sizes and shapes to incorporate your unique design and consider any changes to the outside shape should be mirrored over to the engine case right half (RH) component as well.

The customer also asked your company to prototype the model engine case. They have provided engineering drawings of the original part as well as a CAD model. This project requires you to set up and program toolpaths for the case LH provided. Begin with the supplied engineering  drawing and CAD model. Use the engineering drawing as a reference to plan tools required and work out any work holding requirements. Consider various stock sizes and shapes and think about the number of operations required to machine the part. 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.



Instructor resources

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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Share modules and courses using Playlists. Once you create a Playlist, share the URL with your students and they can sign into their Autodesk Account to access. Choose and share the modules that best fit your curriculum using the links below.

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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.

Download resources

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Learning pathways:

Generative Design for Manufacturing Learning PathwayDesign for Manufacturing Learning PathwayCAD for Mechanical Design Learning PathwayCAM for 2.5 Axis Milling Learning Pathway

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