1. To be able to draw a 3-view (or 2-view) drawing of a simple machine part using CAD.
2. To be able to draw an assembly drawing consisting of several machine parts using CAD.
3. Can give simple drawing instructions using dimensional tolerances, fits, surface roughness, geometric tolerances, and welding symbols.
4. Materials can be described in the title block using material symbols.
Outline:
In this subject, the instructor who was in charge of mechanical design at companies, makes use of his experience and teaches the significance of the mechanical drawing rules necessary for manufacturing machine parts and the instruction method, the main mechanical drawing instruction method by CAD, is a lecture (class ) and exercises.
Style:
The drafting rules will be explained using Manaba content, and an active learning class will be developed in which the team will complete the printing task each time. CAD assignments aim to acquire CAD skills by performing assignments based on questions in the CAD Engineer Examination. Furthermore, by utilizing the learned drafting rules and CAD skills, the team considers the drafting instructions necessary for the parts of the Stirling engine and accomplishes the assignment of CAD drafting of the parts. [Class time 60 hours]
Notice:
Since most of this lecture is knowledge of mechanical drawings that determine the dimensional and shape accuracy of machine parts and their assembly, the lecture content should not be limited to mere knowledge, but should be conducted in conjunction with lecture content and CAD drawing exercises. In addition, students are asked to submit assignments through exercises related to drafting knowledge during class, and a CAD practical test is imposed as a regular examination. CAD assignments will be submitted to Manaba, so make sure that there is no delay in submission.
Reference book: Detailed mechanical drawing 3rd edition (Jikkyo Publishing) Hiraso Shoten
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Theme |
Goals |
| 1st Semester |
| 1st Quarter |
| 1st |
1st grade review 1 (three-dimensional and three-sided drawing) |
3-sided view can be placed from 3D
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| 2nd |
1st grade review 2 (placement of three views) |
Able to arrange 3-sided views and cross-sectional views with consideration for processing
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| 3rd |
1st grade review 3 (dimension placement) |
Able to create three-dimensional drawings (including cross-sectional views, etc.) that consider processing from three-dimensional objects, and to efficiently measure them.
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| 4th |
Significance of dimensional tolerance |
Can explain the significance of specifying dimensional tolerances
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| 5th |
Dimensional Tolerance Exercise |
Dimensional tolerance can be specified
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| 6th |
Significance of fit |
Can explain fit symbols and tolerance indications
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| 7th |
Practice of fitting instructions |
You can indicate the fit symbol and its tolerance.
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| 8th |
Midterm exam |
Drawing rule confirmation test for 3-sided drawing, dimensional tolerance, and fitting
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| 2nd Quarter |
| 9th |
Surface raghness |
Can specify surface texture (surface roughness)
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| 10th |
Significance of geometric tolerance |
Can explain the significance of specifying geometric tolerances
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| 11th |
Geometric tolerance exercises |
Geometric tolerance can be specified
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| 12th |
Welding symbol/Material symbol |
Simple material symbols and welding symbols can be specified.
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| 13th |
Mechanical drawing practice using CAD (basic operation) |
Can perform basic drawing operations using CAD. (Construction line, line segment, OSNAP, move, trim, layout, title block entry, submission method)Comply with intellectual property and information security in CAD data.
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| 14th |
Mechanical drawing practice using CAD (drawing submission) |
You can create mirrors, chamfers, and R using CAD and submit drawings to LMS.
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| 15th |
Machine parts CAD basic practice (CAD 1st grade) |
Rotation copy, mirror, divider, rotation (reference) Can perform basic operations of 2D CAD figures.
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| 16th |
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Return of answers
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| 2nd Semester |
| 3rd Quarter |
| 1st |
Mechanical drawing practice using CAD (dimensional tolerance, processing instructions, notes) |
Appropriate dimensions, tolerances (fits), and notes can be indicated on three-sided drawings.
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| 2nd |
Mechanical drawing practice using CAD (section drawing drawing) |
Appropriately indicate dimensions, tolerances (fits), etc. on three-sided drawings including cross-sectional views.
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| 3rd |
Mechanical drawing practice using CAD (geometric tolerance) |
Appropriate dimensions, tolerances, and fits (geometric tolerances) can be indicated on a three-sided drawing.
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| 4th |
Mini vise parts CAD drawing |
It is possible to draft the components of a mini-vice.
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| 5th |
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Ditto
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| 6th |
Mini vise assembly drawing CAD drafting |
You can draw an assembly drawing using the parts drawing of the mini vise.
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| 7th |
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Ditto
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| 8th |
midterm exam |
Practical test of three-sided drawing including fit, surface roughness, and geometric tolerance
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| 4th Quarter |
| 9th |
Stirling engine explanation and disassembly training |
Each team can disassemble a Stirling engine and understand the engine's function and structure.
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| 10th |
Stirling engine parts sketch drawing and assembly training |
Each team can sketch the main parts disassembled, taking into account fit, geometric tolerances, processing methods, roughness, etc.
Each team can assemble a Stirling engine.
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| 11th |
Stirling engine parts drawing CAD drawing |
Based on the sketch drawings of the main parts disassembled within the team, dimensions can be specified while taking into account fit, geometric tolerances, processing methods, roughness, etc.
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| 12th |
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Ditto
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| 13th |
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Ditto
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| 14th |
Stirling engine assembly drawing CAD drafting |
Draw the assembly drawing of the Stirling engine from the parts drawing, and understand the function and structure.
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| 15th |
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Ditto
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| 16th |
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Return of answers
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