AME 211 - Computer-Aided Drafting and Manufacturing, Spring 2024 Micro Homework 06 - Create a ruler-based drawing of the part shown below [Bethune – Engineering Graphics with AutoCAD 2020, p504]. Draw all necessary views (use section views as appropriate), add all dimensions and the tolerances listed below. Submit a PDF file with an image of your drawing to D2L. 1. Define the bottom surface as datum A. 2. Assign a perpendicularity tolerance of 0.4 to both sides of the slot relative to datum A. 3. Assign a perpendicularity tolerance of 0.4 to the centerline of the 30mm-diameter hole at MMC relative to datum A. 4. Assign a feature tolerance of ±0.8 to all three holes. 5. Assign a parallelism tolerance of 0.2 to the common centerline between the two 20mm- diameter holes relative to datum A. 6. Assign a tolerance of ±0.5 to all linear dimensions. 25 030 25 25 30 30 020 95 TOTAL A- 30 15 SLOT 15 10 Problem 1 Item BOTTOM SURFACE Ruler-based drawing with all details Cleanness and use of construction/projection lines Line types and widths Points 15 10 10 All center lines included 5 Consistency of dimensions 5 All linear dimensions shown properly with tolerances 20 All geometric tolerances shown properly, datum defined correctly (7x5pts) Total 35 100 1 - AME 211 – Computer-Aided Drafting and Manufacturing, Spring 2024 Grading rubric definitions Cleanness and use of construction lines: The construction/projection lines are used to layout different parts of the drawing such as lines (and edges), centers, segments, and circles to ensure that (not limited to) • The lines (and edges) that are parallel or vertical stay parallel or vertical. Angles between the lines stays consistent with the given drawing. Arcs follow the curvature and radius of the circle that they belong to. Line types and widths: Lines are drawn with the correct type and width, and can be distinguished clearly. Consistency of dimensions: Dimensions that are used to create the drawings follow the dimensions given in the figure. • In terms of units (e.g., inch or millimeter). Length of the lines compared to each other. For instance, if two lines have lengths of 20 mm and 40 mm, the length of line one should look like half of the other line. 2