Craftsman Computer Aided Mechanical Drawing study guide
Craftsman Computer Aided Mechanical Drawing · Work through your exam, one topic at a time.
Craftsman Computer Aided Mechanical Drawing is a trade-level certification for people who produce mechanical drawings with CAD software - drafters, machinist-technicians, tooling staff, and engineering students who want documented proof that they can turn a part into a clean, standards-compliant drawing set. The exam blends multiple-choice items with drawing and interpretation tasks, so it tests both vocabulary and hands-on output: line conventions and projection rules on one side, layer setup and plotting on the other. The Craftsman Computer Aided Mechanical Drawing study guide has 8 sections and about 2,668 words.
01Fundamentals of Engineering Drawing and Drafting Standards
This domain checks whether you can set up a drawing sheet to a recognized standard before any geometry is drawn: sheet size, scale, line type, title block, projection symbol and units. The reference framework is ISO 5457/ISO 7200, with ASME Y14.1/Y14.2 as the common alternative; know which one a title block claims to follow.
408 words, about 2 min02CAD Software Operation and File/Environment Management
Start from a template (.dwt) with millimetres, a layer scheme, text and dimension styles, and a title block. Model space is 1:1; paper-space layouts carry the sheet and viewports.
285 words, about 1 min032D Geometric Construction and Sketching
Every sketch should be built from a small number of constraints: coincident, horizontal/vertical, parallel, perpendicular, tangent, equal, concentric and symmetric. Use construction geometry and object snaps (endpoint, midpoint, intersection, tangent, perpendicular, centre) instead of eyeballing.
332 words, about 2 min04Orthographic Projection and Multi-View Drawing
First-angle projection places the top view below the front view and the right-side view on the left; third-angle places the top above and the right side to the right. The projection symbol in the title block fixes the system, so never mix arrangements.
355 words, about 2 min05Dimensioning, Tolerancing, and Fits
Dimension from visible geometry and datums, not from hidden lines. Give each feature once; do not repeat a size in two views.
312 words, about 2 min06Sections, Auxiliary Views, and Conventions
A cutting plane line with arrows and letters marks where the object is cut; the section view is labelled with the same letters. Full sections cut through the whole object; half sections cut to the centreline and are used for symmetric parts; offset sections step the cutting plane to pass through features; aligned sections rotate features into the plane; removed and revolved sections show a cross-section without a full view.
344 words, about 2 min07Mechanical Part and Assembly Drawing
A detail drawing defines one part: shape, size, tolerances, surface finish, material, heat treatment and general notes. An assembly drawing shows how parts fit together: overall dimensions, functional dimensions, item balloons, a bill of materials and the fits at mating features.
302 words, about 2 min08Plotting, Output, and Drawing Documentation
Plot from a layout, not from model space, so the sheet, title block, viewport scale and lineweights are fixed. Page setup defines paper size, orientation, plot scale, plot style table and plot area.
330 words, about 2 min