200c f13 Project 1: Orthographics

Screenshot Autopsy drawing.jpg
In this drawing project, students will apply a range of techniques related to orthographic projection, and demonstrate a competency in the depiction of three-dimensional space and form through surface rendering in two dimensions.
Assessment objectives

Assessment objectives include:

  • The demonstration of basic competency in canonical techniques in orthographic projection drawing.
    • Forms depicted are generally drawn with accuracy
    • Forms that intersect the cut plane of each drawing are resolved as solids, with poche areas appropriately depicted
    • Projection is truly orthogonal, with no perspectival projection of objects that appear in elevation
    • Appropriate lineweights and linetypes are used
  • The appropriate selection and skillful application of a combination of surface rendering techniques to convey a sense of the three-dimensionality of the depicted object.
Exercise Type Project
Evaluation Criteria
High Pass
Drawings are complete, correct, and very effectively convey a sense of depth and space.
Drawings are complete and technically correct.
Low Pass
Drawings are complete yet incorrect for any of the following reasons: forms are depicted inaccurately, solids that pass through cut planes are not depicted properly, line work is messy, line weights are incorrect.
Drawings are incomplete, or not submitted on time.
Uses Tool(s) Tool:Drafting Board , Tool:Plotters and Printers
Uses Workflow(s)


Document your plaster model in elevation and section using the six-view orthographic drawing format. You may use the digital model that was produced for 200a to assist you in the production of this drawing, perhaps by making underlay or wire-frame drawings, but the majority of the final drawing will be completed by hand using pencil on drafting vellum.

You will need a minimal hard-line drafting setup in order to complete this project. This should include:

  • A drafting area that provides a smooth drawing surface (using borco ) at least 24"x36" in dimension.
  • A Mayline or t-square for drawing straight lines
  • An adjustable triangle for drawing angled lines and taking angular dimensions
  • An architect's scale
  • A lead holder , appropriate lead, erasers, drafting tape, etc
  • Tracing paper, vellum, and any other appropriate media

Your drawings will be presented as an overlay of three levels of drawing, with sectional drawings overlaid on top of elevational drawings, both of which are produced in pencil on vellum, and are overlaid by a analytic layer which is produced as a digital print on transparent acetate.

Elevational Layer
a six-view orthographic drawing of each elevation of your plaster model, including hidden lines for all relevant edges and hidden silhouette lines for curved surfaces. All visible surfaces should be rendered using one or more of the surface rendering styles described below.
Sectional Layer
six sections of your plaster model, each drawn in a parallel plane to each of the views in Layer 1, and drawn as an overlay. Material which intersects the plane of the sectional cut should be depicted as poche, using one of the styles described below. Follow elevation drawing protocols as described above for all elevational information.
Analytic Layer
A digital print on transparent acetate overlaid upon the drawings listed above, that explains the process by which the surfaces of the physical plaster model were mapped into the digital model.


Pencil on Drafting Vellum, 24" x 36" sheets in horizontal or vertical orientation. Layout to be determined individually, but must conform to the conventions of orthographic projection with alignments and registrations between drawings taken into account. See below for samples layouts.

Surface Rendering Styles

Shade & Shadow - Hatched

Shade & Shadow - Soft

Shade & Shadow - Hardline

Surface Texturing




For the 200c Fall 2013 Semester, this project reviewed in class on the following dates:

Thursday, Sep 12
Project Pinup - First iteration of elevational and sectional layers.
Thursday, Sep 19
Project Redline Pinup - Second iteration of layers listed above, and first iteration of analytic layer
Friday, Sep 20
All drawings due to be turned in before 200a site visit.
Monday, Sep 24
Drawings reviewed alongside Departure One