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The first step of a Journey to a Journeyman
The first step to machining a part is to understand all of the part's specific requirements. Machinists employ blueprint reading skills while interpreting mechanical or engineering drawings to obtain the part's specific requirements. The specific requirements of each part will dictate how a machinist will go about producing the parts using machine tools.
While completing the first project, apprentices will learn the foundations of blueprint reading skills that machinists utilize daily to obtain part's specific requirements. The same foundational blueprint reading skills will be utilized in all subsequent projects during the apprenticeship. However, these are not the only blueprint reading skills that you will learn. Each subsequent project will incorporate the addition of new blueprint reading skills as projects build in complexity.
This page will be utilized to present and maintain information regarding Project 1 and the blueprint reading skills learned through this project.
Welcome to Project 1
Part Name: Step Block Base Drawing: 2021_001 Revision: A
p1d1.PDFProject 1 will introduce basic concepts of Blueprint Reading and provide an opportunity for apprentices to learn and understand a few of the most essential blueprint reading skills that will be used repetitively through out the apprenticeship and as a machinist.
Border Lines
Border Lines
Borderlines are very thick, continuous lines used to show the boundary of the drawing or to separate different objects drawn on one sheet. They are also used to separate the title block form the rest of the drawing.
Object Lines
Object Lines
A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object.
Center Lines
Center Lines
Center lines are used to indicate the centers of holes, arcs, and symmetrical objects. They are very thin (size), long-short-long kinds of lines.
Dimension Lines
Dimension Lines
Dimension lines are thin and are used to show the actual size of an object. There are arrowheads at both end that terminate at the extension lines.
Extension Lines
Extension Lines
Extension lines are also thin lines, showing the limits of dimensions. Dimension line arrowheads touch extension lines.
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