A machinist turns a drawing into a real metal part that fits within thousandths of an inch. You read blueprints, pick tools and speeds, set up lathes and mills, run CNC programs, and measure every part to prove it is right. Why it matters: tolerances are the heart of the job, so you learn to measure and read prints first, then manual machines, then CNC and CAM. Each step builds on the one before. Most people enter with a high school diploma or GED and then a community college certificate or an apprenticeship, and shops hire entry-level operators who show mechanical sense, shop math and care ab
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Stage 1 of 4 · about 10 weeks
Learn shop safety, shop math (fractions, decimals, trig for right triangles), blueprint reading, GD&T basics, and how to use calipers, micrometers and height gauges correctly. Practice reading 10 simple prints and measuring 20 different objects, and check your readings against a gauge block or pin gauge.
Shop safety
Machines can injure you in a split second. Employers screen for safety habits first because one careless act can cost a hand, an eye, or a job. Safe habits are also the fastest way to earn trust on a new shop floor.
Shop math
Every cut, setup, and inspection involves numbers. A wrong decimal can scrap a part, and trig lets you find angles and positions that a print doesn't give directly.
Precision measurement with calipers, micrometers, and height gauges
A machinist is only as good as their measurements. If you can't trust your reading, you can't tell if a part is good. Employers test this early, often by handing you a micrometer and a part.
Blueprint reading
The print is the contract. It tells you exactly what to make and how close it must be. Misreading it means scrapped material and lost time, so reading prints well is a skill every shop hires for.
GD&T basics
Modern prints, especially in aerospace and medical, use Geometric Dimensioning and Tolerancing to say how a part must fit and function. Understanding the basics lets you read those prints and prepares you for the inspection work you'll do later.
Then 3 more stages (about 134 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.