Hey Karen, totally get where you’re coming from — GD&T can be a weird gap between theory and real-world application, even at the grad level.
If you’re mainly looking to
apply GD&T in design work (rather than just pass a university course), I’d actually lean toward a
self-study course. University courses can sometimes stay quite theoretical, while a structured online program lets you move faster and focus on the practical stuff like
datum strategy, MMC/LMC modifiers, and functional tolerancing.
I’ve personally had good experience with Excedify’s GD&T Training — it’s built for engineers coming from a CAD background and uses animated examples to explain real parts, not just textbook figures. It also follows the
ASME Y14.5-2018 standard, so it’s up to date.
If you go the self-study route, I’d suggest combining:
- A solid video-based course (like Excedify or GD&T Basics)
- The ASME Y14.5-2018 standard as a reference
- And your own CAD models for practice
That combo usually gets you further, faster, and more job-ready than a semester-long academic course.
Good luck catching up — you’re definitely not behind, by the way. Most practicing engineers are still learning GD&T on the job!