EBA QuickLearn - Engineering Tips
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Understanding thread callouts helps avoid machining errors and ensures proper fit during assembly.
Metric threads use pitch, while imperial threads use TPI.
Always include thread depth for tapped or partial threads.
Quick Quiz:
What does “1.5” represent in M12 × 1.5?
Drop your answer in the comments.
Thread callouts are a fundamental part of mechanical design, and getting them wrong can cause delays, scrap, or assembly issues.
Here’s the quick breakdown:
• Metric threads use pitch (distance between threads)
• Imperial threads use TPI (threads per inch)
• Always specify depth for tapped or partial threads — it defines engagement
Quick Quiz:
Why is depth important in thread callouts?
Drop your answer in the comments.
02/20/2026
If you work with drawings from different regions, you must know the difference between 1st and 3rd angle projection.
One symbol in the title block can change the entire layout.
1st Angle Projection (Europe & Asia)
- Object sits between you and the projection plane
- Views flip to the opposite side
- Top view → below
- Right view → left
3rd Angle Projection (US & Canada)
- Projection plane sits between you and the object
- Views stay on the same side
- Top view → above
- Right view → right
QUIZ TIME
1) In 3rd angle, the plane is:
A) Behind the object
B) Between observer and object
C) Not used
2) In 1st angle, the top view appears:
A) Above
B) Below
C) Right side
Drop your answers below.
02/19/2026
Thread Measurements & Anatomy — The Fastener Fundamentals
Understanding threads is essential whether you're designing parts, checking tolerances, or selecting the right bolt for an assembly. This QuickLearn breaks down the two major measurement systems and the anatomy behind every thread profile.
🔹 Thread Pitch (Metric)
Distance between adjacent thread peaks, measured in millimeters.
Example: M10×1.5 → 10 mm diameter, 1.5 mm pitch.
🔹 Threads Per Inch (TPI)
Number of thread peaks within one inch.
Example: 1/4"-20 UNC → 20 threads per inch.
🔹 Thread Anatomy Essentials
- Pitch: Peak‑to‑peak spacing
- Major Diameter: Largest diameter of the thread
- Minor Diameter: Smallest diameter
- Crest & Root: Top and bottom of the thread
- Depth: Vertical distance from crest to root
- Pitch Diameter: Where the thread thickness equals the gap
- Thread Angle & Helix Angle: Define the geometry and engagement
These fundamentals help you read specs, choose the right fastener, and avoid mismatches in assemblies.
01/21/2026
10 Common Machine Elements Every Engineer Should Know
Keys, couplings, bearings, seals — these are the building blocks of mechanical design.
Understanding what they do, the types available, and where they’re used will make you faster, more confident, and more effective in the field or in CAD.
Share this with a teammate or student who’s learning machine design.
Geometry shows up in almost every engineering project — pipes, pulleys, tanks, ramps, supports, robotics, you name it.
These 10 formulas help you size components faster, double‑check your work, and avoid design mistakes before they happen.
Whether you're a student or an early‑career engineer, this breakdown is worth saving.
Simple formulas. Real engineering applications.
01/05/2026
Geometry shows up in almost every part of engineering — from CAD sketches to hydraulics to structural design.
But most beginners only learn the formulas… not where they’re actually used.
This guide breaks down 10 essential geometry formulas, what each variable means, and the real engineering situations where they matter.
Whether you’re sizing a tank, checking a diagonal, calculating a slope, or designing a support, these are formulas you’ll use over and over again.
Save this post for your next project — and share it with someone learning engineering.
Most engineers forget these formulas… but you’ll use them for the rest of your career.
Here are 10 engineering math hacks you should know — fast, practical, and easy to remember.
These formulas are used in real-world engineering every day:
• Fluids, HVAC, and materials
• Hydraulics and structural loading
• Bolts, motors, and rotating equipment
• Welds, beams, and shafts
• Electrical circuits and motion systems
1️⃣ Density = Mass / Volume (lb/ft³)
2️⃣ Pressure = Force / Area (psi)
3️⃣ Torque = Force × Distance (ft·lb)
4️⃣ Stress = Force / Area (psi)
5️⃣ Shear = Shear Force / Area (psi)
6️⃣ Power = Work / Time (ft·lb/s)
7️⃣ Voltage = Current × Resistance (V = I × R)
8️⃣ Force = Mass × Acceleration (lbf = lb × ft/s²)
9️⃣ Efficiency = Output / Input (unitless)
🔟 Distance = Velocity × Time (ft = ft/s × s)
Save this video — you’ll use these formulas forever.
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01/02/2026
Quick formulas. Fast decisions. Cleaner calculations.
Perfect for students, interns, and working engineers.
1️⃣ Density = Mass / Volume (lb/ft³)
2️⃣ Pressure = Force / Area (psi)
3️⃣ Torque = Force × Distance (ft·lb)
4️⃣ Stress = Force / Area (psi)
5️⃣ Shear = Shear Force / Area (psi)
6️⃣ Power = Work / Time (ft·lb/s)
7️⃣ V = I × R (Voltage) (volts = amps × ohms)
8️⃣ F = mass × acceleration (Force) (lbf = lb × ft/s²)
9️⃣ Efficiency = Output / Input (unitless)
🔟 d = v × t (Distance) (ft = ft/s × s)
Save this for later — you’ll use these forever.
01/01/2026
Ever struggled to type engineering symbols in your reports or CAD annotations?
This EBA QuickLearn visual guide gives you 10 essential ALT codes every engineer should know.
From Δ (change) to ∠ (angle), you’ll never have to Google them again.
📸 Save the photo, share with your team, and tag someone who needs this shortcut boost.
Let’s make engineering communication smoother, one symbol at a time.
If you’ve ever needed to type engineering symbols like Δ, μ, or ∠ and didn’t know how, this quick guide will make your life easier.
These 10 ALT codes help you type the most common engineering symbols without searching online or copying from Google.
Perfect for students, engineers, CAD users, and anyone writing technical reports.
Save this post so you always have these shortcuts handy, and follow EBA QuickLearn for more practical engineering tips.
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