Blog

Roly Poly vs Strumpy: Which Circuit Cubes Character to Build

Roly Poly and Strumpy are both character builds from Circuit Cubes, but they suit different builders. Compare parts, price, and play style to pick the...

How to Build a Line-Following Robot with Circuit Cubes

Build a line-following robot with Circuit Cubes using the Tracker and Geared Motor Cube. Step-by-step wiring, sensor placement, and testing tips for a...

Brick with Holes 1x12 #3895: Uses in Circuit Cubes Builds

A practical buying guide to the 1x12 brick with holes #3895: when its length and holes solve real build problems, and when a shorter brick is the smar...

Why Do My Circuit Cubes Wheels Slip or Spin in Place?

Wheels slipping or spinning in place usually comes down to a few fixable issues. Learn how to diagnose traction, alignment, and motor problems step by...

STEM Starter Kit vs Robots Rumble Kit: Which to Choose?

Compare the STEM Starter Kit and Robots Rumble Kit on projects, age range, and play style to pick the right first Circuit Cubes kit for your builder.

How to Wire a Potentiometer Cube for Speed Control

Learn how to wire the Potentiometer Cube into your Circuit Cubes build to dial motor speed up and down. Step-by-step instructions and common mistakes ...

Cubit Motor Cube: How Much Torque Can It Really Handle?

The Cubit Motor Cube delivers about 160 RPM through planetary gears. Learn what loads it can drive, when to gear down, and which builds suit it.

Wheel Rim 18 x 14 #55982: Choosing Tires and Wheels

A practical buying guide to the Wheel Rim 18 x 14 #55982: how it fits into a Circuit Cubes wheel assembly, how to match tires to rims, and when to rep...

Bushing #3713 and Pin #3673: Small Parts, Big Difference

A practical buying guide to Circuit Cubes Bushing #3713 and Pin #3673, with clear decision rules for when each small part saves a build and when it is...

Gear 8 Teeth vs Gear 16 Teeth: Which One Do You Need?

A practical comparison of the 8-tooth and 16-tooth Circuit Cubes gears. Learn which one to pick for speed, torque, or a specific build, and why you mi...

NO/NC Switch Cube: What It Does and When to Use It

Learn how the NO/NC Switch Cube works, when to use normally open vs normally closed, and step-by-step ways to add it to your builds.

How to Clean and Store Circuit Cubes Parts So They Last

A practical, step-by-step routine for cleaning and storing Circuit Cubes parts so gears, rims, switches, and batteries stay reliable build after build...