Schmahl Science Workshops educate 32,000 children a year in South Bay schools It’s not unusual for first graders to gather around a teeter-totter. On a recent Friday morning at Hayes Elementary School ...

We’ve seen plenty of people 3D printing custom gears over the years, but [Mr Innovative] decided against an additive process for his bespoke component. He ended up using a simple CNC machine that ...

You can buy gears off the shelf, of course, and get accurately machined parts exactly to your chosen specification. However, there’s something rugged and individualist about producing your own ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.

This article was updated Feb. 28, 2023. It was originally published March 1, 2000. Planetary gears can supply high levels of torque and high-speed reduction. They are also relatively compact compared ...

Introduction: This lesson provides students with a review of simple machines and their tasks. It works best in combination with your lesson on simple machines, or as a review/additional activity.

• Planetary units with helical gears, rather than spur gears, have higher torque capacity and run quieter. • Different manufacturers measure and rate backlash in different ways. • Software tools for ...

It’s not unusual for first graders to gather around a teeter-totter. On a recent Friday morning at Hayes Elementary School in south San Jose, they were doing just that — but indoors. All in the name ...

Click to share on Facebook (Opens in new window) Click to share on Twitter (Opens in new window) Click to print (Opens in new window) It’s not unusual for first graders to gather around a ...