Snap Circuit Motor Top

If you've used Snap Circuits before, you probably know the black motor top with the three prongs is a weak point. In my STEM lab, I have hundreds of students cycle through, and those little tops break constantly. So I designed a replacement part and 3D printed it using PETG for added strength.

It’s a tight fit by design. Don’t be surprised if it takes a little effort to get it on. Once it's on, it's not coming off easily, which means it won’t fly across the room or pop off during experiments. That makes it safer and more reliable for hands-on learning.

I'm sharing this for other teachers who are dealing with the same problem in their classrooms or for parents with curious, nerdy kids who love their Snap Circuits sets. It’s a small fix, but it makes a big difference in keeping STEM time frustration-free.