Mina Zaky
Comentado en los Estados Unidos el 4 de agosto de 2024
Not the best motors if you are wiring them to a regular usb adapter like an iPhone one. It still works for like a desk fan like that, they are pretty quiet, ready to connect.
Reyna
Comentado en México el 25 de julio de 2024
Me gusto los componentes funcionaron a la perfección y quedo muy bien para el proyecto de mi hijo.
PETER MATLOCK
Comentado en Australia el 4 de junio de 2024
When purchasing was told you will only get motors and motor mounts ,so i purchased from another supplier led ,fan blades and connectors, on opening the pack everything displayed was delivered,
M
Comentado en los Estados Unidos el 23 de junio de 2024
I bought these for my students to do a stem project in which they had to build scribble bots. The kids had so much fun. I plan to do this activity every year now. There are so many projects that they could be used for.
Eli Espinoza
Comentado en México el 4 de agosto de 2022
Use el producto para un proyecto escolar con alumnos, llegó atrasado casi 1 semana, pero al hacer el reclamo me indicaron que fue el transporte, y lo enviaron gratis
Alex Nolan
Comentado en los Estados Unidos el 13 de abril de 2019
I bought these for an AP environmental science course I am teaching. Students were studying renewable energy, and we focused on the efficiency of wind turbine systems. I installed one of the motor/generators on the tip of a wooden pylon, then stuck a beveled cork onto the shaft so the cork was able to spin freely and symmetrically. Students were able to attach airfoils (fins) onto a face of an old CD, then snug the CD hole over the beveled cork. I turned a fan on high facing the CD, and attached a multimeter to the leads. Students modified their designs to reach the highest voltage (and therefore efficiency). Although the photo I show indicates a voltage of 1.03V, students were able to generate nearly 2V with the best designs.The motor/generator shaft spins easily with almost no resistance, and even a slowly rotating shaft can generate measurable voltage in either direction. Shaft is rather small and smooth, so you'll need to figure out the best way to attach anything to it. The leads are also made of small-gauge wires which are quite delicate, but they conduct fine.
Donyetta Stevens
Comentado en los Estados Unidos el 18 de julio de 2018
I brought about 15 of these mini motors to make solar cars as a STEM project for my kids (I work at a daycare). They work very well, I had quite a few hit and misses, but these saved me from canning the whole project!They solder well, the wires are very sturdy and already have some wire exposed so you don’t have to strip them. They also run very well with a larger power source, so it won’t blow out. I put the soldered solar panel with motor outside at peak sun for 5 minutes and the motor showed on sign of weakness.I would be careful if you want to strip more of the wire, they are thin.