CrocSee Micro 3 Phase AC Mini Hand Brushless Motor Generator Model Science Experiment Teaching Aid Kit DIY

My picture shows it being a generator spun by an and battery screwdriver at about 300 rpm . I also ran it as a motor with the HiLetGo 3 phase brushless dc driver at up to 14 volts. It’s not a powerful motor - I can stop it with my fingers. Great for demo though. I also made a 3 phase full bridge rector for it just to show how that works. All in all pretty neat. I only wish I could see how it’s wired as that would bring it all together as an educational thing.

This thing is smaller than I expected, but if you look at the Amazon page carefully and compare with the LED, you can estimate its size. Or, look at the photo here. I tested it this evening with another product bought on Amazon (a 3-phase motor controller from Sydien), and was able to get the CrocSee Micro 3 spinning nicely. But only after feeding the controller with 12 to 15VDC. Lower than that and I could not get it to spin up and sync with the Sydien controller pictured.Used as a generator, it also works, of course. Comes with an LED plugged into two of the three pins on the connector. If you spin the shaft quickly with your fingers, it nicely lights up the LED in a pulsed fashion. Not terribly bright, but it seems to have a lens to focus and is fine for indoor observation. Unloaded, I measured about 2V AC (peak) with a quick finger-spin. With my DMM, I seem to read around 2K Ohms per winding - but that varies (maybe due to AC noise picked up by the coils from the room lights?).So don't expect much current from the thing used in generator mode. 2V and 2K is 1mA at this speed. 10 times faster and I would expect maybe 10 mA - which seems consistent with the kind of numbers I got when monitoring the full current when operated as a motor (about 30 mA at 50 RPM).Of course Safety should always be considered. You don't want a big high-powered, high voltage, high current device for teaching and experiments. (All my motor experiments on the CrocSee Micro 3 used a low-voltage (< 15V), wupply with current limit)Your mileage may vary of course - but for a nice little motor/generator intended for experiments and as a teaching age, it satisfied my needs - especially at the price !

Helps determine rotation.

Great learning device for children.

These things are just the ticket for building a wind operated weather vane to power led lights. I built mine using 24 led's that require 2.5 (red) to 3.0 volts (green) to operate, using a 6" fan blade robbed from a small electric fan. It needs to run at between 400 to 600 rpm to generate the minimum 3VAC, which is no problem with wind speeds 7-10 mph. Added a rectifier chip to convert the output to DC and might consider a voltage regulator to protect against over driving the led's in higher winds/higher rpms.We'll see how it holds up with today's forecasted 30 mph winds. Looked really cool last night with the green and red led's all lit up. The only concern might be how long the bushings hold up with continuous high speed operation.

Please use slightly thicker wire so the inner connections dont break off from just spinning, was performing as expected to spcecs but the middle wire popped off killing 2 phases leaving me with a single phase to generate power off of, if you do decide to improve upon the motor, let me know about your updated listing here please, id like to use this motor as a part for a small 3 phase power supply, your feedback upon the situation is appreciated, thanks.

This motor controller was bought for a project that will require a well-controlled speed from 1 turn to maybe 100 turns per second (1 Hz to 100 Hz - the same as 60 RPM to 6,000 RPM). The main specifications for the motor rotation are that (1) it is smooth and (2) it must maintain a stable rotation rate as closely as possible. The power of the rotation is not too important other than it can spin a relatively low mass and well balanced load smoothly with high stability for the selected rotation rate range.

Perfect for demonstrating a brushless electric motor! Everyone wanted to spin it to get the light going.Coaching an Odyssey of the Mind where the kids are using electric motors, so I picked this up along with two brushed motors to demonstrate how the technology works and to spark imaginations.Output shaft is long enough to put in a drill, so you can spin fast enough to turn the light on steady.Spinning by hand generates pulses of light, which folds perfectly into the “three conductor” / “speed controller required” discussion.A heavier bell would be neat because it would act like a flywheel and encourage free spin, but this is really perfect as is.Definitely recommend! Fun STEM demo!