Massachusetts Institute of Technology
Sign in

Videos by scolton (64)

Brushless Motor Control

Added over 6 years ago | 00:01:10 | 24059 views

This video shows a significant difference between square-wave commutated and sine-wave commutated brushless motor drive. The motor (from the B.W.D. Scooter project, can resonate with the scooter frame at certain speeds when driven with o...

Custom ESC: Field Weakening Test

Custom ESC: Field Weakening Test

Added 6 years ago | 00:01:13 | 11889 views

This is a test of the brushless ESC I built for my 1/10-scale RC car. It uses sinusoidal AC commutation and field-oriented control, which dynamically adjusts the timing of the motor to optimize torque. As an extension of this control met...

LEAF Motor: Spin-Up

LEAF Motor: Spin-Up

Added over 6 years ago | 00:00:56 | 11748 views

This is the very first spin-up test of the Less Epic Axial Flux (LEAF) motor, to about 1500rpm. The LEAF motor is a "DIY" coreless axial-flux brushless motor. More information. The LEAF motor is the end result of a cheap set of wedge ma...

2.007 Final Round - 2008

Added 8 years ago | 00:01:42 | 9553 views

The final match of the 2008 2.007: Design and Manufacturing I robotics conest, between Ethan Huwe and Greg Tao. Ethan's machine had previously achieved the two highest scores in the competition, but Greg's awesome strategy of scoring qu...

Pirate Radio Control: Custom RC for a 4WD 1/10th Scale

Pirate Radio Control: Custom RC for...

Added over 6 years ago | 00:01:49 | 11985 views

This is the first test drive of my modified 1/10th scale RC car. It can reach a top speed of nearly 40mph with this gearing. It does 0-30mph in 2.2 seconds. More information. The car is a Team Associated TC4 RTR. Modification I made inc...

Edgerton Center HSV: Arrows and Fruit

Edgerton Center HSV: Arrows and Fruit

Added over 6 years ago | 00:01:54 | 18850 views

Some high speed video of arrows hitting (and missing) fruit, taken in the Edgerton Center Strobe Lab with a Phantom high speed video camera.

RC Car Tire Spin, 600FPS

RC Car Tire Spin, 600FPS

Added over 6 years ago | 00:00:10 | 19322 views

Here's a quick video of my new toy, a 1/10th scale 4WD RC car. The video is shot with a Casio EX-F1, (a hand-held high speed video camera for under $1,000).

B.W.D. Scooter Custom BLDC Motor - ...

Added 7 years ago | 00:00:22 | 24702 views

This is a speed test of the B.W.D. scooter's first custom-built hub motor. The scooter is this year's Edgerton Center Summer Engineering Workshop project. B.W.D. stands for either "both wheel drive" or "brushless wheel drive," since the ...

2008 Summer Project Hint

Added 8 years ago | 00:01:07 | 19933 views

The team that created a DIY self-balancing scooter in 2007 is gearing up for another summer project. Besides being useful for creating a project hint, the laser cutter/engraver is a really fun machine to watch. It uses a 150W CO2 laser ...

B.W.D. Scooter Custom BLDC Motor - ...

Added 7 years ago | 00:04:03 | 30038 views

Fast-forward to 1:50 to see it spinning! This is test #1 of the B.W.D. Scooter's first custom-built motor. The scooter is this year's Edgerton Center Summer Engineering Workshop project. B.W.D. stands for either "both wheel drive" or "b...

Custom Brushless Motor Controller T...

Added 7 years ago | 00:01:09 | 16409 views

I've taken my recent experiments in 3-phase motor control hardware and put it into a nicer package. The controller is 100x80x30mm, not including the fan, built with IRFB3207 MOSFETs, which can handle quite a lot of current as demonstrate...

B.W.D. Scooter Test Drive #2

Added almost 7 years ago | 00:02:29 | 28929 views

The B.W.D. Scooter is an electric kick scooter with Both Wheels Driven by custom-built brushless DC hub motors. For more information, visit: http://web.mit.edu/first/scooter The hub motors built into each wheel are 3-phase, 14-pole...