Andrew Morris had a problem with a small rotary tool built in China. The tool fit nicely in the hand and was useful for precision cutting, drilling, and polishing. Yet for delicate work, the tool was in bad need of a speed regulator.
Andrew had developed an analog motor speed regulator back in the mid-1990s, but this time, he wanted the benefits of a digital regulator. The digital version was just as efficient, but it was less expensive to build and easier to assemble. The digital circuit also provided more torque.
Andrew Morris' microcontroller-based DC motor speed regulator brings control for delicate work.
Cool that someone did this, but if I'm not mistaken these types of tools are readily available for purchase. So NOTHING NEW HERE. Can't we find more interesting and unique gadgets to feature in this segment. Maybe I'm just being a curmudgeon.
I have not seen a drill motor that is so easy to hold in the hand that has decent speed regulation and torque. I have a Dremel Moto-Tool that is great for big jobs, but it's awkward to use for delicate work. The Chinese mini-drill is dirt cheap and with my speed regulation technique, a piece of useless Chinese junk has been turned into an indespensible tool. I stand by its usefullness.
I own a cordless, three-speed electric floor sweeper that has my speed regulation system in it, so somebody else has found my invention useful. IMO, there is no cheaper way to regulate the speed of a small DC motor. I helped a guy in India tune the software program to run a larger motor for a CNC machine he was building. It was working for him, the last time I talked to him.
Followers of Design News’ Gadget Freak blogs will have the opportunity next week to take home a wireless remote demo package that can be used to build garage door openers, tire pressure monitors, keyless entry systems, and much more.
The 2015 Gadget Freak of the Year goes to the DDV-IP -- or, a Drink Deliver Vehicle – Inverted Pendulum. The gadget is a two-wheeled self-balancing robot that can deliver cold beverages to thirsty folks on a hot summer day. A wireless RF remote enables manual control of the device beyond the act of self-balancing. All of the features of the DDV-IP result in an effective delivery vehicle while providing entertainment to the users.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.