Nov 252018
 

One of the goodies from the Hackaday Superconference was an Adafruit HalloWing. And I thought: surely a Jolly Wrencher case must be made for this skull-shaped circuit board! How has no one made of these yet?

So I remixed an existing clip-on case that fits the included battery (Thanks DoctorWhich!), added the Jolly Wrenches and printed it out. It came out pretty great. Though now I wish I had some black PLA.

Here’s a video showing it:

See also:
https://www.thingiverse.com/thing:3238536
https://hackaday.io/project/162452-hackaday-hallowing-case

 Posted by at 2:05 pm
Apr 112009
 

I’ve been exploring various types of gearmotors. DC motors by themselves spin too fast and have low torque. Gearmotors are motors with a gearbox that slows down the high speed of the motor and produces higher torque. Most gearmotors are pretty expensive though. I want a really cheap, almost throw-away, source of gearmotors. It turns out cheap servos can be made into continuous rotation gearmotors.

Modding servos for continuous rotation is not a new hack. You can find many examples of it. You can even buy a nice continuous servo made by Parallax. But I wanted a micro servo version. I’ve been getting cheap servo motors from Hobby City, and they have several super-tiny servos for less than $4. The ones I use here are the Hextronic HXT500 available for $3.49 each.

Here’s how to modify one of those servos to make it into a tiny little gearmotor.
Continue reading »

 Posted by at 12:10 am
May 312006
 

ThingM‘s own Mike Kuniavsky was featured on BoingBoing today. Woot!

Mike spent some time getting a Gyration Air Mouse to work on Mac OS X as a gestural input device. The Gyration stuff is interesting because it’s based upon a two-axis gyroscope. It’s not accelerometer-based like some of the old game console controllers (or like the Sudden Motion Sensor in the new Mac laptops)

I got a few of those mice as well to experiment with, thinking it would be a cheap way to acquire a gyro, since dual-axis gyros are pretty pricey.

Except when you take it apart, it turns out the gyro is huge:

The gyroscope is the large silver cube. This is no MEMS device like all the other gyros, but some honking steampunk-like device that measures Coriolis effect using electromagnets.

I’m considering talking to Gyration about getting a few OEM samples of their gyro for non-mousing applications. Or maybe just get the datasheet from them and canabilize some Air Mouses.

 Posted by at 5:33 pm
Mar 012006
 

I recently obtained a ReadyNAS NV by Infrant, on the recommendation of my friend Ben Franco, who’s done much research on large disk arrays. The ReadyNAS pretty much rules. I think my long-standing storage woes may finally be over.

readynas status screen

It’s a dedicated Network Attached Storage (NAS) box that does RAID-0, RAID-1, RAID-5, or a proprietary combo of the three called “X-RAID”. X-RAID allows you to start with one disk, move to two, then three, then four, all without rebuilding the RAID or changing RAID levels.

Continue reading »

 Posted by at 12:38 pm
Mar 122004
 

I read this on Slashdot, so it must be true:
T-Mobile will allow their phones to be unlocked after about three months of service. Just send email to simunlock@t-mobile.com with your name, phone number and IMEI number and they’ll hook you up.link

 Posted by at 8:15 pm