The Hackaday retro edition hasn’t been updated in a while, and for that I am very sorry. Still, digging through my email reveals quite a lot of very cool retro computers that were able to load the retro edition over the Internet, and it would be a terrible shame to let these awesome submissions die in my inbox. Without further adieu, here are the best retro computers that have been sent in over the last few months:
[Scott] got his Mac SE to load up the retro edition. This was a chore; after getting a serial connection from his SE to the outside world, [Scott] realized he didn’t have a browser on his retro mac. 800k drives are a pain, it seems. He eventually got everything running in a terminal session, and the retro edition loaded beautifully.
How about another Mac? This one is [Raymond]’s Mac II, the first not-all-in-one Macintosh. NuBus Ethernet card, Netscape 2.02, and 26 years of history behind this machine.
Here’s a weird one: it’s a Siemens interactive display originally used for a building management display. It has a 10 inch touch screen display at 640×480 resolution and runs Windows CE 5.0. After fiddling with some files, [Nick] managed to get the networking running on this machine and tried to load Google. Anyone who has played around with the class of machines we seen for retro submissions knows what happened next (nothing), but luckily [Nick] remembered Hackaday has a retro site. The rest is history.
[Kyle] has a really cool box on his hands. It’s a Compaq 486SX overclocked from 25MHz to 33MHz. 20 Megabytes of RAM, network card, and a Soundblaster 16 make this computer from 1993 a very respectable box for old DOS gaming. It can also browse the web with Arachne.
Finally, [cnlohr], the guy who
made his own electron microscope never mind, he’s still awesome and can manufacture glass PCBs at home, found an old green screen CRT while cleaning out a friend’s place. He hooked it up to one of his glass PCB AVR microcontroller things and did the usual text terminal fare; ASCII Star Wars with telnet and using lynx to load up the retro site. It’s only a 48-column display, but the retro edition is surprisingly readable. Very cool.
It’s not his first Internet radio, but [Matthias]’ modernization of a classic Bakelite radio is a real, functional piece of art. Not only does it retain the look of an old radio, it also has the capability to listen to streams and his entire MP3 collection through the Internet.
For the software, [Matthias] used jquery to pull down web radio streams and soon figured out how to play all his MP3s through Google Music. This, and a web-based remote for his mobile device, allows the new old-school Internet radio to play everything [Matthias] would ever want to listen to.
The controls for the radio are rotary encoders, with indication provided by a really fabulous numbered LED display (seen above) replacing the 70-year-old tuning dial. These numbers indicate both the current Google Music playlist or the currently playing Internet stream, depending on what mode the selector knob is at.
It’s a beautiful piece of work, and the knobs and dials look like something that could have come from a real 70-year-old radio. That’s a win in our book.
Glass work is always a feast for the eyes, especially when it is hot glass. Watch as a Nikkor lens is made from beginning to end. It is wonderful to see the care taken to search by eye for defects, refraction issues, clarity etc. It may just be for the video, but it seems that the workers truly do take pride in their product.
What I found somewhat surprising was the amount of work that went into refining the glass BEFORE it was even put into a lens mold. I would have assumed that much of the work would have come after.
This jamming gripper design is the simplest we’ve seen so far. It uses a syringe to generate the suction necessary for the orange appendage to grip an object.
As with previous offerings this uses coffee grounds inside of a balloon. When pressed against an object the grounds flow around it. When a vacuum is applied to the balloon those grounds are locked in place, jamming themselves around the item for a firm grip. About a year ago we saw a hardware-store grade design which used a vacuum pump for suction and a shower head as the gripper body. This time around the plastic syringe serves as both.
The plastic tip was cut away and the resulting hole covered with a cloth to keep the coffee in place. After installing the coffee-filled balloon the grip can be operated by pulling the plunger to lock the grounds in place. It’s not going to be as easy to automate as a pump-based rig. But if you just want to toy with the concept this is the way to go.
Continue reading “Dead simple jamming gripper design”