Greetings to anyone still interested in Digicomp II (group activity seems to have slowed). I'm in the unique position of having seen one of those marble ...
Nice to meet someone with similar thoughts. I am building a replica of the Digi Comp II using modern materials. Working prototypes have been completed for the...
I don't understand how that makes a divide. Can you expand on that a little bit? Is it repeated subtraction? Thanks in advance, -- Stephen ... a ... [stuff...
Here is how Digi Comp II divides numbers: First it performs the two's-complement of the accumulator ( A register ). Next it repeatedly add the R register to...
I realize it's old news, but I finally understand Jim's improvement to D-2. That was a great idea to reduce mechanical complexity! The diagram from 10-13-2001...
I've given some thought to improving the DIGI-COMP II without radically changing its operation. Starting with work done by Jim Ubersetzig, the machine can be...
Thanks, I appreciate that. I had a DigiComp I and I always wanted a DigiComp II, but we couldn't afford it. I would love to see a movie posted sometime of...
Hi Everybody -- ... Just slightly off-topic: how fluid logic works. Before electronics was cheap, we had pneumatic logic. There were two kinds: the obvious...
All, I believe I recall reading that fluidic logic and switches are used in environments were electronics is dangerous ... such as around explosive gas. ...
Michael Shapiro
mdshapir@...
Jan 21, 2003 12:58 am
507
In general, I like your ideas. Very well thought out. If I understand you correctly, all balls returning to the top layer are routed to the AUTO/MANUAL switch....
... After a complement operation or an increment operation, the marble passes through the AUTO/MANUAL gate. If someone want's to track the operation and check...
Yes, I understand now. When a student wants to study the result of a 2's complement operation, the student would set the machine to MANUAL mode, then activate...
If you're not too far along in your construction and if you don't mind the slight deviation (improvement?) in operation, you can use any of the ideas I ...
Bob Thank you ! Your ideas for the once gates are wonderful and useful! I plan to use these elements in my duplicate of the Digi Comp II. All the major...
I'd like to know the overall dimensions for the box. From the pictures on the Yahoo site, it appears to be about 20" long. I'd also like to know how much it...
Wow. Those scans really bring back some memories. I was nine when I received a DigiComp I as a Christmas present. I played with it for a year straight,...
I am offering my Digi-Comp 1 for sale on eBay. The kit is missing one of the springs and a couple of the logic tubes. It is otherwise complete. All plastic...
How much are you offering the Digi-Comp 1? Please let me know. William Des Lauriers ... From: Jason Hollister To: friendsofdigicomp@yahoogroups.com Sent:...
I have a spare Digi-Comp1 that I`m willing to sell if anyone is intrested. It is unassembled and as new in box. There are no books or instructions. I would...
Hi Folks, I too grew up with the DigiComp I, back in the late '60's. I've always thought it had a lot of potential... ...if only it worked a little more...
Hi Tim, I don't have that original toy myself. My brother only has it. I want to and am also thinking about building a 4 bits of state Digi- Comp 1. I am...
Hi William, Glad to find a kindred spirit. I have high-resolution, high-contrast scans of the DigiComp I parts. I know there are programs that take "raster"...
In fact, Illustrator can export files as DXF -- Autocad Exchange format which I know CNC Laser cutters prefer (I've had some acrylic gears cut before). ...
Hi Tim, I am still interested in the high-resolution scans with original parts' dimensions (measurements) displayed. My main goal is to stretch the DigiComp...
We are working on getting outlines from our high resolution scans. I just asked my colleague who his laser cutter guy is. He made the body of a robot out of...
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