General > General Technical Chat
Sharing some project planning phase: A (digital) ELECTRO-MECHANICAL Network
RJSV:
One other thing, is that the direction separating is done after a bit of gear down, like divide by 18 or something, before the motor has to push on that bracket and little inter-gear.
RJSV:
Moving to gears, the only sane alternative, having stage after stage, each absorbing the motor's energy.
The TOY DOG gear box has interesting switch, but not offering full comutating function.
One possible build has that (toy dog) style switch, for moving the toggle bracket only. Then, another copy rides on that movement. But an indent or click spring would need about the same, forces, for the simple use of the commutating path switch
But the rubber wheel versions, provided a much-needed design optÃon for reset of 'A' segment, in a previous stage.
Photo shows, not too hard, to get gears to 'mesh', pushing the two together. Photo shows the toggle bracket went outside normal bounds, because gear box is opened.
RJSV:
In this model view, symmetry of the 4 gear wheels makes for repetitive design. Looking diagonally, lower right, up towards upper left corner wheel, is how that path switch is acting.
(Sorry, my layout needs tweaks, for having those 2 blue colored gears touching.) That swing, of the toggle between gear wheel outputs, is approx 60 degrees, in 250 to 400 mSec.
Labeled 'L' means 'Local' input.
The 'CH' is 'Chain Input', that will be 'A', 'B', or 'C'.
This also shows, the Footprint, reader can imagine 3 of these flat 'wafer' style package.
Footprint, input or output, is 2 by 6.
RJSV:
The view (previous) is simplified, but also first shown as the 3PDT Switch, that it is. Next, is the particular details for this network, of series connected switch boxes.
The layout, for the switch segments, (A, B, C), is non-trivial, very confusing in a 3-D way. So I'm up to it, haha...
For reference, consider the 3-layer switch as a '3 floor apartment':
Say, you lived on 2nd floor, each floor has two apts.
" To RESET the relay switch, " you'd say, "...go upstairs, and down (to Apt 3b)."
" To SET, the switch, that's right next-door" (apt 2b).
At any rate, a 3 layer switch assembly, is not that hard to assemble. A simple pulse exchange, or opposing phases, gets the network access done, and proceeding at the next 'station', each two pulses, does that phase pair, each per station.
coppercone2:
Do you think that these kind of mechanics were exemplified by the successful deployment of the James Webb Telescope? It had many single point failure points and I bet NASA also used some very creative mechanisms... the stuff used to deal with the sun shields is probobly interesting.. to anyone doing this kind of mechanism research, it may pay off to try to find details on the Webb telescope.
Well, it makes the thread even more interesting anyway.
Usually when you get the mechanical version of something complex, it ends up being more popular and interesting then the electrical version.
I find it interesting that this thread was brought about by an idea of relativity and I wonder if this mechanism might have applications as some kind of gravitational distortion correction mechanism in telescope parts (on the battlestar galactica of course), NASA got my creative juices flowing. Hope it gets to L2 good
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