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| Home Brew Analog Computer System |
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| robrenz:
Very nice! I am still following watching all this |
| GK:
Hey, thanks for noticing! ;D |
| GK:
Wow, found lots more chatoic stuff ripe for analog simulation here: http://ibiblio.org/e-notes/Chaos/contents.htm Think I'll wire up a Hénon map simulation next. Would also like to get a slow growing Mandelbrot happening on a the display of a storage oscilloscope (my BWD 845 should do) Also, besides the Lorenz Attractor and the Rössler Attractor (the latter of which I only discovered several days ago) does anyone know of any other chaotic systems that exhibit oscillation around one or more attractors? |
| c4757p:
Awesome! That stuff brings back pleasant (hey, I'm not insane!) memories from when I was majoring in math. I might have to dig into some of it myself. Hell, someday I might embark on a similar project. I've always wanted to build 1) an analog computer and 2) a digital computer. |
| GK:
Can anyone out there offer any advice on technique for accurately drilling holes in 1/8" thick aluminium (19" relay rack) panels? To save some bucks I'd like to buy blank (Hammond) panels and drill them myself, instead of having pre-drilled panels made by Front Panel Express. The majority of the panels needed (to fill two full height relay racks) are either 2U or 3U with a 300mm-wide section filled by a grid of 4mm banana panel jacks/sockets on a 15mm x 15mm grid spacing. Each banana jack requires a 7mm diameter hole. However a panel ends up looking like a dogs breakfast if the holes of the banana jack grid are not very accurately positioned. My drill press is a floor standing pedestal unit. I've tried clamping down the work to the table to limit movement and vibration whilst drilling but the table isn't super rigid itself. It just seems to be a real bother to drill a panel hole of ~7mm diameter with a standard twist drill with anything better than +/-1mm accuracy in position (which is waayyy too loose a tolerance for a good looking panel). |
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