GeniusEE

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GeniusEE

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  • 04.07.2016
  • Free PCB ECAD: The Ultimate list
  • You can't edit comments a few minutes after posting... I see you did list it on page 3. One interesting distinction with Target3001! is that it'll generate G-code for isolation milling... Not sure any others integrate that capability.
  • 04.07.2016
  • Free PCB ECAD: The Ultimate list
  • Sandboxes are fine until the cat pees in them. There's no such thing as security or privacy with anything you run or put in the Cloud/Web. Unless it's Open Source and you compile it yourself, you are leaving yourself wide open for a honey-trap. Supposed high security transactional systems seem to get hacked all the time - is it worth hacking a CAD database of designs worth $millions by those lacking in creativity and innovation? A good Freebie to add to your list is Target3001! (not my punctuation - product name): http://server.ibfriedrich.com/wiki/ibfwikien/index.php?title=Editions_and_Prices_V18
  • 08.12.2015
  • Honey, I retrofitted the car's interior lights with LEDs
  • And how, exactly, does this wonder of engineering improvement you've embarked upon reduce the chance of a dead battery - the problem you were trying to solve'? Massive engineering FAIL, Michael. Maybe even cause a cyclist fatality with those dim open-door SAFETY lamps. One more sale to validate an idiot's (if ambiguous, not you) business model - please let Darwin do his job
  • 10.14.2014
  • Teardown: Gigabit Ethernet switch shut down by lightning strike
  • The plastic sheet (I'm surprised there isn't PowerPoint on it from the meeting they took it from) is there because the vent slots in the metal case are too wide to pass UL. It also makes that vent next to useless (strange that there isn't a heatsink on the standing power transistor). Pass it, ship it - pretty shady practice, IMO. Looks like a bog standard flyback DC-DC, fronted by a LCLC EMI filter, a four diode bridge rectifier, a fusible device (resistor or fuse, maybe under that goop or can't see it because of the crappy camera angle) and a surge protector (the diode standing vertically with the heat shrink on it next to the AC entry socket). Knowing that, you can probe the supply with ohmmeter, voltmeter, and a scope, in that order and find the fault pretty quickly.
  • 09.16.2014
  • Hackspotter: World's most dangerous LED display caught at Maker Faire
  • HACKS OR HACKERS? There's no excuse for spending a couple of hours building a modicum of safety into a contraption like that, other than perhaps building a prop for the techno remake of Fargo. Three lexan sheets, even if on standoffs vs blown bubbles and only an eight inch thick, would both eliminate the danger of this human deli-slicer and protect spectators from ejecta. There are no excuses for this kind of hack job and show organizers are negligent in allowing such a contraption to spin up. -Mr. Cranky
  • 08.01.2012
  • Pathways to manufacturing growth available and achievable--Reality or wishful thinking?
  • Tax the rich? Pay any taxes at all would be nice. Offshore revenues are tax deferred until the money comes back, so it isn't. As far as skilled workers go, there are tons...just that nobody is willing to work for free while their discounted salary difference gets pocketed by execs and stockholders. Amazing how gullible engineers can be in believing the sleight of hand that comes from industry lobbyists. Drill for oil on public lands, then sell it to me for $5/gallon? Corruption at its finest.