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Recent content by jlcortex

  1. jlcortex

    AC dynanamometer control loop?

    Hello, I am planning to build a dynamometer like this one, i have experience with dynamometers, we have make software for engine test dynamomemters with eddy current brakes but never with AC asynchronous motors. I know i need a vector control VFD, not v-f VFD, but my question is about how...
  2. jlcortex

    CNC machining a mold for fiberglass, which material?

    I would like to make this work: http://www.smartfish.ch/art/HyFish_G2_Milling.jpg direct negative mold cnc machining with a vertical machining center which material are they using? I have found machinable wax (http://www.machinablewax.com/) but i am not sure about this wax could be polish...
  3. jlcortex

    incredible weight in flying wing UAVs

    Hello, I have found a flying wing uav with incredible flight characteristics for my experience. 7Kg for a 1400mm and 160km range (inspector 301) 3.2kg for 1320mm (deserthawk) I used to fly RC airplanes and it is dificult to imagine to load with 7kg such small aircraft! My question is this...
  4. jlcortex

    Cylinder head design in solidworks, help!!!

    Hi! I am trying to design a single cylinder head for a 250 racing engine. I am using solidworks, i have make some drawing but i can not get good results. External shape is not problem but i want to get all internal shapes (water cavities) now i am trying to design all head shapes with...
  5. jlcortex

    Instrument control toolbox UDP problems!

    Hi, i need help please! i am trying to connect flightgear to matlab throuhgt UDP in order to test the PID closed loops of my autopilot. I have noticed than i am not receiving data from flightgear to matlab, in the other way it works ok. I have simplied the problem to next experiment: I have...
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