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  • Users: MichaelkSA
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  1. MichaelkSA

    Resetting/removing all display properties in an assembly

    I have an assembly where various parts have been assigned various different display colours. Is it possible to remove all these properties in the entire assembly in one go? Regards ------------------------------------------ Here's looking at you, looking at me, looking at you
  2. MichaelkSA

    Setting preference for which surface gets displayed when surfaces intersect

    Using NX 9. When I do boolean operations to add components like windows onto a body for visualisation purposes, there seems to be conflicts in which of the components actually gets displayed, which results in 'ugly' surfaces, as seen in the attached image. Is there a way to set which component...
  3. MichaelkSA

    Fillet in skecth does not snap to any feature

    When I am in sketch mode and insert a fillet, the cursor does not snap to any curve or point in the sketch. This is quite frustrating as I don't necessary want to specify a radius for the fillet. Is there a obvious reason for this to be do and is there a way around it? Thanks in advance...
  4. MichaelkSA

    Boolean opperations on surfaces

    Attached is a simple model of two intersecting sheet bodies. I want to know whether it is possible to eliminate all surfaces located in the intersecting volumes between the two sheet bodies and basically be left with only that which you can see from the outside of the surfaces? I have tried a...
  5. MichaelkSA

    Automatic parameter adjustment to match some criteria

    I am using NX9. I want a body to have a certain prescribed volume by automatically adjusting some parameter. Is this possible? I suspect it might have something to do with the 'Requirements' function in parameters? But I am not sure how to implement it...
  6. MichaelkSA

    Cleaning up an imported file

    I have a perfectly smooth solid body that was imported from a Parasolid. The problem is that the body consists of a bunch of different surfaces, or artifacts (the body is actually a solid body, so it is not technically surfaces, but it looks like that). I want to use this body for CFD but the...
  7. MichaelkSA

    Making components transluscent in an assembly

    I have an assembly that I want to show some components in a translucent/transparent manner so that you can see into the belly of the component while still seeing the outer shape. I found a like that refers to 'styles' menu or by going View->Style and assigning some colour to a component, but I...
  8. MichaelkSA

    Updating of splines drawn through curves from a file in NX9

    I have a text file with a bunch of points in 3D space. I can import these points into a model by doing File->Import->Points from File. I them fit a spline through these points by going Insert->Curve->Fit Curve and then specifying the imported points in the 'Groups' tab in the Part Navigator...
  9. MichaelkSA

    Fuselage modelling techniques

    I want to build a CAD model of a fuselage and have been playing around with some success, but I have 'gone in blind' and am not sure whether the technique I am using is the best or commonly used. Is there a preferred method to model the shape of a fuselage? Some additional info: The fuselage...
  10. MichaelkSA

    Creating solid from surfaces

    I know that if you 'sew' different surfaces together and if they form a water-tight body, the resulting 'sew' should be a solid. The problem is, even though the surfaces I sew together seem to form a water-tight body the result I get is still a sheet body and not a solid, no matter how high I...
  11. MichaelkSA

    Surface wrapping of streamline body

    I am new to surface modelling and have successfully 'wrapped' most of a streamline body using the 'Studio Surface' function. I am however running into problems when trying to 'wrap' the nose section. I am attaching the file and would appreciate any help. I am not familiar with the different...
  12. MichaelkSA

    Trimming curves - Siemens NX

    I have a a set of curves that when taken in parts form the perimeter of a body of revolution. The curves however overlap at places and I need to trim away parts of the curves so that I am only left with the parts that I require to revolve the body of revolution about the central axis. I have...
  13. MichaelkSA

    Best material for IR transparency in the 7.5 - 13.5 micrometer range

    I want to build a camera gimbal dome to cover a flir Tau IR camera (7.5-13.5 micrometer band, or Long Wavelength IR) as well as a visible spectrum camera. What would be a good polymer to use for such an application, taking factors such as impact resistance and manufacturing difficulty into...
  14. MichaelkSA

    UAV landing load factor

    I have to design a forward looking camera gimbal to be mounted on the nose of a UAV. How would I go about calculating the load factor experienced by the vehicle during landing? I am sure the landing load factor would be much higher than any loads experienced during manouvres, is this a valid...
  15. MichaelkSA

    Afterbody

    What exactly is meant by the afterbody of an aircraft. My impression is that it is everything behind the nose, excluding the wings, and will thus include the fuselage and empenage. Is this correct? ------------------------------------------ Here's looking at you, looking at me, looking at you
  16. MichaelkSA

    System modelling

    I have to model a system that is very similar to that shown in the attached image. Without the inclination I know my state variables are Delta, v_1 and v_2 and I know I want to model the inclination Theta as a disturbance. How should by state eqn's look...
  17. MichaelkSA

    Turbofan tip speed

    Good day all. I know that with all prop-driven airplanes (whether it be piston or turbo-prop) you want the tip speed of the prop to be just fast enough to avoid the airflow over the prop of becoming supersonic in order to avoid the negative effects assosiated with supersonic flow. What i want...
  18. MichaelkSA

    Electrical shock??

    Good day people. My first post here. I was looking for a general electrics thread but couldnt find anything, so I hope you guys dont mind helping. What I would like to know is the following: If I accidentally touch a live wire and am not insulated from ground, what would the current flowing...

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