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Recent content by sp8472

  1. sp8472

    Are there guidelines or specifications for using silicone to secure large parts against vibration?

    The vibration environment hasn't been specified, and we are essentially the customer for our own manufacturing line. If there is to be an environmental specification, we'll be the ones writing it for our own products. The market I'm in isn't heavily regulated. I don't want to take that as a sign...
  2. sp8472

    Are there guidelines or specifications for using silicone to secure large parts against vibration?

    I do have some kind of vibratory feeder hardware here that could be modified easily to hold a circuitboard. Even so, some manner of IPC/ASME/EIA spec would go a long way. Even if I show a failure on a shaker table, because it's a small in-house test and not an exact replica of the vibration seen...
  3. sp8472

    Are there guidelines or specifications for using silicone to secure large parts against vibration?

    On a lot of electronic assemblies, I see silicone, or even hot glue sometimes, used to secure large components against motion or vibration. I know that solder is weak structurally. Some assemblies have silicone on darn near everything that has more than several millimeters of height. I've seen...
  4. sp8472

    Slot constraint in Pro Engineer Wildfire 4.0

    I'm trying to get rid of the hotlink protection on my website so that the image attachment can be displayed. I also can't help but notice that there isn't an Edit function here. Huh. I've got eng-tips.com added as a permitted domain, but it still isn't doing the job. Maybe an embedded image...
  5. sp8472

    Slot constraint in Pro Engineer Wildfire 4.0

    I'm working on a vertical chain-driven conveyor system. It is to have several trays attached to the chain, which will move components past a paint sprayer system. The machine is meant to permit an operator to place the components onto the trays, push a button, and come back in 45-60 minutes to...
  6. sp8472

    Any way to add notes or comments in Sketcher?

    Hello all, Version: Pro-E WF4.0 What I'm after: Some way to add notes or comments in Sketcher, similar to how one would add comments in computer code to explain what a line or section should do. I do design of aluminum extrusions and sheet metal enclosures, and there are many features and...
  7. sp8472

    Publish/copy geometry: Is ther any way to change the coordinate system used?

    ....and as frequently happens, the answer was right there in front of me, to be found right after asking for help. [smile] The button next to the Open Model button, which looks suspiciously like the icon used to indicate "Add Component to Assembly" is in fact the "Specify external Copy geometry...
  8. sp8472

    Publish/copy geometry: Is ther any way to change the coordinate system used?

    Hello all, I've been trying my luck with some manner of top-down design, using the Publish Geometry and Copy Geometry tools to share some references between models. A problem I've run into: Changing the coordinate system to which a Copy Geometry feature is bound. Is there any way to do it after...
  9. sp8472

    Aluminum extrusion shape restrictions?

    SnTMan: Someone's got to design the hyper-intelligent FEA systems of the future, at least until they're smart enough to design their own successors. [smile]
  10. sp8472

    Aluminum extrusion shape restrictions?

    The tolerances were in fact their limits. I will explicitly call out tolerances on critical dimensions, primarily if it's not symmetric: -0.002/+0.014, for example. Besides that, the extruder will produce their own drawing, call out the tolerances they are willing/able to hold, and give the...
  11. sp8472

    Aluminum extrusion shape restrictions?

    Maybe some day in the future they'll get the flow properties of aluminum figured out, and it'll be possible to feed a profile to some FEA software that'll then try to build the die from that. "As it turned out it was out of limit but that did not matter to you, what would have happened if it...
  12. sp8472

    Aluminum extrusion shape restrictions?

    A portion of my job is the design of aluminum extrusions as framing for small signs, typically 6063-T6. What I learned early on is that the process a diemaker or extruder uses to determine the extrudability of a die isn't at all a matter of FEA or stress calculations or anything like that -...
  13. sp8472

    FireGL V8650: Fluid 3D, but work in drawings is very sluggish

    Fixed: Of all things, it looks like it was the vertical sync setting in the ATI drivers. I set that to "Off, unless application specifies," and now it looks like everything's working fine. I guess Pro/E has to recalculate and redraw the *entire* window when so much as a single pixel changes.
  14. sp8472

    FireGL V8650: Fluid 3D, but work in drawings is very sluggish

    Some additional findings: IT came down to help out with this. Process Explorer was used to monitor the xtop.exe process. With OpenGL enabled, the CPU is barely affected when manipulating 3D objects, or when working on a drawing. However, the GPU is quite active, and is pegged at maximum usage...
  15. sp8472

    FireGL V8650: Fluid 3D, but work in drawings is very sluggish

    I recently got a PC upgrade to an i7-960 CPU, 8GB RAM, Win7 64-bit, and an ATI FireGL V8650 2GB PCIe videocard. And I'm running Wildfire 4.0 M010, 32-bit. The 3d performance is fine; it can manipulate assemblies pretty smoothly, so it seems like the 32-bit Pro-E is working ok with the 64-bit OS...
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