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  • Users: cobra46
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  1. cobra46

    Linear Dynamic Analysis (Response Spectrum Analysis)

    Hi All, I'm having trouble getting results I feel are plausible running a linear shock simulation. I have essentially a metal box with lots of components inside. In operation, the box mounts to a flat rigid panel that will undergo pyro shock loading. The box mounting surface is planer with...
  2. cobra46

    HELP!!! How should I call out my intent

    Hi All, I'm having trouble figuring out the best way to call out my design intent on the attached part. The two Ø.0600 holes need to be parallel to each other and parallel to both datums B and A. Is there a better way to call out my intent over the way I did it? Thanks for your input.
  3. cobra46

    Triad Size

    I Googled and searched here and couldn't find anything. Does anyone know if it's possible to increase the size of the triad that's down in the corner. I want to use that to identify axis directions in a report I'm making. Thanks
  4. cobra46

    Non Linear Fixtures/Contacts

    Hi All, I'm having trouble getting results I feel are plausible running a non linear shock simulation. I have essentially a metal box with lots of components inside. In operation, the box mounts to a flat rigid panel that will undergo pyro shock loading. The box mounting surface is planer...
  5. cobra46

    Concerned that Modal Frequencies are Close Together

    Hi All, Been having fun using the vibration side of SW simulation over the last couple months. I am concerned about the modal analysis results on an aluminum billet housing assy. I ran the study out to 48 modes and they start at 538 Hz and go to 865 Hz. There are a lot of resonant frequencies...
  6. cobra46

    how to include damping in a shock study

    Hi All, I need to perform a shock study that included damping. From all my research, a Response Spectrum Analysis is the study used for shock. I don't see where damping can be included in this study. Is there another study I can use for shock that would include damping. My customer has...
  7. cobra46

    Inventor to Solidworks Translation

    We are partnering up with another company that uses Inventor 2019 while we use SW v2017. They need to share files with us but we're having difficulty. 3D Connect doesn't work because SW2017 can only work with Inventor v2016 and older. Next, we tried STP files and most of the assemblies only...
  8. cobra46

    Reverse Engineering a Spline

    Hi All, I'm attempting to reverse engineer a motorcycle transmission shaft that has recently gone obsolete. The shaft has two sets of splines neither of which I can readily identify. The one on the end where the sprocket mounts has an involute profile while the other two where the...
  9. cobra46

    Keyway Dimensioning (with drawing this time)

    I posed this question before but failed to provide a drawing. My question is how to dimension the two keyways to control the clocking tolerance of the second keyway relative to each other. The symmetry callout would only ensure one keyway is symmetric to the OD. Thanks for your...
  10. cobra46

    Keyway dimensioning

    Hi All, I am designing a part that has two keyways 180 degrees apart on a single large diameter shaft. The intention of the keys/keyways is to allow axial motion of a female sleeve to which the keys are mounted while preventing rotational motion. It is desired that there is a minimum amount...
  11. cobra46

    BSPP Fitting Questions

    Greetings, I have never used anything that has a BSPP fitting until now. The Festco cylinder I'm sourcing has G1/4 ports. Due to radial constraints I need to install an elbow right at the cylinder port. I am having a heck of a time finding G elbows here in the US. Anyone know any good sources...
  12. cobra46

    Help finding a vendor for this welding wire liner

    I have been unsuccessful trying to find a vendor for this welding wire liner. I know I can buy it from a welding supply shop like praxair but they only offer it with ends appropriate for installing it in a particular MIG gun. Anyone know what this type of item is called? Maybe something like...
  13. cobra46

    Coating selection help

    Hi all, I am making an electrical enclosure for an industrial shop type environment. For the outside aluminum panels we currently use e nickel and then paint the visible outside portions. The e nickel was selected because it has good corrosion resistance and electrical conductivity, both of...
  14. cobra46

    Help needed adding a picture to a model

    I searched and found the Sketch Picture function but there is an issue with it. I am trying to model a data plate that show the typical stuff like SN, Model Number, Company Logo..... The problem is that the white background (non graphic portion) of the picture covers the mounting holes on the...
  15. cobra46

    Assigning density at assembly level

    I have a large assembly in which many components don't have a material assigned to them. I would like to override to part level material densities and assign a density to the assembly level. Is this possible and if so, how do I do it? This techniques would be close enough as most of the...
  16. cobra46

    Can anyone identify this fitting?

    I am having trouble identifying this fitting. They are found on Weldcraft water cooled torch power cables. The thread is 7/16-20. Thanks in advance. Kevin
  17. cobra46

    Can't locate the HELP files

    I would like to spend some time at home studying the CosmosWorks help files. Is there a way to export or save these files? Aren't they just html files? I can't even find the files. Thanks, Kevin
  18. cobra46

    Can't locate inline temperature sensor vendor

    I must be having a bad day because I have spent a good couple of hours searching for an inline temperature sensor and have come up with little. We are having some temperature issues with a system we are developing and I need to temporarily add an inline temperature sensor to a coolant line...
  19. cobra46

    Font in text extrusion

    I am extruding text into the face of a part using the text sketch entity command. It seems that the text does not change when I switch from standard to bold. Anyone know why? I do get a change if I switch from standard to italics. I am using arial narrow font if that makes any difference...
  20. cobra46

    Can nylon gall aluminum

    I am working an a design that involves a linear sliding interface. One of the surfaces is 6061-T6 and the other is MDS filled nylon. I chose MDS filled nylon because I heard it was good for bearing surfaces. It turns out that the aluminum surface, which initially was smooth (~32), now looks...

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