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  • Users: random_guy
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  1. random_guy

    Perpendicularity to Two Datums

    Y14.5-1994 shows perpendicularity to two datums, which I've always used (Fig 6-35, p.182). Y14.5-2009 and 2018 show perpendicularity to two datums but add an angularity constraint to A|B (Fig 6-4, p.101). I believe the intent is the same, but the addition of the angularity FCF is just confusing...
  2. random_guy

    Parallelism on a Slot

    Can parallelism be applied to a slot? Y14.5-2018 shows it applied as a refinement to position of a hole (Fig 9-9 and 9-10). If I wanted to control orientation of the slot to a datum plane, but not necessarily position, I don't see why I couldn't. If it's applied in this sense, what does that...
  3. random_guy

    Angular Position of Grouped Holes

    There are 6 holes in the pattern in question (notice the vertical holes are a different size). The 6 holes are all controlled by the same FCF. I have applied a 4X 45° callout to the holes. A coworker believes there needs to be a 90° basic dim connecting the two groups. I think it's implied...
  4. random_guy

    Stress on strap wrapped around a drum

    Sometimes it's the easiest problems that give you the most trouble... I'm estimating the fatigue life of a thin load carrying strap that's .008" thick and .75" wide, wrapped around a Ø0.1 m drum. Fatigue from axial loading is as expected (10^9, not a high axial load). For stress due to...
  5. random_guy

    Coplanar datum / common datum features with more than two surfaces

    I have a long (15'), thin, extrusion with cuts perpendicular to the length. Essentially as shown below. I want my primary datum to be where all the surface profiles in the image above are applied, in order to facilitate gaging of the slots to that primary datum. The top surface is also...
  6. random_guy

    Missing References in Creo

    I'm working on a very large assembly in Creo 5, which is some legacy hardware created by a group that no longer exists. I don't know what version the assembly was created in, but it may have been pre-Wildfire. I had numerous errors upon opening the assembly, all of which I was able to solve...
  7. random_guy

    Intelligent fasteners and repeat regions

    We use a hardware library in Windchill with Creo 3. It works, but I started playing with the Intelligent Fastener tool and really like it. It's much faster/easier than using hardware libraries. Therefore, I'm trying to get our BOM to work with it. Here's my stupid part: And here's my current...
  8. random_guy

    Hiding Components on Detail View

    First of all, I realize this is against drawing practice. I have a customer who wants a component hidden on a detail view to show the components underneath. This is not possible on a detail view, as it must be hidden on the parent view. Is it possible to hide a component on a detail view and...
  9. random_guy

    Placing Datum Flags on Leader Lines / Attaching Datum Flags to FCFs - (WF5)

    Hi All, I'm using WF5 and have always placed datums using the "old style" boxed callout or used the @[-A-@] technique. I'm trying to transition to the newer style (flags) and I keep hitting roadblocks. Here are the two main issues I've been having: 1. I can't get diametrical datums to attach...
  10. random_guy

    Maximum stress in a cylindrical square drive

    Hi All, I'm trying to determine the maximum stress of a circular part under torsion with a square drive in one side. It is essentially a socket adapter: I can find the stress of a square shaft, and the stress of a hollow shaft, but a square hole in a circular shaft eludes me, and I do not...
  11. random_guy

    Pursuing an MSME, becoming a design engineer - advice please!

    I know similar threads have been posted; I just read through a couple dozen or so but none of them quite fit what I'm looking for. Perhaps some of the "tribal elders" here can offer me some advice. I just graduated with a BSME from Cal Poly Pomona. I currently work for the Naval Surface Warfare...
  12. random_guy

    Helical Protrusion Parallel to the Axis of Revolution

    Hi All, I am trying to create a helical protrusion along the inner diameter of a cylinder. The problem with using the helical protrusion tool is that the cross section needs to be sketched perpendicular to the axis of revolution. I need to sketch parallel to the axis of revolution. I thought I...
  13. random_guy

    Wildfire 5 Constantly Switching Tabs

    Hi All, In Wildfire 5, the drawing mode is composed of tabs just like Office 2007 and Solidworks. I am getting used to it and liking it (kinda) so far. However, to do something such as change the drawing view properties or delete a note requires that you be on the correct tab. e.g., I want to...
  14. random_guy

    Radial deflection from an axial load

    I've got a polyethylene disk with a short width compared to the diameter. The disk will have an axial pressure placed upon it, and I wish to find the radial displacement as a result of this axial pressure. It will form a bulge in the center of the disk around the circumference, and the height of...
  15. random_guy

    Press fit seal between two BeCu cylinders, *pics*

    Hi All, I have two beryllium copper parts that are to be placed together with a gap of .005 in between the OD of the inner and the ID of the outer. Approx 1200 psi of force will press on one side, expanding the inner cylinder to create a seal with the other. Check the pic for a better...
  16. random_guy

    Strange Symbols Printing on Every Sheet

    Hi All, While this is my first post on this site, I have used it many times to find help with Pro-E. Thank you all for that. I am currently having trouble figuring out the source of a strange symbol that is appearing on all the sheets within one of my drawings, but only when I print or create...

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