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  1. bxbzq

    How do I call out spiral slot?

    Hi there, I have this half round slot swiping through spiral curve. How do I call out this slot? A best practice example would be nice. Thanks.
  2. bxbzq

    circular pattern on a cylindrical surface

    Hi there, I have failed to pattern a hole on cylindrical surface. Any idea how to make it? Thankshttps://files.engineering.com/getfile.aspx?folder=9bd64a23-8061-4396-a65f-28dbe382dcc9&file=circular_pattern_on_cylindrical_surface.PNG
  3. bxbzq

    how to roll sheet metal?

    Hi there, I'm looking for a way to roll sheet metal as shown in attached picture. Thanks.https://files.engineering.com/getfile.aspx?folder=b20f4002-590f-434c-8337-466bde111ca2&file=Capture.PNG
  4. bxbzq

    high thermal conductivity alloy

    Hi there, I'm looking for an alloy whose thermal conductivity should be over 50W/mK at 650degC. The higher the better. The material takes some force at 650degC therefore requires strength. I don't want to use copper or its alloy because they don't resist to aluminum corrosion in my application...
  5. bxbzq

    how to establish datums at MMB using CMM

    Hi, A very simple question but I don't have answer. Let's take fig. 4-18 in '09 standard as an example. I have a hard gage simulating datam A, B and C. If I use CMM to inspect all gd&t, do I establish datums by probing surfaces on actual part or datum feature simulators on gage? If the latter...
  6. bxbzq

    add reusable component vs. add component

    Hi, When I "Add Reusable Component" in an assembly, there is "Create Component Pattern" check box that I can select to automatically add a standard part to all features in a pattern. See attached. Then I save the standard part to local, and add it to an assembly under "Add Component", there is...
  7. bxbzq

    best way to add machining features on assembly

    Hi, We do many welding parts. What is the best way to add machining features on a welded assembly model? We use NX8.5. Thanks.
  8. bxbzq

    go nogo gages for precision machining features

    Hi, There are some parts in my project have precision machining features like φ20H7(0, 0.02) holes and φ20(-0.06, -0.02)) rod. Given the tight tolerances of these features, does it make sense to make go nogo gages for these features? If yes, what tolerances should the gages hold? We are not...
  9. bxbzq

    BOM and assembly model organization

    Hi there, I recently have to make a choice of the BOM organization. Our product has several modules. Each of these modules has certain functions to serve the end product. During assembly, we actually take components out of modules and assemble them one by one. So these modules are not assembled...
  10. bxbzq

    view orientation

    Hi, In attached simple sketch, when I dimension the relationship of the two datum holes, is there difference between the sheet #1 and #2? Alternatively, if I orient the view so that the connecting line of the two holes is horizontal, would it be a better practice...
  11. bxbzq

    RFS and Projected tolerance zone concept on threaded holes

    Hi, I'm now working on some drawings where threaded holes need to be toleranced. I'd like to use projected tolerance zone concept in the positional tolerance specifications. I looked over the '09 standard and some examples in my training materials, all threaded holes using projected tolerance...
  12. bxbzq

    part drawing revision and assembly drawing revision

    Hi there, When you revise a part or sub-assembly drawing, do you revise also all upper level assembly drawings? Do you include part/sub-assembly drawing revisions in parts list in an assembly drawing?
  13. bxbzq

    Individual feature control in a pattern

    Hi, In attached drawing, I want to control the two welded pieces. Look at the two surfaces connected by dash line in upper left view. The perpendicularity tolerance of each surface relative to datum A and B is important. The coplanarity tolerance between them can be larger. It means the two...
  14. bxbzq

    How to hide silhouette curve

    Hello, I believe there must be a simple solution but I don't find it. Problem please see attached screen shot. The dash line circle is from a thread hole at far end of the part. It is a silhouette curve. I don't want it to show in this section view. If I select it and hide it, many other lines...
  15. bxbzq

    Stepped holes callout

    Hi, In attached print, how do you like the stepped and chamfered holes callout? I'm trying to come up with a callout simple and clear. Do you think the the callouts shown in first sheet is clear, or I have to do it like the second sheet...
  16. bxbzq

    INTERNAL ERROR WHEN ADDING SECOND SHEET

    I modified the drawing template. Now everything looks just fine until I get Internal error: memory access violation when I try to insert the second sheet. Any help here?
  17. bxbzq

    adhesive materials in BOM?

    Hi there, Do you include adhesive materials, like glue, thread lock, welding rod, solder, tapes, stickers etc. into BOM? If not, where should these materials go in your materials management system?
  18. bxbzq

    square bracket text in parts list

    Hi, I searched and did not find answer. In my drawing template, I don't assign attribute to the PART NAME column in parts list. I type the part name text into this column. The problem is the list shows square brackets[] around the part name text, as you can see in attachment. How do I get rid of...
  19. bxbzq

    How to simulate center plane datum from width datum feature on CMM?

    I think this is a very simple question but I don't find the answers. I understand for slots, one may use adjustable parallels to fit into the slot to serve as datum simulator. But for outside width feature, what are the tools?
  20. bxbzq

    symbol identification question, one more

    Hi, I got a sheet metal part drawing showing the symbol as attached I never seen before. Any help so I don't have to guess? The drawing is from Europe.http://files.engineering.com/getfile.aspx?folder=e646dfcb-eed9-4862-8acc-9f0137f66efa&file=symbol.png

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