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  1. swertel

    PTC Prime (again)

    I dropped MathCAD this year, this being one of many reasons. It's no longer a cost effective maths tool. There is nothing inside Prime that justifies the expense. --Scott www.aerornd.com
  2. swertel

    Resources for drawing number system from scratch

    In these technology times, the best part numbering system is one that is an insignificant sequential number. Everything else can be stored as parameters or attributes within the metadata of the item for classification, searching, filtering, etc. --Scott www.aerornd.com
  3. swertel

    Time Tracking Solution

    Clockify TrackingTime Timely PPM Express Those are 4 time tracking applications that work pretty well, using the freemium model. (The free version is good, extra features for subscription.) --Scott www.aerornd.com
  4. swertel

    Manufacturing to CAD -without Drawings Yes/No

    ASME Y14.41 Digital Product Definition Data Practices ASME Y14.47 Model Organization Practices ASME Y14.46 Product Definition for Additive Manufacturing ASME Y14.31 Undimensioned Drawings NIST.AMS.100-1 Summary Report on the Model-Based Enterprise Capability Index and Guidebook Workshop...
  5. swertel

    More firings?

    I see the pattern, too. Almost everyone at my previous employer now has a warning against them and are on a performance improvement program. One more strike and they can be fired. My strike was because another engineer didn't approve a document revision in time and I was in charge of the...
  6. swertel

    Version 21 is now out.

    Their under an Agile development now where updates come out monthly and updates more frequently than annually. It is a good thing. --Scott www.aerornd.com
  7. swertel

    [HELP] Part quantity on single part drawing

    Can't be done automatically in the title block. You can create a callout, using named references, to get the quantity value of a part from the assembly view and place it in the title block location. But, for that callout to work, it will have to attach to the specific part in question in the...
  8. swertel

    [HELP] Part quantity on single part drawing

    The reason why that is so difficult to do in Solid Edge is because it is very bad drafting practice. What happens if that part is used in a different assembly with a different quantity? But, if you are set on doing this, you can insert the assembly into the drawing and create your Parts List...
  9. swertel

    Military to Space Industry Career Advice Needed

    I guess I should clarify my point. Start looking for jobs within the companies located in areas around the country/world that you want to live. Look at the education and experience requirements on those job postings and go from there. --Scott
  10. swertel

    Military to Space Industry Career Advice Needed

    Look up any company that hires veterans. Most defense contractors look to veterans first. Boeing Raytheon Honeywell Northrup Grumman Lockheed Martin Nammo Defense Systems Where do you want to work/live? --Scott
  11. swertel

    Best book for >>Strength of Materials<< stress reference

    Peterson's Stress Concentration Factors --Scott www.aerornd.com
  12. swertel

    Do Find Number on a Parts List have to be sequential?

    They don't have to be sequential. I've seen plenty that start with 100 and increase by 10s. Then when a replacement part is used, use an '5 Find Number, and so on. Why anyone would make Find Numbers significant/intelligent is beyond me. What is specified though is that Find Numbers are not...
  13. swertel

    Standard Practices - Isometric View

    The golden rule of drafting, only add a view if it adds clarity. If the orthographic views are enough to clearly and easily visualize the part/assembly, then no need for an iso view. If there are some complex pockets or bosses, then having an iso view helps users interpret the orthographic...
  14. swertel

    Does Dia Tolerance Control Straightness

    I also forgot to mention that bent tube, due to the forming process, will not have a consistent external and internal radii. Therefore, the diameter at the tube is likely to not be as defined. How much the bends get egg-shaped is up to the forming (bending) method and the skill of the...
  15. swertel

    Does Dia Tolerance Control Straightness

    3DDave, The composite tube is made out of wound tow fiberglass filament. It's a horizontal winding machine; can't change the orientation. I think they may have the option to include a support on the opposite end of the mandrel so it's not cantilevered, but there is still the potential for...
  16. swertel

    Does Dia Tolerance Control Straightness

    djhurayt, so you're referring to having bent tube, like an automotive exhaust or similar? In that case, the designer would want a consistent diameter throughout the length of the tube/pipe, but it is definitely not straight. I think Rule #1 would still apply to any segment that's implied to be...
  17. swertel

    Does Dia Tolerance Control Straightness

    A little more background information. I didn't realize this topic would be so interesting. The discussion started because the composite tube manufacturer wanted us to give him a straightness value for his mandrel. This is a very long tube and the mandrel will deflect under its own weight...
  18. swertel

    Does Dia Tolerance Control Straightness

    A few points of clarification. 1) This is not stock tubing. This is a custom composite (wound) tube, so the tolerance dimension does apply. Paragraph 2.7.2 does not apply. 2) I can't spec the straightness because I don't control the drawing. I can propose a change to the document owner, but...
  19. swertel

    Does Dia Tolerance Control Straightness

    Thanks, chez311, re-reading 2.7.2 helped clear up my confusion as well. We deal with custom made tubes as well as stock tubing. In one argument (stock tubing), straightness is not held based on the diameter tolerance per 2.7.2. In another argument (custom composite tubing), straightness is...
  20. swertel

    Does Dia Tolerance Control Straightness

    I have a tube with an inner diameter dimension consisting of a +/-.005 tolerance. Does that tolerance also control the straightness of the tube? From my interpretation, if the ID was a datum, then the theoretical datum surface would be a cylinder that fits within the tube. That implies...

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