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mechguy632: Regarding your second question, first let me warn you, it's generally unadvisable to alter or delete any CSs in the original solid (or surface) model if you wish to avoid destroying its correct history. So if you plan to delete any CSs in your FEM, it's advisable to first copy your...

Thanks for the Match Edge tip, RCDLtd. I haven't tried that command yet, and don't know where it's located yet. eng1234: Similar to what RCDLtd mentioned, you could perhaps create and stitch the surfaces piecemeal, using the existing surface edges as some of the surface by boundary (sbb) sides...

Since your post states the file name ends in .arc, also try opening it in MS Wordpad or MS Word and Save As text only, then try importing into I-deas 9m3.

What is (are) the extension(s) on the file name? If .Z, then (on a copy of the file) use the Unix "uncompress" command to uncompress it. If .gz, use the Unix "gunzip" command to uncompress it. If it's missing either of these extensions, try adding them before executing the command.

Mike: What is (are) the extension(s) on the file name? First try to unzip it on a Windows OS (right click and select Unzip). If that fails, I predict it may have (originally) actually come from a Unix OS. Without opening and saving the file on Windows, try uncompressing or unzipping it on a...

But a Loft having more than two cross sections won't allow you to add rails. When you right click after selecting three or more Loft cross sections, notice there is then no longer an "Add Rails" command in the right-click menu. It might look like your lofts followed "rails," but they didn't (and...

eng1234: I apologize for misguiding you. You were right. Three cross sections should work better for your application than five, to give you a smoother surface, as you said. However, I had forgotten that Loft allows you to add rails (right click and select Add Rails) only if you have two cross...

RCDLtd and ConX wrote: >> Convert the two sweep path curves to reference lines. << (1) What advantage does using a reference line here give you over using just a fully constrained, regular line? >> You will need at least one line fully constrained for the others to follow suit. << (2) When...

eng1234: Now that you mention it, I think that fear is well-founded. Too many cross sections (if they're the least bit off) could make a surface rough. Good point. I'd like to retract my comment that "rails don't matter much." As I vaguely recall, Loft allows you to have only two rails, the...

eng1234: Sounds like you're on the right track with Loft, except you just need at least two more cross sections, to obtain the desired curvature definition along the rear (curved) edge. Try Loft again using at least five cross sections, instead of three, and let us know if it doesn't create the...

mechguy632: Do you want the two parts to be one part in Master Modeler? Or do you want them to be an assembly of two parts in Master Assembly? If the latter, you'll need to learn the Master Assembly task. If the former, I think you made a mistake by meshing your two parts before Joining or...

A couple of minor corrections to this otherwise excellent thread. unclesyd and ornerynorsk, the fatigue strength of coarse threads is higher than fine threads, due to the smaller (sharper) root radii in fine threads. (By the way, metric threads have higher fatigue strength than imperial...

FYI. Thread referenced by MASSEY, above, regarding &quot;fatique of shaft&quot; is thread330-21601 (long). I didn't check, myself, to see if the issues therein are related to your specific problem.

Are the SA designations only for ASME BPVC, or all of ASME?