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Yes, it started a couple of weeks ago here. Had to ask them to white list it.

I have a part with multiple configurations so when I double click a dimension to modify it I am presented with an option for "All Configurations", "This Configuration", or "Specify Configuration(s)". By default this always selects "All Configurations". Is there a way to set this to default to...

Running Mathcad 13. I am trying to contruct a user friendly generic format for our design verification files, one that can be used accross the product line. I currently have a list box containing the drawing numbers for each component that can change. I want the user to select the drawing...

The pin idea was suggested at the beginning of the project. However, there are more complicated issues with the use of a pin. There are different configurations and different pressures that would result in the use of different pins (or a different number of pins). Even if we did use a pin, there...

This is what I was afraid was going to have to happen, but I was hoping to avoid testing every batch. Any thoughts on using a ceramic of some type. I have no real experience with ceramics, but it seems like it could be an option. Do they have a more narrow band of yield strength (read...

The application is a MOS choke valve. The piece that I am working on is one that goes beteen the stem and the drive screw to fail if the pass through ports in the stem are clogged and stem suddenly sees pressure across the whole diameter. The piece that shears is basically a plug that threads...

Thanks for the quick response. Existing materials for the connecting pieces are 17-4 and 4130. Material for the piece to fail is to be determined. The worst it shoud see is salt air. This took aluminum of our list. ~Ben

I am in search of a material to add a controlled failure piece to a current valve design. I am looking for a material that has a tensile strength capable of taking the operating load of the valve (approx. 35000 psi tensile yield), but that shears at a relatively low and predicable value. My...

Thanks to everybody for the insight.

Thank, but I am not convinced this is the case becuase of the following: ANSI/ASME B1.20.1-1983 states that the nominal engagement for wrench tight is 4.32+3=7.32 turns. At 18 threads per inch, that is .407" engagement. The depths measured on the first 3 ports are more than 1 turn less than...

Cross Posted from Valve Engineering- Does anyone have a definitive reference for the required tap depth for a 3/8" NPT port. I understand from reading on here the tap depth is not usually called out, but if anybody has a standard or a guide that I could check our test parts against, I would...

Does anyone have a definitive reference for the required tap depth for a 3/8" NPT port. I understand from reading on here the tap depth is not usually called out, but if anybody has a standard or a guide that I could check our test parts against, I would much appreciate it. I have a bonnet with...

Is it possible to insert a toleranced dimension into a note on a drawing? I tried using the real dimesion (with the tolerance already defined) as well as a dimension I created just in the drawing and in both cases the note only show the nominal dimension. I am trying to create a note that calls...