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  • Users: rmetzger
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  1. rmetzger

    partially threaded fasteners - is there a standard on thread length?

    I've been hunting for information on any standards for partially threaded fasteners. Is there a standard dictating at what fastener length does a fastener become partially threaded by default, and if so, is the length of the threaded portion part of a standard? Any insight?
  2. rmetzger

    help with an old material designation - HC-218 acrylic

    I posted this question in another forum without any response: We have an old spec for a part using a cast acrylic base material. The Acrylic grade listed is HC-218 but I cannot find any useful information in regards to the composition nor properties of this grade. Any help is welcomed!!! Is...
  3. rmetzger

    Acrylic HC-218

    We have an old spec for a part using a cast acrylic base material. The Acrylic grade listed is HC-218 but I cannot find any useful information in regards to the composition nor properties of this grade. Any help is welcomed!!!
  4. rmetzger

    cosmetic specifications to indicate a acceptable level of defects

    Does anyone know of a cosmetic specification for part surfaces that indicates acceptable levels of defects (scratches, digs...) for non-optical parts. We have a few parts that we are looking for a uniform exterior surface finish allowing a level of imperfections. I've found a number of company...
  5. rmetzger

    revision standards - change of a BOM that is not shown on a print

    We have a number of older assembly prints that do not list a BOM on the print (listing the BOM for ease of visibility is our current standard) but instead track the BOM in software unrelated to the CAD system. It is our understanding that if the BOM changes for an assembly, the revision of its...
  6. rmetzger

    "country of origin" on drawings

    The management of our company is mandating that "country of origin" get listed on the drawing for each part we purchase. I believe its their interpretation of a US trade law. Has anyone else gotten this mandate and if so, what was your method to meet the mandate? thanks Ron
  7. rmetzger

    material options for high precision machining

    We are looking for alternate material for an application where a glass filled PEI (ultem) is currently used. There are a few high precision features in the finished part so I am looking for a material that has good dimensional stable during and after machining (.0005 hole tolerances). Other...
  8. rmetzger

    standard for obsolescence of a part on a charted drawing

    we have numerous charted drawings and on occasion a part on the drawing will go obsolete (no usage). The current system has us either removing the part from the drawing or marking a line through it in the chart. I've not been able to locate a reference to a specific practice within the ASME...
  9. rmetzger

    injection molded plastic resistant to alkaline battery acid

    I am looking for an alternate material for injection molding that would be resistant (long term) to battery acid leaked from alkaline cells. The current material has the following processing properties that we'd like to stay close to: Mold Shrinkage, flow, 3.2 mm (5) 1 - 1.2% Melt Flow...
  10. rmetzger

    interpretations of Y14.100 6.8.1 in regards to changing PIN's during a revision...

    I'm looking for opinions on the interpretation of ASME Y14.100 6.8.1 in regards to when to change a part ID. specifically: "when the previous version of an item is limited to use in specific articles, or models of articles, and its new version is not so limited. A new PIN shall also be...
  11. rmetzger

    ul50E gasket material / source

    We are looking for a foam gasket material for a outdoor electrical enclose that is UL50E listed. Our preference is for a extruded round cord in neoprene or silicone of approx .100" diameter. Anyone have any good sources for UL50E material that is not cut from sheet? Custom extrusions would...
  12. rmetzger

    max tightening torque values for screw heads

    I'm sure this question has been asked before but I'm unable to find a thread that addresses the question. I'm looking for a chart or tabulated form that lists the max allowable torque for various materials and drive types for screws. With some of the smaller fasteners we use in products we run...
  13. rmetzger

    very low CTE moldable plastic looking for lower melt temp suggestions

    We currently are using a Sabic ULTEM 2410, 40% glass material for a project but would like to find something of a similar CTE but with a lower melting temperature. Ideally something with a similar water absorption (as this part is continuously submerged in fresh and salt water) and with similar...
  14. rmetzger

    SW assembly not opening part files / suppressing parts

    Since we've jumped to SW2011 (sp 2.0) we've been having trouble with some assemblies not opening up all the referenced part files. During the process of opening the assembly SW will ask to locate the part file but will not load it when you manually point the assembly to the file. The parts in...
  15. rmetzger

    type 2 cross recessed (phillips type) drive dimensions

    We're working on a #4-40 fastener (similar to a flat head (82 degree) that is to have a type II cross recessed drive on the head. I'm looking for detailed dimensions on the actual female drive for the screw as it will be a custom molded part. I've not found complete information anywhere and...
  16. rmetzger

    screen protection film manufacturer

    I'm looking for a source for a adhesive protective film similar to the screen protector material used on cell phones. An ideal solution would be a gray tinted hardcoat PET film with and a silicone adhesive that would allow it to be installed easily without bubbles and removed if damaged without...
  17. rmetzger

    unknown error opeing files - SW2009

    Anyone have a solution or a idea on a cause for the error statement "unknown error opening" + file location and name when parts are being loaded. It doesn't seem to matter if its local or network and all the files are recent and of the same version. The system worked fine yesterday with the...
  18. rmetzger

    appearances on faces / features

    In our conversion from 2008 to 2009 we noticed that a number of models that had appearances applied are now having issues. It seems that during the conversion SW has applied appearances to faces and features within the part and there does not seem to be a good way to get rid of them. In some...
  19. rmetzger

    cold weather capacity for alkaline batteries

    We are reviewing the typical energy capacity of alkaline batteries at 5 degrees C vs their capacity at room temp for a pending project. Does anyone have s source of data on the decrease of potential we can expect at the lower temperatures?
  20. rmetzger

    converting a excel file (or the data) into a solidworks table

    Is there a painless way to take data from a spreadsheet and convert it into a solidworks table (not importing the spread sheet into the drawing)? Right now our only method is to copy the data from the spreadsheet table cell into the solidworks table cell

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