To recap from above:
• The inspection fixture probably wouldn’t work (would be too big to fit in the bore if the part was at anything bigger than LMC). The only way the fixture would "fit" is if the hub were plastic and flexed a bit.
• “As B gets smaller your cylindrical tolerance zone grows by...
Thanks powerhound, Belanger and pmarc for taking the time to pass along your knowledge; I appreciate it.
We couldn't figure out how the fixture would work if the part were above LMC either. The only thing we can figure is the the needle "hub" is plastic (a bit compliant) to accommodate the...
I'm looking for an explanation of the feature control frame outlined in red within the attached.
I'll take a stab at the meaning: The position of the axis of the shaft (along the entire length of the shaft) must be within a 1.1 diameter circle after the part is first fixtured relative to datum...
Pat, Pud and Dr. DeArmitt, thanks for opinion on the potential diluent; much appreciated.
prdave00, I'll surely keep this thread updated with the findings and thanks for the photo of the natural Lustran 348. I did see that INEOS offers the "sno white" color and this would be a good option to...
Pat, yes, colorant is added to make an off-white color. The Certificates of Analysis from the plastics compounder (a company called Compounding Solutions out of Lewiston, ME) note that the final product is 0.999% colorant (I believe it is four different pigments mixed together).
I'll keep your...
Dr. DeArmitt, thank you very much for your reply!
Firstly, to answer your question, we are a medical device manufacturer and mold release is not permitted on our product; the "no mold release" statement is noted on our drawings (I even have a signed letter from the president of the molder we...
Hello All,
We are pad printing a company logo on some ABS Bayer Lustran 348.
We are having trouble getting the pad printing to stick to the part (after the ink cures, it can be removed with a fingernail) and we have identified (via FTIR) a fatty acid most like Erucamide. According to Bayer...
fsincox, the "C" indicates a critical dimension that must be inspected (per an AQL) at incoming prior to use in the finished assembly.
Thanks for the question.
Great! Thanks for the speedy replies ewh, pmarc and SeasonLee! "Coaxiality" was the word we were trying to think of, but couldn't conjure up!
To recap (just to be sure I'm understanding correctly), since there is an "M" (maximum material condition) in the feature control frame, this denotes...
Hello All -
Within the attached drawing, there is a feature control frame highlighted in red. Can you please relay, in plain language, what this frame means?
Drawing: http://files.engineering.com/getfile.aspx?folder=b67967bd-10c0-4350-a0e4-8052407c601a&file=Drill.jpg
Thanks for your time...
