Maybe I did not explain well enough. I have a "purchase" part that has 3 pieces to it. Each of those 3 pieces will be used in 3 different parts/assembles.
I have a COTS (VICD) part that will have the pieces of the part used in different models/drawings. The COTS part consist of 2 weld on flanges, and a clamp that pulls the flanges together. Flange A will be welded onto weldment A, Flange B will be welded onto weldment B, and there will be a higher...
Straightness of a surface still has to meet perfect form at MMC, so that may not solve the issue. Possibly dimensioning the overall height and applying the straightness to the center plane, which would allow overriding perfect form at MMC.
Not trying to tell them how to make the part. I do not care if they uses an industrial strength paper cutter, plasma cutter, laser or waterjet, I am only defining the limits they must stay within on the finished part.
Sorry about that. I meant to show the all around symbol in the picture.
The completed TDP drawings will be a hybrid that includes basic views, any +/- dimensions, GD&T, and directs the user to the cad model to query the basic dimensions.
Maybe I have not explained what I am trying to call out and define. I am trying to determine if the callout in the picture I included would be correct in defining the cut path of the sheet metal part. If the view and callout were in the flat pattern it would work, but am wanting to know if the...
If using the "all over" call out on a sheet metal part, is it the "Unless Otherwise Specified" portion of the all over usage that would need to exempt the all over applying to the thickness, and the main faces? Does the sheet metal thickness tolerance, flatness, etc. still default back to the...
I plan on using profile on the cut surfaces of sheet metal parts. Does the all around for the profile apply across the bends, or do I need to specify multiple profiles going from A<-->B, C<-->D, etc. where each call-out goes from bend to bend?
If I go from bend to bend, I would create a primary...
MMC can also allow for rework of a part that may have position errors. Holes, or datum features (depending on where MMC is applied and error occurring) can be machined towards their LMC limit allowing max positional tolerance, that may bring a part back into spec. A part defined cannot be...
When specifying the center mark left on the ends of a lathe built part, should it be fully defined via GD&T, or can a simple note allowing a max diameter and max depth be specified?
Thanks in advance.
Greenmini,
My intent is to have the call out along the lines of a composite. I want to allow the hole pattern to float in a large, rectangular zone, but I want to ensure the hole to hole location of the pattern stays tight in a normal circular zone. Basically I am mounting something on a rail...
pmarc,
So you are proposing something as this?
http://files.engineering.com/getfile.aspx?folder=f93d71f7-d60f-4132-9d20-839d08af40bc&file=Composite-Bidirectional_1.JPG
It was too early to concentrate too much on my Fritz [thumbsup2]
CheckerHater,
I am uncomfortable with it also, but it is the closest thing I can think of to achieve the end requirements. Any ideas on a cleaner method would be greatly appreciated.
