This is not as good as the sketches suggestion but I can try with words:
You could look at the cross sections not as on circular areas but as lines in a view where you see whole length of the pin. If the pin is bent and you look at the middle of it, you will notice that the start point of the...
greenimi,
The most simple answer to the question "how" would be:
Indirectly, but inevitably.
The more comprehensive answer you can provide yourself by making a couple of sketches, rembemring that the longtidual and the cross sectional areas belong to the same piece of solid material :-)
greenimi,
If I understand correctly your question, the answer might lie here:
Para 2.7.1:
"(b) Where the actual local size of a regular feature
of size has departed from MMC toward LMC, a local
variation in form is allowed equal to the amount of such
departure."
I think this is pretty...
By round cutters you probably mean form milling cutters, not lathe tools. Those are not different in principle. The face under the cutting edge (flank) is gradually tilted away from the workpiece by the means of a relief/clearance angle ground on the tool/toolbit. It could be a flat face or a...
OmarEn07,
I would word a conclusion otherwise:
Rule #1 applies to regular features of size with the exceptions noted in the Y14.5 standard. One sided tolerancing isn't recommended for cylindrical features, because of poor product definition.
No portion of the pin will be allowed to violate a boundary of a perfect form cylinder of 10mm diamter size.
Perferct form at LMC is not required, but you still need to specify a minimum diameter limit to fully define the part, and it's form. Otherwise, if there is no Min. limit, you could make...
3DDave,
If you propose a dimensioning scheme where the rake and the flank surfaces will be defined, each one, in a view where it appears as a contoured surface with each line element along it parallel to the projection view, you will find that there is no such view available. Because of...
When you said that you would use profile to control the perimeter, I thought you were referring to a view where the edge is part of that "perimeter" (where the edge is viewed as a line). If by controlling a "perimeter" you mean controlling the outline of the cross section with profile, like I...
The reason why the word "sharp" is in apostrophes in the title, is that no real edges are completely sharp as in a theoretical intersection of two planes(not surfaces) - these things only exist in theory, and in drawings, where edges are depicted as lines and do not represent something with an...
3DDave,
With the dimensioning scheme you described, I suppose you were referring to the example I presented to drawoh (the sculpture knife).
I have to admit that my experience is not in dealing with this specific kind of products, but if I can rely on my knowledge from the metal cutting tools...
pmarc,
Regarding the level 1/2:
I can justify aspiration to get to level 2, as long as what it takes to be at level 2 doesn't come in expense of the main goals of the strategy of level 1 which you described: "fully and unambigously define product".
With modern production equipment, many...
greenimi,
I appreciate your second quote very much - that was said much better than I could ever say to express my message.
But please allow me to use your first quote with a little modification - I will replace just one word by a one that is closely related to it and more relevant to this...
I just want to add to pmarc's last remark my observation, that Level 2 is only available to "design players" working in organizations where the people "playing" at the production floor have enough spare time at their work day to interpret sophisticated feature control frames using colourful...
