There must have been a reason that 1/3 and its sibling 2/3 were barred from joining the official fractional family of the US Customary Units. Otherwise, the amount of energy required to achieve the level precision that is true to their fractional values would have caused the world to implode...
Prometheus21
When I mentioned keying in 5 decimals into the machine, I was referring to the nominal dimension, not the tolerance (Or are you telling me that the machine doesn't see the difference?). I do understand that dictating a tolerance of +/-0.00001" on a drawing will cost me a lot more...
ctopher, I agree with you on the limits of the acceptable dimensions. No arguments there.
However, what I am trying to understand is more towards how they would measure it/what would they use to measure it.
In this case where the limits have five decimals, would they:
1. Just measure with a...
Thanks for all the replies and in-depth discussion. It has been rather insightful. It is interesting to learn of the different ways that the inch decimals are being handle at different establishments.
----------
Do I understand your statement correctly by saying the following:
1. In the first...
I'm pretty sure that this topic has been discussed again and again within this forum, but I've been through several related threads (probably 10+) and still haven't found the answer to my question. Short of browsing through all of the threads in this forum, I have decided to start one and ask...
This is the updated design that I have gone with:
The pivot will be operating in a standard indoor environment, not submerged in any liquid and not in contact with anything corrosive. The pivot will be adjusted manually, probably less than 10-20 times a day, and loading is not very high.
At...
@MintJulep
May I know what is the item in your attached picture?
@dvd
A shoulder bolt is a good idea. I should have known. A simple Google search of bolts for pivot would have return similar recommendation. Thanks very much.
At the moment, the flanged bushing sketch is just a representative...
I've updated the design as per recommendations here.
1. Should there be gap between the stationary bracket and the flanged sleeve bearing?
2. If there is gap, but the gap is closed due to clamping effect from the bolt, will the rotating bracket still be able to pivot purely based on the fact...
I am designing a hinge and would like to ask for some advice/recommendation on the sleeve bearing configuration. It is similar to a see-saw hinge. The application is low-speed.
In the picture below, the dark blue bracket is the stationary bracket, while the magenta bracket can be rotated. Will...
Pmarc and 3DDave, thanks for your pointers and sketches. I see now that I have understood the derivation of datums incorrectly.
Referring to the following content within ASME Y14.5:2009 has also helped in clarifying that the Datum features affects the Datums orientation, in a way.
axym, at...
I've included a sketch of the distortion which I assume is similar to what you mean.
Here is my understanding. Do correct me if I am mistaken.
Since Datum A, B and C are defined to be perpendicular in the drawing, it remains perfectly perpendicular no matter the outcome of the manufactured...
I have been reading and searching through the forum on this topic, but I was unable to find a topic which answers my confusion. I would be glad if anyone can share their opinion or facts based on the questions below. Otherwise, if there are already existing threads discussing this topic, perhaps...
