- [Narrator] Once you've populated your dimensions
on your drawing or maybe at the time when you create them,
you may want to edit the tolerances
and the precision on a dimension.
So, if I click on this dimension here
and go over to the dimension property manager,
you can see in the second area down,
I have the tolerance/precision.
So if we start right here with the tolerance first,
right now, it says None.
We can change that to all of the options below.
Typically, I think people use either bilateral
or symmetric as the most common.
So, let's go with bilateral here,
to plus 0.05 and minus 0.02,
to create that bilateral dimension.
And to make this a little bit simpler,
I'm going to turn off my dual dimension.
But you notice you can dual dimension
with those tolerances as well.
Second down is our precision, right now,
we've got it set to the same as the document,
but maybe we want to go to a more precise value
because our tolerance is going
to the third decimal point or thousands of an inch.
So, we can adjust that as well here.
And we can drag this off and make it a little bit neater.
I can also change this to symmetric if it's just
a plus or minus, or any of the other options here
min, max, fit, limit, basic, whatever you like to choose.
Now, if you want to set the tolerance
for all the dimensions across your drawing
you can go up to the Options, go to Document Properties,
go down to Dimensions, and here you will see
all of your tolerance information
and you can adjust that here for your primary
and your dual dimensioning.
Now remember, we do have on most title blocks,
down in the corner, a standard tolerance block.
Now, this one isn't filled out 'cause I'm using just
the out of the box template from SolidWorks
but you'll want to fill this out taking into consideration
what the manufacturers can actually accomplish.
So, it's one thing to be able to just go
onto this dimension and adjust its tolerance and precision.
But you have to know that the manufacturer
on the other side can actually create
and then inspect to that dimension as well.
So, you really got to think about that.
GD&T is an overarching area, has a lot to it.
It takes years to really get down all of the exact things
when it comes to all the different ways
you can manufacture parts and inspect parts.
But, again, if you communicate
with the people that you're working with you'll be able
to determine what tolerances and precision will work
for the parts that you're trying to make.