Hi
I wondering if anyone has had any past experience with problems with visual inspection of their components. We manufacture components to ASME Y 14.5 drawings.
Does anyone know with keeping to the standard what is deemed standard practice for visual inspection. For example if you had a...
Hi
Please see attached sketch.
This is rough sketch of a perpendicular callout. In principle the perpendicular call out here is ok. The issue with measuring purposes although no sizes giving is the length of Datum A axis.
Can anyone explain why you cannot measure the plane perpendicular to...
Hi all,
If you have 2 planes features which create a mid plane Datum B. If the print asks for the planes to be for example 50mm width ± 0.02.
Where do you take the measurement for the 50mm width ?
These planes are perpendicular to my Datum A.
So I thought I would have two simulators...
Hi guys,
See attached picture.
I am looking for how profile tolerance application differs from a feature of size to a single surface ?
If i looked at the attached sketch I always assumed, whilst the part was constrained with datum features A + B + C we would have a theoretical Ø60 cylinder...
Hi guys,
I have a print with 4 dowel holes that are equally spaced around a cylinder. Not on the top face face, holes that are breaking through the the external shaft itself.
So at the moment the DFR is as follows,
Datum A ( Plane )
Datum B ( Internal Cylinder )
Datum C ( 4x side dowel...
Hi guys,
Looking back to a previous thread of mine.
I had 3 holes equally spaced on a PCD. This consisted of 2x Ø4 and 1x Ø3 dowel holes.
The DRF that fitted best after some discussion on this forum was the plane perpendicular to the dowel hole was Datum A, 2x Ø4 was Datum B and 1x Ø3 was...
Hi
Please find attached sketch ,
The sketch is simply to illustrate a 2x cylindrical shaft diameter as a common datum.
My question , as most of you guys are aware my experience with true geometric counterparts is limited. ( due to most of my inspection experience is on a CMM )
As this is a...
Hi
Please see attached quick sketch ,
Datum A would be one of the planes ( not shown )
Regarding the positional call out for the slot .
What would be the best way to think about / understand the basic dimension of 50mm.
It looks like a centre axis between the two radii, Although i hope i...
Hi ,
Please see attached sketch.
I am looking for advice on a drawing i have .
I have 3 holes with a callout to Datum feature A
As this is just a callout to A alone , theoretically could the holes be any relationship to each other ?
The 2x Ø4mm dowel holes will have to be positionally...
Hi ,
I have a couple of queries about the sketch i did .
Datum feature C would this be a derived line between the two axis of the radii at each end of the component
The True position call out ± 0.05 to Datum feature C , is this a valid call out ?
Thanks
R
Hi guys,
Please see attached drawing from our customer.
The drawing attached only gives me Datum A and Datum B .
As you can see there are a lot of features to locate and orientate to.
The functionality of the component is Datum B goes against the mating part , with the shaded holes on...
Hi guys,
I have spoken on this forum before about this exact same job .
The is two sets of coaxial cylinders .
Is controlling them using simultaneous requirements as showing on my sketch correct ?
I have a design engineer who is questioning how the relationship between the two set of...
Hi,
Regarding my attached sketch,
I have made Datum A ( the mid plane between the two end faces)
The two pocket feature that determine Datum feature B , has 2X position tolerance to |A| this should establish a pair of tolerance zones at 0 basic location relative to each other and 90deg...
If you were to dimension a drawing and the part had to be inspected in a restrained condition.
For example sitting against A Datum Simulator ( ground plate for example )
if the part had 4x holes ( BCD) which the part got clamped thru to restrain the component .
How to you then check the...
Hi ,
Whilst doing some research on the internet ( which can do more harm than good ) i did read with the Y14.5 2009 standard simultaneous requirements is not currently applied to orientation.
Anyone who has seen my previous threads about controlling two set of coaxial cylinders has been an...
Hi guys,
looking at the attached drawing,
Could anyone explain how three-segment composite tolerances work.
Where i fall short is just the general use of the positional symbol .
I have always seen perpendicular or parallel. So just trying to get familiar with using position to control...
Hi guys,
Can anyone point out any flaws you see with these call outs on this drawing.
The idea is the best way to control and dimensions 4 Cylindrical pockets / with the front and back being as close as coaxial as possible.
Thanks
Ross
Hi,
Can you have two Datum from the same Datum features.
See my drawing attached.
Datum C if from two cylindrical pockets axis and Datum B is the mid plane from the two bottom faces of the pockets .
Datum B and Datum C are from the same two features , is this okay ??
Also how / can you...
Hi,
Can any of you guys have a look at the drawing i have attached,
The 42mm width between two planes has a call out of 0.02 straightness with maximum metal applied to it.
This goes back to my other thread on allowing parallelism between two non datum features.
Could someone explain exactly...
