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Angularity does not Locate
The Top Plate, in the caster wheel assembly (Figure 1) locates & Orients the two axle supports Figure 1 Partial Front View below (Figure 2),
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Hole Pattern as a Datum Feature
This tip complies with ASME Y14.5-2009, ISO 2692-2006 In many cases parts in an assembly are designed to mate simultaneously with more then one counterpart
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Straightness per unit length
Straightness and flatness per unit length are required when it is necessary to avoid sharp changes over a feature’s length or surface unit. Figure 1
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Symmetry & Center Lines are not the same
There is some confusion in the industry regarding Symmetry and Center Lines. I this Tip we will attempt to set things straight, as to ASME
Welded Assembly part 2
Reading a drawing – what are the permitted deviation limits? (ASME Y14.5-2009, ISO 1101:2012) This post is the second in a series dealing with a
Who’s afraid of Profile?
Tip in agreement with ASME Y14.5-2009 & ISO Standards At a recent visit in a machine workshop, one of the metrologists announced that “Engineering truly