What Does R34 2 PL Mean in an Isometric Drawing?

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SUMMARY

The term "R34 2 PL" in isometric drawings refers to a radius of 34mm applied in two locations, indicating symmetry on both sides of the casting. The profile consists of an arc segment with a quarter-circle shape that merges into a vertical line. The vertical distance from the top to the bottom of the curve must be 60mm, confirming the impossibility of a 34mm radius in this context. The discussion clarifies the interpretation of the notation and its implications for design accuracy.

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Engineers, designers, and drafters involved in technical drawing and casting design will benefit from this discussion, particularly those working with isometric representations and geometric specifications.

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E2Lb749.jpg
I'm confused about "R34 2 PL" means.
I'm guessing the radius of the round is 2mm and the curve is a quarter of an ellipse like so:
lR1OTEh.png
Am I right?
 
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It should mean radius 34 in two places - ie same on right and left locations on casting . Actual profile is made up of an arc segment of the given radius and there may also be short sections of straight run off lines .
 
Nidum said:
It should mean radius 34 in two places - ie same on right and left locations on casting . Actual profile is made up of an arc segment of the given radius and there may also be short sections of straight run off lines .
That's what I thought but a radius of 34 is impossible because the vertical distance from the top to the bottom of the curve has to be 60
 
It's a quarter circle merging into a vertical line .
 
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Nidum said:
It's a quarter circle merging into a vertical line .
Ah I got it now. Thank you for your help
 

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