Angle precision plugin

[DaveR]

There’s no way you can maintain tolerances like you are referring to in those materials. I think you need to get some realistic expectations.

[john_mcclenahan]

@Xyeicroft

when I make a very irregular triangle and I record the angles based on the displayed precision and try to recreate it with the protractor using the recorded data, the lines will never connect

Could you post an example? One complete drawn triangle, with measured angles to three decimal places (use the Angular Dimension2 plugin) and one dimensioned length.

And also a ‘failed’ attempt to draw the triangle with length and angles.

If it is a triangle, one baseline and two angles should specify the third vertex exactly enough with at most two or three decimal places in the angles. Especially at the small dimensions you are workng with. If the lengths were hundreds of km, I could see your problem potentially arising, but not with a maximum length of 8ft (<3m)

Maybe you aren’t rotating the lines ‘in plane’?

@Xyeicroft

I had to use external tools that convert sides to angles.

What tool? I don’t quite understand what ‘convert sides to angles’ means.

[Geo]

@Xyeicroft

My problem with SU is that their linear measurements are so precise that when I make a very irregular triangle and I record the angles based on the displayed precision and try to recreate it with the protractor using the recorded data, the lines will never connect with each other and a plane is never formed.

I had to use external tools that convert sides to angles.

Precision part layout via angle measurement is an inherently inaccurate approach.

Triangles (linear dimension) define angles.
Protractors (angular dimension) can only approximate angles.

Thus, the existence of Gauge Blocks and the Sine Bar…

Gauge block

Sine bar