solidworks approximation error

[sps]

Hello everyone,
I want to understand how much the approximation error of solidworks amounts and if what I have is such.

I have a cylinder on whose side walls I create two rows of holes aligned with the axis of the same, and blurred between them of an angle of 3.75°.
imposed the repetition of the two rows of holes for certain number but equispaced.

at this point, considering the mass center I find that it with lies on the axis of the cylinder, but it is on a plane perpendicular to the axis of the cylinder but distant from it of a value of 10^-4

Can I consider it zero, or is there actually a mistake? Is it a zero approximation error and/or related to the calculation of the mass center?
Can you tell me something about it?

Thank you.

 

[meccanicamg]

Usually errors like this are also made on the mirrors if something wrong has been done in the cracks.

 

[MassiVonWeizen]

if you attach the file, and specify the version, you could also analyze it and understand if there is, and where, a problem.

Why is it so difficult to attach images and files when there are so technical demands?

 

[sps]

here is a case where I have a 10^-5 error from the x axis (solidworks 2016)
View attachment cil.zip

 

[sps]

So no one can give me an answer?

 

[ceschi1959]

So no one can give me an answer?

an answer I have not but I have uploaded the file in nx, which as you know has parasolid as motor as sw, and also to me comes the shifted axis of the same order 3,....x10^-6 in x and 6,...x10^-6 in y
Hi.

 

[Gabriele SWX]

I confirm, even to me the axis is moved, but unless this cylinder should turn at 20,000 rpm I do not think that this value interferes. however actually the value should be 0.