topic Re: Hole Measurement Problem in Inventor Forum

Hole Measurement Problem

ekadiroglu — Wed, 30 Jun 2021 10:48:52 GMT

In the measurements from hole to hole in the picture below, a delta measurement appears after the comma in different axes from time to time. (0.000000000175mm)
This is especially true for threaded holes.
Anyone have an idea about it?

Thanks,

Best regards,

Re: Hole Measurement Problem

JDMather — Wed, 30 Jun 2021 11:12:13 GMT

Attach file here.

Re: Hole Measurement Problem

ekadiroglu — Wed, 30 Jun 2021 11:27:32 GMT

I dont see any attachment,

Re: Hole Measurement Problem

johnsonshiue — Wed, 30 Jun 2021 18:41:39 GMT

Hi! Inventor 3D body geometry should be accurate up to 0.00001mm. Any higher decimal places could be numerical noise. However, for precise model 0 should be 0. 0.000000000175mm does not look like a noise to me. Please share the ipt file. I would like to take a look.

Many thanks!

Re: Hole Measurement Problem

SharkDesign — Wed, 30 Jun 2021 20:38:04 GMT

Has to be a modelling error unless it's a bug.

Is your rectangle drawn square to the origin in the first place?

Re: Hole Measurement Problem

ekadiroglu — Wed, 07 Jul 2021 07:45:48 GMT

Hi,

I attached the file for measure problem form hole to hole with threat,

Thanks,

Re: Hole Measurement Problem

SharkDesign — Wed, 07 Jul 2021 07:51:37 GMT

It's a step file so there are no threads

Re: Hole Measurement Problem

SharkDesign — Wed, 07 Jul 2021 07:52:56 GMT

I measured all the holes I think and I don't see any discrepancy, even on all decimals precision.

Re: Hole Measurement Problem

johnsonshiue — Wed, 07 Jul 2021 19:24:48 GMT

Hi! Many thanks for sharing the file! I tried measuring the distance between two holes. I see that when two cylindrical faces are selected, the minor numerical noise can appear in one of the offset values. But, the same thing does not happen if circular edges are selected. The behavior seems to start from 2022. Attached is the same file imported to 2016 and I was not able to reproduce the behavior in 2021 and earlier releases.

I need to work with the project team to understand it better.

Thanks again!