Inventor General Discussion

Inventor General Discussion

Distinguished Contributor
Posts: 908
Registered: ‎05-09-2005
Message 11 of 16 (243 Views)

Re: Calibration of CAD software

10-23-2012 07:51 AM in reply to: karthur1

Export a model in a neutral format and verify that file in (something else)? But then, how do you verify / calibrate that (something else)? It's turtles all the way down.


Maybe ask Autodesk for some sort of certification, but I bet somewhere in the 1-point EULA text is something along the lines of 'don't bother asking, pal'.

Inventor Professional 2014 64 SP2
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Distinguished Contributor
Posts: 141
Registered: ‎07-29-2011
Message 12 of 16 (235 Views)

Re: Calibration of CAD software

10-23-2012 08:03 AM in reply to: kstate92

Next they are going to ask you how you calibrated your calculator. This seems totally crazy to me.

PDS 2014
PDS 2015
Distinguished Contributor
Posts: 270
Registered: ‎12-15-2003
Message 13 of 16 (214 Views)

Re: Calibration of CAD software

10-23-2012 08:56 AM in reply to: kstate92

Thankfully we have never had to deal with this "calibration" question.


Thinking about this I've realized we do have something that could be used to verify the accuracy of our software.

We make a variety of parts that are waterjet cut from steel plate. Typical we produce our part and drawing in Inventor and then save a copy of the Inventor drawing as an AutoCad drawing. The AutoCad drawing is imported into our vendors waterjetting software to be used as a template.


The fact that the finished parts can be physically measured and found to be accurate should verify that our software is accurate. Of course I guess you have to take into account the accuracy of the waterjet process, which is pretty hig but like any manufacturing process not 100%.


Finally, I agree with the others that have stated that this is a silly question.


Richard in Houston

*Expert Elite*
Posts: 2,538
Registered: ‎09-13-2011
Message 14 of 16 (203 Views)

Re: Calibration of CAD software

10-23-2012 09:29 AM in reply to: hfds006

CAD is all math. 2+2 will equal 4 no matter what means you use to calculate it. You can't measure math, you can't calibrate it, it just is what it is. Are you going to suggest that if you were to calculate 2+2 on a really mega-fancy pi calculating calculator that can go out to 2000 places, that 2+2 might actually come out slightly off from 4?

Mike (not Matt) Rattray

Valued Mentor
Posts: 504
Registered: ‎10-22-2008
Message 15 of 16 (197 Views)

Re: Calibration of CAD software

10-23-2012 09:51 AM in reply to: mrattray

2+2 = 4 only for civilian work, when you work for the government, then it equals whatever the committee formed to evaluate it says it equals.

Mike Patchus

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*Expert Elite*
Posts: 2,538
Registered: ‎09-13-2011
Message 16 of 16 (190 Views)

Re: Calibration of CAD software

10-23-2012 10:09 AM in reply to: mpatchus

In that case, 2+2=5! :smileyhappy:

Mike (not Matt) Rattray

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