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BT_107805416-Contributor
6-Contributor
December 4, 2023
Solved

Creo inputs and output

  • December 4, 2023
  • 1 reply
  • 2128 views

Are there any ideal parameter's that we need to pass from Creo Parametric to engineering notebook (Mathcad worksheet) and relatively the input parameter's from engineering book to Creo Parametric? I want to design helical gears and do the calculation part in engineering notebook can this be done? 

Design with engineering notebook 

Best answer by ChrisKaswer

I have a solution to make sure the units coming back from Mathcad Prime get converted to the Creo units set in the CAD model - courtesy of PTC experts! The trick is to make sure you check the box for 'Unit Sensitive" here:

ChrisKaswer_0-1701895614303.png

One important thing to make sure you do - before you establish the Mathcad Prime link and push values back into Creo, you must first define any Creo parameter that will be set by values coming back from Mathcad - before they come back for the 1st time. This way you will be able to select the unit you wish them to be set to before the Mathcad push sets it to whatever they are on the Prime side. This first-time definition of the value can simply be "zero".

1 reply

S
SweetPeasHub17-Peridot
17-Peridot
December 4, 2023

Yes, Creo does this.

 

https://support.ptc.com/help/mathcad/r9.0/en/index.html#page/PTC_Mathcad_Help/about_mathcad_and_proe_integration.html

 

1. Create the embedded Mathcad using the Creo Applications tab - mathCad icon

2. In mathcad there is an area called integration on the Input/Output tab where you assign input and output regions and the show as list command to review/change the alias.

SweetPeasHub_1-1701702129226.png

 

3. Save and push from Mathcad.

4. Review Creo parameters (look in embedded MathCAD)

SweetPeasHub_2-1701702249727.png

 

Place in relations using the insert parameter button to parametrize your model. (or note the syntax as ALIAS:MATHCAD )

SweetPeasHub_4-1701703318248.png

Its not smart about units, does not auto convert from the m to mm.

Units from MathCAD were set to SI. It does not account for my worksheet showing the units as mm.

C
ChrisKaswer16-Pearl
16-Pearl
December 4, 2023

This unit issue is something we've run into very recently - I've engaged Creo technical experts and Mathcad leadership about the default system units and its potential incompatibility with Creo units. For now, we seem to be stuck with using units in Creo that are identical to what can be selected in Mathcad Prime as the default system unit set.

 

I'll try to remember to post here again if/when we see a resolution to this conflict...I hope sooner than later!

    C
    ChrisKaswer16-PearlAnswer
    16-Pearl
    December 6, 2023

    I have a solution to make sure the units coming back from Mathcad Prime get converted to the Creo units set in the CAD model - courtesy of PTC experts! The trick is to make sure you check the box for 'Unit Sensitive" here:

    ChrisKaswer_0-1701895614303.png

    One important thing to make sure you do - before you establish the Mathcad Prime link and push values back into Creo, you must first define any Creo parameter that will be set by values coming back from Mathcad - before they come back for the 1st time. This way you will be able to select the unit you wish them to be set to before the Mathcad push sets it to whatever they are on the Prime side. This first-time definition of the value can simply be "zero".

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