TRYING TO CUT INTO CURVED SURFACE

[Anonymous]

So, I projected a 2D sketch onto this curved surface, now I'd like to make cutouts on it.

This guy does it, but the video is in Vietnamese (I think).

https://www.youtube.com/watch?v=3Zkswy4XlR8&nohtml5=False

Anyone know how to do it? Part attached as well.

Thanks

[JDMather]

I would probably do it differently - but using what you supplied....

[Anonymous]

so what's the better way? 

[PaulMunford]

Use the trim surface command.

[Anonymous]

I can't get "THICKNESS" to work.  If I tell is 2mm, it works.

[Anonymous]

Every time I try that command I get this message.  What am I doing wrong?  BTW, I have your book on order.. shipping from Botswana apparently (taking a long time).

[JDMather]

You have multiple issues in this image.

 Assuming Thickness = 1mm

and

assuming implied multiplication was permitted in Inventor equations.

1. You would have Thickness*1mm= 1mm*1mm=1mm^2, which, of course, does not make sense as a valid parameter for a thickness.

2. If you had Thickness mm you would still have invalid units as the units are already in the variable definition.

Write it out by hand on pencil and paper and you will see.

[Anonymous]

I don't see the equation this is being plugged into.  Where is that?

I was trying to duplicate what you did.  You part has "thickness".  I found "thickness" from a drop down of parameters, which I assume is where you got it, then it changed itself to add the 1mm on the end.

Thanks

[Anonymous · Accepted solution]

couldn't you also... (see attached)

[Anonymous]

Thanks, that's a cool way to do it.  It seems to get "thickness" which your feature had as well, I need to delete off the "=1mm" manually in the dialog box.  I appreciate the help!

[Anonymous]

---

@Anonymous wrote:

Thanks, that's a cool way to do it.  It seems to get "thickness" which your feature had as well, I need to delete off the "=1mm" manually in the dialog box.  I appreciate the help!

---

Yeah since "Thickness" is the name of an existing parameter, it automatically has the value of 1mm carried with it. You can do that, however, the first time you enter a dimension or input in a feature to rename that parameter on creation. You do need to have Edit Dimension on Creation checked in your application options though. But that allows you to give a parameter a unique name (for referencing later) as you're creating your model instead of renaming or going off some "d#" reference. In other words, create new dimension, in edit prompt type "Length = 36" then when placing a dimension later on, you can simply type in "Length" if you want for that dim to always match the parameter named "Length"... or "Length*2" if you want it to be doubled and so on.

Have a good one.

[Anonymous]

Thanks for the tips.  I have yet to get into any parameter driven stuff or ilogic, but that's an easy place to start, I will try it out.  Thanks for the help!