topic Re: Close Loop in Inventor Forum

Close Loop

lkirit2000 — Tue, 11 Dec 2018 23:30:14 GMT

Hi,

Please see the attached profile sketch and images around the circle, when I tried to extrude solid extrude is success, error message shows open loop.

In the sketch environment I right click and and tried to fix the close loop, again error message pop up due to constraint.

( See the attached image ) and it is repeating ?

How to fix this issue

Rgds

Re: Close Loop

CadManagerMoffatNZ — Wed, 12 Dec 2018 00:13:55 GMT

Try changing the project geometry (yellow) lines to construction

Re: Close Loop

johnsonshiue — Wed, 12 Dec 2018 01:05:01 GMT

Hi! This is an interesting issue. I think the problem with the profile is that it is indeed open. Edit the sketch and zoom in to the vertical line with a dimension of 8.85 (upper left). The bottom of the line is actually not constrained to anything. You need to delete the dimension and add a coincident constraint between the line and the arc. Then the profile will be closed.

Many thanks!

Re: Close Loop

lkirit2000 — Wed, 12 Dec 2018 01:14:02 GMT

Hi Johnson,

Appreciate the quick response !

Thanks the problem solved.

I just wonder the I tried the close loop feature to fix the issue, it says there is a open loop but it hasn't pointed out or highlight which location !

The issue some thing like in a complex sketch will take a long time to zoom and check.

Rgds

Re: Close Loop

kelly.young — Wed, 12 Dec 2018 01:18:23 GMT

Hello @lkirit2000 you have a situation where it is almost over-constrained to where the set dimensions don't allow for the gap to be closed. Here is a screencast showing how to edit the setup and close the profile.

Please select the Accept Solution button if a post solves your issue or answers your question.

Re: Close Loop

lkirit2000 — Wed, 12 Dec 2018 01:48:53 GMT

Hi kelly,

Thanks for your explanation !

Great !!

Rgds

Re: Close Loop

harrelsontrumpets — Wed, 20 Nov 2019 03:16:24 GMT

The over constraint problem with Autodesk products makes them extremely difficult to use. I can design 10 times faster in Rhinoceros because the software doesn't add junk like this to my drawings. I am literally struggling on most organic designs in Inventor because of this persistent and completely unnecessary constraint issue.

Re: Close Loop

johnsonshiue — Wed, 20 Nov 2019 07:38:13 GMT

Hi! If possible, please share an example here or start a new thread. I am not sure I understand the issue from your brief description.

Many thanks!