topic Repair a face in Fusion Design, Validate & Document Forum

Repair a face

mtriffon — Fri, 09 Mar 2018 20:03:32 GMT

I am trying to rebuild an organic shape by fixing the faces. I had to delete certain features and the patch command lost the geometry I wanted to keep.

I am able to select the face but can't seem to find any tools to work with it. Can someone suggest an approach? A screen shot is attached.

Thank you.

Re: Repair a face

laughingcreek — Sun, 11 Mar 2018 00:56:41 GMT

Have you tried to applu a "patch" from the patch work space?

If you attach you model you'll get more specific answers.

Re: Repair a face

mtriffon — Sun, 11 Mar 2018 06:50:00 GMT

As I mentioned in the first line of my message, it's the first thing I tried but I lost the geometry. I can select the face but can't seem to do anything other than that.

Please find the model attached.

Re: Repair a face

laughingcreek — Mon, 12 Mar 2018 02:42:28 GMT

This model has some strange stuff going on with the face edges. Was this originally an iges files that had all the surfaces stitched together in fusion to make it a solid?

I tried a number of the usual things for repairing, but the model generally behaves in a strange way. And at one point I got an error message I had never seen before (see pic)

Do you happen to have the original file you could post. I suspect this is related to the stitching tolerances for surfaces. for instances, I couldn't even split the thing in half the way it was. I had to unstitch it, scale it up, and then re-stitch it back together before it would split.

I think you should bring this to the attention of AD on the support forum.

Here's that error message I got when trying to loft with a curvature edge setting-

Re: Repair a face

I_Forge_KC — Mon, 12 Mar 2018 16:25:38 GMT

Its a little tedious to trim up the faces, but since this has a uniform thickness, you can delete all the exterior curved faces and then just do a surface offset.

Looks pretty good...

Re: Repair a face

mtriffon — Mon, 12 Mar 2018 19:01:00 GMT

Do you mean thicken? I did that and that certainly worked but I ended up with a patch on the inside. Is that what you meant?

Sorry but I am a beginner. Can you explain step by step?

Thanks!

Re: Repair a face

mtriffon — Mon, 12 Mar 2018 19:06:36 GMT

Wait, never mind. You mean a press pull of an offset face. I think I did that also. Will try again.

Re: Repair a face

I_Forge_KC — Mon, 12 Mar 2018 19:14:02 GMT

Thicken and surface offset are siblings.

The offset command takes just the surface data and moves it away from the source by your specified value. This does not connect the surfaces in any way. The thicken command does the same thing but does connect the surfaces with end faces (which results in a solid).

In either case you'll be left with some oddness because the mounting lugs are currently a surface feature since the two holes make it non-manifold.

I'm about to head out to a meeting in a few. When I return I'll fire up Screencast if someone hasn't come along and shown you by then.

PS - the model only appears symmetrical from a distance. Where the mounting lugs interface with the sweeping curve is different on both sides. This makes the trimming even more tedious. Use my model if you need to.

Re: Repair a face

mtriffon — Mon, 12 Mar 2018 19:15:18 GMT

I am playing with it now and running into the fillets problem. I await your return.

Re: Repair a face

mtriffon — Mon, 12 Mar 2018 19:31:44 GMT

Ok all is good now. The only thing I want to do now is alter the ducts to make them wider and change angles. What is the best approach? Sculpt mode and .....?

Re: Repair a face

mtriffon — Mon, 12 Mar 2018 19:36:01 GMT

Here is the original file you requested

Re: Repair a face

mtriffon — Tue, 13 Mar 2018 01:33:48 GMT

I went into sculpt and converted B-Rep to T-spline to edit the model and must have done it wrong. Please see attached for result.

What would be the easiest way to rework this model? Redo it?

Thanks!

Re: Repair a face

laughingcreek — Tue, 13 Mar 2018 02:50:17 GMT

I would probably rebuild it. But you could also defeater/remove the bits you don't want and add new ones.

Re: Repair a face

mtriffon — Tue, 13 Mar 2018 11:57:29 GMT

Thats exactly what I did and I had it completely finished yesterday, except for moving the legs out. Then I lost ALL my days work! But back to the matter at hand:

Once I had the model complete, I wanted to move the legs out a little. From the Sculpt workspace I converted the model from Brep to T-Spline and got a crazy result I don't understand. I attached a picture to my earlier post.

I put in over 200 hours in the last 3 weeks to learn Fusion and it is amazing. I feel pretty comfortable and have designed a few things from scratch using linear modeling. Organic shapes seem to be my next challenge. Am I better off in Meshmixer and importing? If so what is the best strategy?