You can, but only in direct modelling mode. To switch over, click on the little gear in the bottom right hand side, at the end of the timeline, and choose 'Do Not Capture Design History'.
Then go to Modify > Convert, and select one of all faces. Then switch to the Sculpt environment and edit to heart's content 
Niels
Hello, actually you can do a conversion from BRep to T Spline at the parametric mode. You do not really have to stop recording. Just select "Create Form", then select "Convert" at the MODIFY menu and use the windows selection to select the whole solid. You can then modify the form. The Extrude Command at the "Create Formm Mode" is doing something a little different from the Parametric Mode (without create Form). But there is a different kind of Extrusion that you can use. You might not aware of that yet. Select a vertex, an edge or a face or all the faces of one side. Then select Edit Form, and when dragging the arrow you should press and hold "Option" first in Mac. This will change into an Extrusion command and it behaves a little differently. After that you can "Finish form" but beware, this way you ended up having the original body, which you might want to turn off the light bulb, and also a few unstitched planes. You can stitch them up by selecting Patch Mode and then select Stitch at the Modify menu and stitch up the unstitched planes. A few screen shots here. To modify more in TSpline mode you can try Crease, Uncrease, Insert edges, Slide edges etc.. Then perform a series of Edit form to get the shape you wanted.
1) A box is formed at the parametric mode, then select Create form, Select the whole solid and click convert. In the Convert box select "BRep". click OK
2) An Example of using Edit Form to extrude and edge. Select an edge, click edit form, press and hold "Option" then drag the arrow. You will extrude the edge.
3) Select all the faces of one side, and select Edit Form, Pressing and hold "Option" then drag the arrow. A block of faces will be extruded out.
4) Then Click Finish Form. You solid is changed. But the Original Body is still there. You can play with the light bulbs. Just turn off the ones you do not want. The newly formed bodies are not stitched into a solid yet. Just unstitched planes. Select Patch Environment and select Stitch at the Modify Menu to stitch them together. A new solid is form. Your original unmodified one is still here. Just click the light bulbs right next to the bodies to understand the operatons more.
some screens shots to show you.
1) In the preference: Select Design History to be " Capture Design History (Parametric Modeling)."
2) If you had Stopped recording, right click on Browser and turn it back on. Click "Capture Design History" will turn Parametric Mode back on.
Actually Fusion 360 is by far the easiest 3D program for designer that I had found. Others are actually harder to learn.
Could you post a screen shot so we could better understand your goal?
If you are wanting to just edit a single face of the solid model, while keeping the precise shape of all other faces, then entering the direct modeling environment and using the Edit Face tool will allow T-spline editing of a single face. The t-splines will display as a large rectangle, but that’s just the tool being used to modify the face. Note that if you want to maintain your history you could copy the component (Save Copy As), work on it in another document, then re-import.
Converting the entire form to T-splines and editing faces will definitely lose your precision on the editied faces. How easy it is to hold precision on other faces may depend on the shape you are working with and what you need to do with it. The oversized faces you see on the converted form are just representations of the tools. When you finish the form they should resolve back to the actual solid.
When I have needed to do more extensive sculpting on a body, while keeping some aspects precise, I have often made a copy and converted that into the Sculpt environment, done the modifications, converted back to a solid, and used a chain of boolean operations to create tools with which to modify the original part.
Replace face could work if you can sculpt the face contour you want using t-splines, convert that to a surface, and use it to replace the face you want to modify.
There are probably many ways to do what you want, having a clearer idea about what you are working on would help us make better suggestions.
OK, that helps- I think this is exactly the sort of thing where Fusion excels.
Using Edit Face would be one option- depending on how complex and what shape the face needs to be, other workflows might be better.
For the Edit Face workflow, you need to be in direct modeling. Select the Edit Face tool (still in the Model workspace).
You are presented with a face to edit- you can adjust the number of divisions to give the level of detail required.
Use the manipulators, just as in the Sculpt workspace, to get the shape you want.
Finish with the tool, and you have the solid body with the edited face.
There are other tools available in the full blown Sculpt workspace, like bridging and creasing. So for some shapes reworking as a full on t-spline body and using Combine might be needed.
Hi Kingson,
I think your suggestion is much better overall, since by using the "Create Form" option in parametric mode you both keep history and have access to the full range of sculpt tools, like bridge, so you can make things like this. The Replace Face tool can be confusing, since without clues it's difficult to know which is the "source" face and which the "target".
I think the point about limited documentation for new users is apt, and in particular we should have more on how to combine sculpt and precision modeling, since that is an area where Fusion is very strong.
This is a very old thread, but maybe if you could be specific about what you are trying to accomplish we could help. Modeling solids and t-splines are fundamentally defined differently, Fusion makes it possible to work back and forth with both methods. If you are looking for mesh tools Fusion is probably not the right place, it's much more oriented towards workflows that end up with a need for precise modeling.
Type a product name
May we collect and use your data?
Learn more about the Third Party Services we use and our Privacy Statement. May we collect and use your data to tailor your experience?
Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.
Fusion
