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Organic Surface?
Cache_River_Mill
Member Posts: 225 PRO
Needs some organic shaping on the face of the leaves. Anyone have a solution to do this within Onshape? I can export it as an stl and shape it, but it would be amazing to keep it as a SolidWorks file.
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https://cad.onshape.com/documents/2c277b8c65f802c616cd16d4/v/8460dd533e59ecf92219c86b/e/cf6e6e7f9227d2ebbc72d1fa
I'd recommend using split face first to give yourself some workable pieces, then applying sculpt. If you need to do patch-work at the end, Onshape's native (month-old) fill surface tool is great for that.
Naturally, any tool which provides artistic surface embellishments, like sculpt, has the possibility of looking poor when you make upstream changes, since your modifications are defined on parametric points of a surface, and the parameterization could shift underneath you. However, if you're okay with touching up pieces of sculpting, this can get you rolling without converting away from the underlying B-rep format.
@maximilian_schomm @kevin_o_toole_1 oole_1 , I can't seem to select features from the face for a re-edit.
https://cad.onshape.com/documents/8f92f8d5efd246729c42b2a0/w/292662225264a53fef180613/e/316fc7a70248bed8f0a38a40
Twitter: @onshapetricks & @babart1977
The split face was on a diagonal line, and, naturally, what you wanted the tool to do was keep that line in place as you sculpted, joined with the rest of the body. Unfortunately, the sculpt tool remaps the whole UV rectangle it shows, which changes the geometry along your split line, and causes the underlying replace-face to fail.
A simple workaround is to make sure you only split faces along the UV lines that parameterize the face. For a planar face, this pretty much always means global verticals and horizontals. I've made that change here and the feature works fine:
https://cad.onshape.com/documents/ee34d5bf0d7b9889a6678d13/w/706477875bf94219494f9f62/e/c62c78192c045ced204f813c
The other half of this workaround is: when you do need to split things up along different lines, split the whole part, then use fill surface to patch things up afterwards.
Obviously neither of these workarounds are ideal. The only real fix would be totally rewriting this feature to into one which does enable preserving those end conditions. Onshape is currently working on improving our surface modeling capabilities across the board, but our main focus will be on surfacing tools that are robust and parametric, rather than more freeform tools like this. So I wouldn't hold your breath waiting on any improvements to this particular custom feature.
Twitter: @onshapetricks & @babart1977
However unless I can manipulate the shape of the grid, it will be difficult to use well. The Grid shape is very important. Needs to flow with the shape of the leaf.
I was able to sculpt the correct shape of the leaves as an STL, but that's not what we need. If the grid were adjustable, this same shape could be obtained with the SF feature.
Sculpt now also works with Cylinders and other closed surfaces!! (It doesn't work with spheres or doubly closed surfaces.)
Hope this helps! If you have any more suggestions send them my way!
Maximilian Schommer
Is it possible that you can select more than one handle at a time? and give parameters to the movement off the handle's.
Would be great.
Thanks, Dick van der Vaart
I will apply this to my work and keep you posted.
After using it, I have some feedback. The feature works great, we so appreciate this!
Here are some suggestions that would make the feature much easier to use:
Again, thank you so much.
Cache River Mill
figure 1 figure 2, Adjusted mesh figure 3, xy manipulator
Max, would you be interested in modifying this featurescript for us if we were to pay you for it? If so what are your rates?
Thank you
See the PM I sent,
Maximilan Schommer
By the way, other than the manipulator arrows themselves, FS features don't have any "early feedback". That is, the feature will not return anything until it's finished, so even if the loft lines have been "calculated" earlier, they won't be displayed.
The workaround we've found works well for this is to give your feature a checkbox for "Quick-drag mode". When it's checked, only calculate the splines, and when it's unchecked, compute the full loft.
IR for AS/NZS 1100
IR for AS/NZS 1100
It seems you got the sculpt face featurescript working with the "quick drag" mode,
Could you make a version so we could try it, please??
IR for AS/NZS 1100
Sorry about the long time in updating/responding. I've finally updated sculpt surface (it has the "quick drag" mode now, for one), I just posted a new discussion in the Featurescript category with more details about the update.