Practical surface modeling tips and tricks - good curves and diagnostics are your friends

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Practical surface modeling tips and tricks - good curves and diagnostics are your friends

Рет қаралды 6,696

Күн бұрын

Join me behind the scenes for another of my single-take rehearsals for demos that I am prepping for, test-driving new concepts, or generally practicing. Usually recorded late after all my normal work is done, you might enjoy some of the tips and tricks I hope to offer.
There is so much to show for Onshape's surfacing capabilities, especially given the huge number of enhancements dropping every 3 weeks. Since mid-2022 up until today (June 2023) we've drastically increased the depth and breadth of surfacing in Onshape.
Here are a few little snippets that demonstrate just a few of the new, old and useful things... emphasis on diagnostics, Bridging curve, Boundary surface and some other goodies.
The completed (clean) model is in the public doc: cad.onshape.co...

Пікірлер: 13

@evanareese Жыл бұрын

I’d love to see a deep dive on Face Blend specifically. There are so many inputs and options to wrap my brain around!

@gregbrown-onshape7555 Жыл бұрын

Yes I can definitely look at doing some deep dives down the Face blend rabbit hole... There's a lot to unpack!

@olmosbananas 6 ай бұрын

this is pretty awesome. surfaces are still something i never use since im still relatively new to the game, but looks like a great tool to have.

@gregbrown-onshape7555 6 ай бұрын

That's great! You know a lot of people don't realize the depth of the surfacing tools we offer. They are so well integrated into the rest of the Part studio that it's easy to skip over them since they are not sticking out in their own. Once you know though...

@FTCHub-EpicVault 8 ай бұрын

Love your content!!

@Amanda-ut7gx 2 ай бұрын

your videos are the most helpful out of what I could find so far! extremely underrated :) could you make a video that goes more in depth on how to strategically place curves when modeling objects (e.g. phone case, game console, car hood, etc.) Whenever I try to surface model complex shapes, I often end up with strange, unwanted creases in certain areas. This happens because I'm not sure how to properly set up the curves or which tool to use-whether to go for a boundary surface or a loft. Seeing it visually and understanding the reasoning behind it would help a lot!

@gregbrown-onshape7555 Ай бұрын

A really good comment - thanks for the suggestion. It is pretty hard to generalize completely the approaches. There are some nice guides (especially the Alias Golden Rules -- this one has been duplicated in various systems but the approaches are all equivalent) but it's going to depend on the part you are designing. A toaster, a cell phone, a car will have different challenges. There are nice "patterns" (approaches) you can utilize to tackle specific challenges - the topology you end up creating will make or break the design. I'll think more on this and see what I can come up with.

@yasokada1 3 ай бұрын

Zebra stripes UI is now located at the bottom right.

@gregbrown-onshape7555 3 ай бұрын

Yes we consolidated the analysis toolset to the lower right - including zebras, but also for example curvature color map, dihedral, and more.

@bibliotek42 5 ай бұрын

I've only been using onshape for a week but am really impressed so far! I've spent about 4 hours trying to recreate your horn but I can't get the loft function to work. Is it possible to see your file so I can see what settings you used? Thanks for sharing your expertise!

@gregbrown-onshape7555 5 ай бұрын

Sure, I'll add a link in a moment.... check the description.

@johnnydfred 5 ай бұрын

Can these types of line aberrations occur from projecting a new control line from 2 previous lines?

@gregbrown-onshape7555 5 ай бұрын

Yes, projecting two clean sketches can certainly result in something that is quite "busy" in terms of the underlying mathematics. The geometry kernel (in our case Parasolid) will determine the projected spline and place the control points and knots accordingly. It is up to the user and/or application to determine if they want to reapproximate, simplify, rebuild it... Depending on the downstream use this may or may not be necessary. In the initial case I showed it was a truly nasty curve, and I'm not certain how it got to be that way! (I don't know the source of the original data) In my case, rebuilding using clean curves was the easiest route.