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Best Of
Re: Fillet or Face Blend on Icosahedron
@l_m724 This is a challenging shape.
Fillet can struggle with intersections of a lot of edges. I was able to get it to fillet, though I'm not 100% happy with some of the artifacts (like the wavy surface break where the spout meets the body). To get this where I'd like it I think I'd end up doing a lot with surfacing tools and it would be a pretty different approach. Here's this one anyway. I was able to shorten the feature tree considerably. A few other notable things I did:
- For starters there's a Polyhedron custom feature already, which will save you making the icosahedron yourself. ( @_anton your WIP looks awesome too!)
- I used my custom feature Selection Fillet to batch some of the selections, but for that reason, I wanted to fillet before the Shell feature, but also not bother shelling with the fillets, so I made my own "shell core" using another method, which I later subtracted. You could also just use the native Fillet feature.
- Keeping some bodies separate to fillet first and boolean them together later can be a helpful strategy sometimes.
- I used a variable called #radius so that I only need to change it one place if I want to update the fillet radius. In your model, you had 40 fillet features, so this would be even more valuable if you're doing it that way.
Feel free to ask questions.
Re: Looking for freelance CAD help – sheet metal experience preferred
Hey Martin, our designers have deep experience at highly reasonable prices. All North America-based. Feel free to reach me at keith@cadsharp.com to discuss further. In particular, please share your location, anticipated project length and hours per week, and other relevant skills needed.
Here's more about our Onshape mechanical design services.
Re: Create surface from perpendicular sketches? (making 3D printed mask)
@MichaelPascoe That's 90% the plan, with one clarification. I'm planning to operate on the control points and knots of the surfaces directly instead of attempting to work with the UV curves. Takes out two layers of abstraction and should leave me with just a bunch of coordinate transformations.
That's why curve tween is step 1. I need to build my neutral axis and parameterize the control point locations to "tweenspace" so that I can do that operation in reverse after an edit curve step.
Re: Create surface from perpendicular sketches? (making 3D printed mask)
That's a lot of comments, a whole lot to take in and read about! I've only switched from Tinkercad to Onshape a month ago for IGCSE, jeez!
Here's some progress, because I'm sure people are wondering.
Drape Surface for the WIN, jaw is next, thank you all very much. There will most likely be more to come.
Re: Creating a point on line intersect on sketch plane is not working.
Try using a Pierce constraint between a sketched point and the line from the previous sketch (i.e. don't "use" it)
I've highlighted this in the constraint manager:
Re: Adding part to assembly via API
It would help to know the body you are using for your request. Your body is probably the problem.
I know you can do it with just:
documentId
versionId
elementId
isWholePartStudio=false
isAssembly=true
configuration={config if applicable}
You might be adding extra parameters that you don't need to add. The API can be a bit fussy if you include unnecessary parameters
Re: How to change which side partial fillet offset offsets from?
I think an easier way is to use an "Entity" as the Partial fillet end type. This entity can be a plane or Mate connector or others. In the case below I created a Mate connector offset from the end I wanted to measure from:
I think I have broken a context
I have a little assembly with lots of similar parts lined up at certain distances from each other. For production purposes, I wanted to make a lasercut jig, so they could all be easily positioned in place while the glue sets. Easy enough.
I did not want the jigs to be part of my assembly, though. So I designed them in context, but kept them in their own document that resides in a "Fixtures and Jigs" folder which has a shared link (accessible from the laser cuttung workshop), other than the assembly. Assuming the context would be established via the in-context sketch, I later deleted the jigs from the main assembly, because they were not meant to show up in any drawings and BOM anyway. Everything looked fine so far.
After a while, I needed to increase the thickness of some of the lined-up parts and therefore the jigs needed to be updated. I noticed, that after making these changes and creating a new version, my in-context jigs did not follow. I get a little blue dot indicating there's an update, but when I update the context, someting strage happens: I get a message asking me to set primary instance of context …
… but there is no menu item for doing so in the context menu.
If I go to the assembly, there is no trace of the context whatsoever …
… and consequently no item in the instance list and of course no context menu, too. I cannot set primary instance there as well. So I ran into a dead end.
Could it be the context management has just lost it? And if so: Is that a bug or did I do someting wrong? Is it because insertion of in context objects does only work on surfaces and bodies, not on sketches? Would that mean we shouldn't expect context based on just sketches to ever update with design changes? That would make the concept of in-context sketching questionable, then.
For tis time, I'll probably have to make new jigs, but I'd like to avoid such turbulences in the future.
Re: How to revert to a previous version?
Yes, it can be done from the list view that shows all the documents. Versions and History, and their related abilities, are available there, without the document being open.
