ajlelectronics
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I am drawing a tumble dryer vent as an exercise. I have created the 2D sketch of it, but when I try to extrude, the selected part does that, but the rest of the sketch disappears!
- Thread starter ajlelectronics
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daedalusminos
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Fusion by default turns the sketch off when you create bodies.....just turn the sketch back on in the browser
Erie Fred
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yes, as above (post #2) the sketch goes invisible, and you can change the visibility.
But why ?
daedalusminos
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Probably an attempt to declutter the workspace. The fact that I rarely find it an irritation means that most of the time it's probably the right thing to do (for me)
Erie Fred
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Same here, but decluttering is turning the sketch OFF, not ON.
Dr.Al
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Most CAD packages hide sketches off automatically when you've used them. For some, there's an option so you can leave them visible if that's what you want (I've no idea whether Fusion has this option).
Why do you still want the sketch to be visible? Everything in your sketch has made it into the solid body as far as I can see. If you want to do the next extrude/sketch/whatever relative to the features of your sketch, you should reference the body features instead. Updates to the first sketch will update the body, which will then update anything referenced to the body.
ajlelectronics
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It does need to be made solid, but each part of it is extruded to a different thickness. When I extrude one part, all others become unselectable. I did manage to find the "switch" but it resets itself after each operation, which is very irritating.
Erie Fred
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Your method is not very good.
You should start a new sketch on the face the first extrusion, project the first sketch onto sketch #2 as reference features, and then build your second feature in that sketch.
1 sketch, 1 extrusion.
Brad93
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To draw that how fusion wants you to draw it you'd draw your base sketch, extrude, then select your new face, create sketch, then draw your next face to extrude, and so forth. you're drawing all sketches then wanting to extrude them all from one sketch.
Brad93
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You posted at exactly the same time haha
Erie Fred
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Nothing good can come from this......
ajlelectronics
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That is how it is done in Design Spark Mechanical and it seemed to be the most logical. I'm not getting on too well with Fusion, even a simple thing like saving an .stl to disc is eluding me. It only want to save it into Cura.
Misterg
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There is an option in preferences to change this behaviour: (Click on your user ID to get to preferences)
But, as others have said, don't try to do too much with one sketch. I don't always stick to the 'one sketch per feature' mantra, and will sometimes combine (say) a cross section and a hole pattern where it makes sense because life is too sort, and the timeline gets very cluttered. I still have F360 auto hide the sketches, and maybe have to turn them back on for another op ~10%(??) of the time.
daedalusminos
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There's absolutely no problem generating multiple extrusions from one sketch...you just need to know where to draw the line (pun intended)
In @ajlelectronics example I would definitely use a single sketch
In @ajlelectronics example I would definitely use a single sketch
ajlelectronics
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Thanks for that, sorted it. I have worked out how to save an .stl too now. If DSM hadn't taken away all the important parts, I would prefer to stick with it, but it is so ridiculously restrictive now.
I will look at a different way of sketching, but I can't see how having multiple sketches is going to be easier to build the item. It may just be that I have got DSM too tightly ingrained and perhaps that is harder than starting from sctratch.
Erie Fred
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Another reason for multiple sketches is for changes...There's always changes.
Dr.Al
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Out of curiosity I just tested a few different (and much better than Fusion ) CAD tools to see whether sketches were hidden by default:
) CAD tools to see whether sketches were hidden by default:- OnShape - Sketches are hidden by default - can't see a way to change this (not that I've ever wanted to)
- Solid Edge Community Edition - Sketches aren't hidden by default: I think this is due to it's slightly more SketchUp-like "Synchronous" modelling approach that is intended to allow more fluid and continuous dimension edits.
- Solidworks Academic Edition (not free) - Sketches are hidden by default - couldn't see a setting to change that
- ZW3D Lite (not free) - Sketches aren't hidden by default (but there's a setting to fix that)
- FreeCAD - Sketches are hidden by default
ajlelectronics
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Out of curiosity I just tested a few different (and much better than Fusion
I lke DSM, I have just outgrown its new restrictions.
Dr.Al
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I presume you're doing commercial stuff and hence can't use the free versions of OnShape or Solid Edge? I suspect that, coming from DSM, you'd find the Solid Edge "Synchronous Modelling" mode more intuitive than the "Ordered" modelling mode used in most parametric CAD systems like Fusion, OnShape, Solidworks or the "Ordered" mode of Solid Edge.
