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Mirrored and Patterned Sketches do not Appear to be Closed

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Message 1 of 5
neljoshua
1407 Views, 4 Replies

Mirrored and Patterned Sketches do not Appear to be Closed

As the tile says, I created a sketch entity and attempted to pattern it.  Although the original instance is closed, I am not able to select the patterned instances for extrusion (as though they were not closed).  I attempted to create a mirror with the same results.

 

Has anyone else experienced this?

 

http://autode.sk/1Nc9GfA

 

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Lenovo Thinkpad P1, 2.70 GHz Intel Xeon, 32.0 GB, Windows 10 Pro
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4 REPLIES 4
Message 2 of 5
TrippyLighting
in reply to: neljoshua

Nope. I do noticed though that you have no components in your mechanical design with violates Fusion 360 R.U.L.E #.1 Create a component and activate the component.

OK, I just made that up 😉

But really, the first step for any mechanical design should always be to first create a component and activate it pefore adding sketches to it.

The learning section has a great section that explains the distinction between bodies and components. 

 

I redesigned my first design in Fusion 360 3 times to get that right.

 

I noticed further on in your video that you extrude the plane that you sketched the elongated holes on earlier but only one one the holes appears. If you want to add a profile for extrusion to what is curently selected, hold the CMD (mac) or CTRL(Win) key while attempting to do so. That works in many places in Fusion 360 if you want to add something to an existing selection.


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Message 3 of 5
HughesTooling
in reply to: neljoshua

Yes I've seen this a few times, the trouble is arc end point seem to come apart unless you add a coincident constraint. They should be one automatically created when you sketch but they don't seem to work. The only way to guarantee end of arcs stay attached is to draw them short so they don't touch then add the coincident constrain to pull the ends together.

 

Here a screen grab after the mirror, the white dots show the profile is open.

Capture.PNG

 

Mark

 

 

Edit Yes this bug has been reported a couple of times.

Mark Hughes
Owner, Hughes Tooling
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Message 4 of 5
neljoshua
in reply to: HughesTooling

Thanks for the tips.

 

 

I see now the issue with the open profiles.  I am incorrect in assuming that a fully dimensioned and constrained sketch should produce fully dimensioned and constrained copies when patterned or mirrored?  If not, of what use is this feature?

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Lenovo Thinkpad P1, 2.70 GHz Intel Xeon, 32.0 GB, Windows 10 Pro
Message 5 of 5
HughesTooling
in reply to: neljoshua

It has been reported as a bug with the auto generated constraints. If you draw the shape with a gap between all the lines and arcs and add the constraints manually it should work, it just seems to be a problem with arc end points that are snapped to another profile.

 

Mark

Mark Hughes
Owner, Hughes Tooling
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