Sketch is locked but I don't understand why

Sketch is locked but I don't understand why

awebber2FUZM
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Message 1 of 18

Sketch is locked but I don't understand why

awebber2FUZM
Participant
Participant

I'm sure this is trivially easy to fix (or else I did it in a way that it isn't) but I can't see how.

 

The shape is an ellipse (I drew 2 circles, connected by lines top and bottom). with a rectangle through the middle. Then I extruded to 3mm, filletted all the edges, and slapped an SVG on the face (I guess I created it as a new sketch). The SVG is too high and I'd like to move it down a tiny bit. But the sketch is locked and I'm not clear what's constraining the SVG.

 

2022-06-19 Alex Fusion Q.png

 

This screen capture shows just the one sketch and all the green lines are actually locked, I just showed one in black because I also don't understand what the purple lines mean in Photobooth environment.

 

Any hints on how to fix this would be appreciated.

 

Thanks.

=andrew

 

Accepted solutions (1)
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Replies (17)
Message 2 of 18

etfrench
Mentor
Mentor

Imported .svg files come into Fusion 360 Fixed(Locked) indicated by the green color.  Black indicates geometry is fully constrained.  The lock icon indicates the all of the geometry in the sketch is fully constrained. 

To remove the Fixed constraint, select the geometry, then right click and select Fix/Unfix from the context menu.

 

It is a best practice to fully constrain your sketches, but this can be difficult on imported geometry.

 

p.s. Purple geometry is projected with links to the original. To edit these, use the Break Link command on the context menu. 

p.s.p.s. The blue area indicates geometry automatically projected into the sketch.  In my opinion, all of the auto project settings in Preferences should be turned off.

ETFrench

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Message 3 of 18

awebber2FUZM
Participant
Participant

Thank you. Do have have to select all the individual green line segments (with CTRL) or is there a way to select them all (or a subset) at once? In this case there aren't that many, but since I'm moving the entire SVG down (not changing the SVG's makeup, i.e. I'm not moving the puck but not the sticks as an example), if it were more complicated and more work to select all these segments, would I be better just to kill it and reimport the SVG? After placing the SVG I just extruded it (first to emboss, didn't like the result to I incised/debossed/engraved/whatever the term is 🙂 ).

 

Thanks again.

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Message 4 of 18

etfrench
Mentor
Mentor

There are multiple selection options on the Select Menu😁

ETFrench

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Message 5 of 18

awebber2FUZM
Participant
Participant

I couldn't find anything that would let me select all the lines of the SVG at once (other than CTRL 🙂 ) so I went ahead and did it that way, in bunches. Only took a few minutes. But now while most of them are blue, there's one rectangle where the options (based on Fix/Unfix) are green or black. I don't see why this one rectangle would be black, it's part of the same singular SVG. This screen capture includes the sketch with the other geometry. Obviously not constrained, which worked out well as I tweaked the dimensions (even if bad practice).

 

2022-06-19 Alex Fusion Q 2.png

 

For some reason, the purple (representing the start/end of the "full round fillet" I guess) doesn't go all the way around. It's not serving any purpose for me but I don't like it being inconsistent. 🙂

 

Thanks.

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Message 6 of 18

etfrench
Mentor
Mentor

Black is good😁 Blue is bad.  It looks like you have visibility turned on for more than one sketch.  It's a little easier to see what's happening if you only have the working sketch's visibility turned on.

 

Here are my Preferences settings:

Preferences2.JPG

 

ETFrench

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Message 7 of 18

awebber2FUZM
Participant
Participant

Thank you. I would usually only have 1 sketch visible at a time (unless I really needed something from another sketch as a reference, for example if I could figure out how to move the SVG logo on Sketch3 to the right, showing the stuff on TopFace would make it easier to judge when it's centered; there's undoubtedly a better way to do it). In this case I had both visible to try and show everything going on with the body.

 

There are several things that still seem strange:

1. Why the purple line doesn't make a complete ellipse since it seems to show the extent of the flat surface before the fillet (irrespective of whether it is useful to see that)

2. Why that one rectangle in the SVG is black (or green) when all the other lines in the SVG are blue (or green if locked).

 

Also, I still want to move the SVG down (let's say -1.00 mm on the Y axis). I can't figure out how to do it, and even if I just select the puck, if I then say Move/Copy and either enter -1mm in the Y distance, or drag it, it instead spins around. Same if I change the X distance (which I ultimately also need to do, to centre it). Can't get the video to upload so I'll include a link: https://www.screencast.com/t/7ZtKYRvT5A3

 

Thanks for your patience with what are surely basic questions.

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Message 8 of 18

etfrench
Mentor
Mentor

If you share your Fusion 360 file, it will make it much easier to debug and explain.  File/Export/Archive file *.f3d and attach the output to the thread.

ETFrench

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Message 9 of 18

awebber2FUZM
Participant
Participant

Thanks, I'll do that. Alex is my nephew and the logo is something he drew for himself. This is a toothpaste squeezer, I downloaded one from Thingi but wanted to make my own. I was searching for some image I could slap on it and found the logo (it was an EPS which I converted to SVG and cleaned up). The text on the bottom is kind of an inside joke, again something to learn with. 

 

I assume this was done inefficiently (and yes I know the logo is extruded twice, first embossed then engraved/incised/debossed [can't believe that's a word], but I didn't want to mess with it as long as it was working).

 

Thanks again.

 

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Message 10 of 18

etfrench
Mentor
Mentor
Accepted solution

I can't tell you why the geometry is locked.  @jeff_strater  I suspect a bug in the .svg import routine😥

You can either redraw the sketch from scratch using control point splines (Only half of it needs to be drawn, then use the mirror command), or you can project the geometry to a new sketch with Projection Link toggled off.  This will allow you to move the geometry.

 

You can simplify the 3d model part by drawing it with two slots, one for the outside perimeter and one for the actual slot. 

ETFrench

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Message 11 of 18

awebber2FUZM
Participant
Participant

Thanks, it's good to know I'm not crazy. At least not in this example. 🙂

 

Control point splines and projection link are both concepts I haven't used yet (I feel like I use Fusion 360 the way those Word users do, who put in lots of extra returns to control page breaks, line breaks, etc., and then when there's an edit everything's wrong; in Word and in layout software I'm all about keep-withs and no-breaks and letting the software do its part, because that's my skill, but in F360 I'm doing "move this then adjust this, and hope nothings changes". 😞 )

 

I was surprised that friends and family didn't know about toothpaste squeezers, I have several (from the dollar store, souvenir shops, etc.) so making a vaguely personal one seems like fun. The logo's off-centre because I kept widening the slot to accommodate my Costco-size tube. I'm thinking I could also just remove that sketch, put the SVG on again, and position it correctly? If I did that, could I then copy the model and put text or a logo on for another friend? (IOW does the software work that way, or there something analogous to an 80s mail-merge where I could even parameterize the linked SVG?).

 

Sorry if that's too vague, i'm sure I could do it with a brute-force copy-the-file-and-edit.

 

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Message 12 of 18

etfrench
Mentor
Mentor

Attached is a file showing how to use the slot command to create the geometry.  The geometry in Sketch1 was projected from your svg Sketch3.

 

I would create a new file for each logo, then insert the base model into it.  In the attached file, I put the origin at the center point of the outer slot arc.  If it was at the center point between the outer slot arcs, then all you would need to do is have a centerpoint on the logos in order to align them.  Even better would be to extrude the logo in its own component, then use a joint to position it on the main body.  Once positioned, you can Combine/Cut to create the final model.

ETFrench

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Message 13 of 18

g-andresen
Consultant
Consultant

Hi,

I recommend you to create a new sketch, insert the desired parts from sketch there, project an element from sketch 1 and position it by point to point connection.

 

Screencast

 

günther

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Message 14 of 18

awebber2FUZM
Participant
Participant

Thank you both, I will study those solutions when I can.

 

In terms of the file I uploaded, I expected that when I selected the puck (or any other single object) that I could move it around either by dragging or by specifying a distance. But instead, if I select the puck (easiest to grab both parts representing the top and the face of it), when I either drag down or specify a Y distance, it just rotates. 

 

Is rotating also happening to you if you try it? And is it what you'd expect given the model as it is? I'm trying to calibrate my brain to whether I'm expecting the wrong thing, or if my expectation of dragging around is correct, whether it's misbehaving because of the way I built it or some other reason. Really I wanted to move everything down and to the right (-Y and +X) but the black vs blue part throws me, so I'm using the puck as a smaller test.

 

Thanks.

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Message 15 of 18

jeff_strater
Community Manager
Community Manager

I can't say how it got into this state, but what I see is that there is one fixed point in that part of the sketch that is inhibiting movement.  If you un-fix that point, it works fine.

 

I think SVG geometry is fixed when it is imported.  Somehow, that point never got un-fixed, is my best guess...

 


Jeff Strater
Engineering Director
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Message 16 of 18

awebber2FUZM
Participant
Participant

Thank you. I'm not sure what I'm doing differently now, but I selected the puck (both parts) and did the unlock, and now it works as expected. In your sample, was there a way to have the point that was locked identified, or did you just know what it was based on where the rotation was centered (the point that wasn't moving)? I was able to get the black square unfixed too, again I don't know what I'm doing differently but I'm happy I feel like I'm moving forward.

 

Thanks again for the guidance.

 

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Message 17 of 18

cleanserlubricant
Community Visitor
Community Visitor

Thanks for this, so simple yet pulling hair out. xd

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Message 18 of 18

cleanserlubricant
Community Visitor
Community Visitor

thanks for the question.

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