Joining lines to form a profile

Joining lines to form a profile

Anonymous
Not applicable
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13 Replies
Message 1 of 14

Joining lines to form a profile

Anonymous
Not applicable

I imported dxf geometry for a knife I'm working on.  I want to rotate the blade around the pivot hole to see if there is any interference, the only way I saw to do that is to extrude solids first.  No problem doing that with the blade, but the handle won't let me pick anything other than the few holes that I put in directly in Fusion (i.e. not in original geometry).

 

I can't find a way to form all the lines into a single group or profile.  Been at it for a few hours, so any help is greatly appreciated!!

 

I'm in sketch mode if that makes a difference.

 

knife.jpg

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Accepted solutions (1)
6,343 Views
13 Replies
Replies (13)
Message 2 of 14

jeff_strater
Community Manager
Community Manager

Hi @Anonymous,

 

Usually, this is caused because there are "holes" in the profile.  This is my favorite technique for finding these holes, as originally described by @HughesTooling:  find-break-in-sketch-geometry.

 

Jeff

 


Jeff Strater
Engineering Director
Message 3 of 14

TheCADWhisperer
Consultant
Consultant

If you still have trouble identifying the issue - 

can you -

File>Export the *.f3d to your local drive and the Attach it here to a Reply?

Message 4 of 14

Anonymous
Not applicable

Jeff, that method is pretty slick and I get the point of it, but even my 'good' profile doesn't seem to make new profiles when I put the lines across it.

 

Here is the f3d file as requested.

 

I really appreciate the help!

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Message 5 of 14

Anonymous
Not applicable

Attached - thanks!

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Message 6 of 14

TheCADWhisperer
Consultant
Consultant

I found several issues (particularly in the finger guard area and one outside of that area).  (see attached)

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Message 7 of 14

Anonymous
Not applicable

Wow - how did you find them??!!  Using the line method described above?  I'm clearly doing something wrong.

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Message 8 of 14

TheCADWhisperer
Consultant
Consultant

Yes, I used the line method as described.

If I get a chance - I will create video using your original file.

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Message 9 of 14

Anonymous
Not applicable

Can I go with 2 more questions and then I'm done?

 

1. How do I incorporate new holes in that profile (i.e. I drew circles for holes, but the profile isn't picking up the new ... profile)?

 

2. Once that is all done is it possible, in sketch mode, to line up the pivot hole in handle w/ the blade hole and rotate it to see interference.  I used to do all this in Inkscape, so I'm struggling a bit learning a new program.  Thank you so much for the help already.

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Message 10 of 14

jeff_strater
Community Manager
Community Manager
Accepted solution

Hi @Anonymous,

 

On your two questions:

 

1. How do I incorporate new holes in that profile (i.e. I drew circles for holes, but the profile isn't picking up the new ... profile)?

 

It looks like what happened here is that you added the new circles to a different sketch - you need to edit the sketch of whatever geometry that you want to add the holes to.  Here's a screencast:

 

 

2. Once that is all done is it possible, in sketch mode, to line up the pivot hole in handle w/ the blade hole and rotate it to see interference.  I used to do all this in Inkscape, so I'm struggling a bit learning a new program.  Thank you so much for the help already.

 

You can sometimes do what you want in sketch mode, but it's usually painful.  The better way to do this is to create components for your parts.  A component can have just sketch data in it, or it can also have solid material.

 

Here is another screencast showing how to do this with your design, containing only sketch data.  But, you should really step back a bit and learn some about how to use Fusion, especially R.U.L.E #1 when dealing with assemblies of components, and it would be easier to do with realistic solid geometry than with sketches.

 

 

Jeff

 


Jeff Strater
Engineering Director
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Message 11 of 14

Anonymous
Not applicable

I closed this as successful, but should have thanked you first - so thanks!

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Message 12 of 14

Anonymous
Not applicable

so If I know where th holes are, how do I get rid of them. In AutoCAD it is so easy, you can snap to the node, and use the join feature. I am going nuts trying to close the break in a sketch line

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Message 13 of 14

davebYYPCU
Consultant
Consultant

Edit the sketch, then,

Select first end point, select coincident constraint, and select second point to connect to.

if you want the lines to stay relative, then combination of Extend or Trim.

 

Might help.....

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Message 14 of 14

janus2
Advocate
Advocate

Hello Jeff!

Are there any plans in the Fusion Team to do this automatically. There are other CAD programs that offer such a function. You specify a maximum error. All gaps below this value are then automatically closed.

Jan

 

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