Export DXF problem

Export DXF problem

Markclayto
Advocate Advocate
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52 Replies
Message 1 of 53

Export DXF problem

Markclayto
Advocate
Advocate

When exporting a fusion drawing as DXF if i send that drawing to be laser cut they cannot use the file.

 

If they open it in draft sight only half of the drawing is visible if they open it in Autocad it it has problems too.

 

The only way i have found to correct the problem is get a trial version of Autocad and use the export layout command to make the drawing readable.

 

Then it can be opened in other programs a lot of people we use for laser cutting use draft sight because of the free version.

 

Is there any chance this can be fixed soon as i cannot have another trial of Autocad and would prefer to use one program.

 

 

Kind Regards Mark

 

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Accepted solutions (1)
18,296 Views
52 Replies
Replies (52)
Message 21 of 53

dschultz
Explorer
Explorer

Autodesk viewer will not open .dxf saved from Fusion!  

 

What am I missing?

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Message 22 of 53

airRPT2H
Contributor
Contributor
Hi,

I am sorry that I cannot be of much help here as we tend to use Fusion Team to view project files (within our own groups). However, I have a vague memory of using A360 viewer in the past with some success.

Regards,

Tony
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Message 23 of 53

Anonymous
Not applicable

Hi,

The problem seems not resolved :

My supplier who cut with laser my metal parts can't read the dxf, or dwg files with the software Lamtek even if I try to export in older version with DWG TrueViewer. I tried to export in dwg 2000, 2004, 2007, and 2013. And nothing works.

His result is in the following picture :

Capture.JPG

The strange thing is that it works with draft sight...

 

This problem is new because it works before...

Maybe there was a recent update which is not good?

 

It is very important to solve this issu please.

 

Thanks

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Message 24 of 53

g-andresen
Consultant
Consultant

Hi,

Your screenshot shows the image of a drawing. >  Output from the drawing environment 
I think your supplier doesn't need templates or other features of a drawing but only the geometry in real size.
This is created in the design mode.
Either this is done in the sketch as DXF or via "File" > "Export" > DWG as 2D / 3D geometry.

 

günther

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Message 25 of 53

Anonymous
Not applicable

ok , I am trying to export as you said but it is very long (maybe 5minutes for 1 file)...

It is not a good solution in long terms.

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Message 26 of 53

masterprompt
Explorer
Explorer

This still isn't working.  When trying to export something with splines it is not accruate and there are lines all over the place..  Truly frustrating...

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Message 27 of 53

etfrench
Mentor
Mentor

You'll need to talk to the people who designed the program reading the file.  Quite a few programs are not using the latest dxf definitions.

There is an app in the store to convert splines to short line segments.

ETFrench

EESignature

Message 28 of 53

masterprompt
Explorer
Explorer
you mean like https://viewer.autodesk.com/ ? Isn't autodesk the ones who
created fusion?!? Everywhere I load the DXF it looks broken... And if
EVERYONE can't read it then I would say that fusion is the outlier...
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Message 29 of 53

masterprompt
Explorer
Explorer

Also, I tried the export app.  It fixes the splines issue, but there are other issues with lines not showing up where they should be.  So it isn't just with splines.  

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Message 30 of 53

airRPT2H
Contributor
Contributor

I have never found that exporting to a DXF does not work well.  We use the simple right click on the sketch (see pic) and save as a DXF file as this seems to process locally rather than sending the file out to the Autodesk servers for conversion. 

 

Having said the above the issue seems to be squarely with the software you try to read the DXF files with.  We often need to read the resultant DXF files into Adobe illustrator first and the export again to DXF for our legacy system to read it correctly.

 

We have found that Fusion 360 seems to output all the detail in the DXF required but unless you use a third party conversion (like illustrator) some legacy software we have just won't read it!

 

I hope that helps...

 

airRPT2H_0-1674042166225.png

 

 

 

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Message 31 of 53

airRPT2H
Contributor
Contributor

Sorry - meant to read "I have found does not work well"!

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Message 32 of 53

TheCADWhisperer
Consultant
Consultant

@masterprompt wrote:

This still isn't working. 


@masterprompt 

No example files Attached?

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Message 33 of 53

masterprompt
Explorer
Explorer

So this part is something I'm going to take to our CNC router table.  The viewer I'm using is https://viewer.autodesk.com/ and as you can see, it adds some line through the center area and removed the line to the far right.  The sketch was created using a projection off the part.  Everything looks just fine in fusion but exports to DXF terribly.   and it's not just THEIR OWN VIEWER that isn't reading it correctly, it's every viewer I've tried.  And this was using the 3rd party plugin (splines to polylines) because the default export looks EVEN WORSE in their own viewer...  I'm so tired of having to buy more software just to get fusion to work as it's documentation suggests it should...  
Screenshot 2023-01-18 at 7.25.58 AM.pngScreenshot 2023-01-18 at 7.28.53 AM.pngScreenshot 2023-01-18 at 7.29.15 AM.png

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Message 34 of 53

masterprompt
Explorer
Explorer

here's the DXF

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Message 35 of 53

airRPT2H
Contributor
Contributor

Edited with 2D Design to remove diagonal line in middle of your design and then exported back to DXF using 2013 version of DXF file.

 

I had an issue today myself with something similar and oddly it created a series of triangles rather than the shape I was trying to export.  Autodesk would help us all in providing legacy support and the ability with Fusion 360 to export to older versions of DXF (like with Inventor!).  This issue has been going on for far too long.

 

I hope the attached helps.

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Message 36 of 53

masterprompt
Explorer
Explorer

Although I appreciate your effort on this, I can't come to you and ask you to do this through every iteration of the design process...  I think I'm just going to bite the bullet and drop fusion from my toolset.  It's obvious autodesk's right hand doesnt talk to it's left hand and THAT has been an issue since the 90's with 3d studio even..  I'll just find a different pipeline to avoid autodesk

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Message 37 of 53

laughingcreek
Mentor
Mentor

@masterprompt - from the very beginning of autocad (or at least from version 2.6 when I started using it) dxf file export has had struggles when attempting to  export geometry that has any weirdness about it.  every product since , autodesk or not, has the same problems.

 

lines laid over each other, intentional or not,  can sometimes be one of those sources.  (as can splines with bunched up control points and other factors.  that means starting with clean geometry will give you the best chance of export success.

 

your sketch has curves doubled up on each other (every curve in this sketch does)-

laughingcreek_0-1674062966335.png

in this particular case it would appear to at least partially be caused because you still have this setting turned on- 

laughingcreek_1-1674063050801.png

which I would highly suggest you go turn that off now. (whoever at AD who still thinks it's a good idea to have this setting turned on by DEFAULT really needs to have a stern talking to).

 

moving on, I couldn't really do anything with that sketch to get it to export properly.  But, if I started a new sketch on an origin plane and projected the BODY (not the face) into the sketch it would export properly.

 

for some reason there is still some issue with export when projecting the face into a sketch.  not sure why, perhaps a bug.

 

anyway, developing better sketch hygiene practices will greatly decrease the various difficulties, such as this and many others, you might be experiencing.

for example I randomly opened the "wall frame" sketch and checked this line-

laughingcreek_2-1674063441099.png

and as you can see, there are 4 different sketch elements stacked on top of each other.  it CAN be ok to lay sketch elements over each other.  but needs to be methodical and intentional.  other wise you'll end up with a mess  that doesn't seem to want to behave at times.

 

  

Message 38 of 53

masterprompt
Explorer
Explorer

That is some great advice, I appreciate that!

As for the weird line you see, it's intentional; this is for a teardrop camper and I needed the galley hatch support to be perpendicular to where the roof attaches into the frame.  

Sadly, I only took one course on CAD drafting back in the 90's so this is all from watching hundreds of tutorials (with each tutorial being on a different version of fusion where something is always slightly different, missing, or new).  It's my understanding that in order to get complex shapes, one must find planes to create sketches on, in order to extrude those shapes, and join/cut/etc with previously extruded shapes.  Just to get the teardrop spline was a major pain in fusion, and then in order to work with that spline with the rest of the more straight geometry, I had to extrude the shell, and then do sketches over the top of that...  There never seems to be one tried and true way cause once you learn something new, but you're hundreds of steps into the drawing, you need to rollback to a point and start over again (At some point on the timeline) just to get that new technique to work well with the upcoming steps...

 

I appreciate your advice, I will take it to heart!  I still loathe using fusion 360...  But autodesk has us by the <insert spherical stl here>

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Message 39 of 53

etfrench
Mentor
Mentor

Why are you creating a dxf for a cnc router?  Doesn't it use gcode?

ETFrench

EESignature

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Message 40 of 53

masterprompt
Explorer
Explorer

It does.  They use VCarve Pro to generate their gcode.  I don't have much experience (actually none) using CNC routers.  I have a few 3d printers (usually my fusion stuff goes right into cura or prusa slicers), and I've used machining centers when I was in my 20's (20-some years ago). 

It's their (friend) machine (router table), and I'm just trying to get a DXF file so they can import it into VCarve Pro.  I'm curious if there are better pipelines but I'm very new to cnc routing 😞 

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