HELP! How to split this body?

HELP! How to split this body?

matt.culik
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Message 1 of 16

HELP! How to split this body?

matt.culik
Contributor
Contributor

I am trying to design a project box, which will be 3D-printed, that is contoured on one side to fit the instrument panel of my tractor. 

 

I 3D-scanned the tractor instrument panel with my iPhone and Scandy Pro. I then edited the mesh using Meshmixer. As my last step in Meshmixer, I extruded the face 0.1mm to create a solid body mesh.

 

I then imported the solid body mesh into Fusion 360 and converted it to a Fusion 360 body. I also created a primitive for the project box. 

 

What I'd like to do is split the primitive into two bodies using the instrument panel body. However, when I do this using Split Body (selecting the primitive as the target and the instrument panel as the tool), I get the following results:

 

Body 1 = Instrument panel

Body 2 = Intersection of instrument panel and primitive

Body 3 = Primitive, with the instrument panel cut out of the middle

 

If I flip/flop the target/tool, I get a variation on the above.

 

I can extrude the unneeded half of the primitive to a point, but because the lines of the instrument panel are converging, that only gets me so far.

 

So...how can I split the primitive into two separate bodies using the instrument panel?

 

Thanks!

 

Screen Shot 2021-09-26 at 12.52.11 PM.png

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Accepted solutions (1)
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15 Replies
Replies (15)
Message 2 of 16

mango.freund
Advisor
Advisor
share the f3d file with us.
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Message 3 of 16

matt.culik
Contributor
Contributor

@mango.freund - Thanks! Here's a link:

 

https://a360.co/3kMqw0g

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Message 4 of 16

TheCADWhisperer
Consultant
Consultant

@matt.culik wrote:

As my last step in Meshmixer, I extruded the face 0.1mm to create a solid body mesh.


This step was not needed - and in fact complicates the work.

 

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

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Message 5 of 16

matt.culik
Contributor
Contributor

@TheCADWhisperer- Thanks! File is attached.

 

I kind of figured the extrude was hacky, but was the only way I could figure out to get F360 to convert it to a solid body...although, per this post, that clearly didn't help.

 

Would love to know more about how to just use the face from MM. 

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Message 6 of 16

TheCADWhisperer
Consultant
Consultant

It could be tomorrow till I get back to a Fusion machine.

Hopefully you are not in a hurry, or someone else jumps in here.

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Message 7 of 16

mango.freund
Advisor
Advisor
  • Unbenannt.PNG
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Message 8 of 16

matt.culik
Contributor
Contributor

@TheCADWhisperer - Not in a hurry. Thanks!

 

@mango.freund - Thanks, but I may not have been clear in my explanation. I'm trying to create a shape that will rest on the contours of the mesh, not cut a hole in the mesh. 

To say it differently, the mesh should remain unmodified, and the shape that's in your file as Körper2 should be cut in "half" by the mesh.

 

Appreciate all the help so far!

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Message 9 of 16

TheCADWhisperer
Consultant
Consultant

@matt.culik wrote:

I kind of figured the extrude was hacky, but was the only way I could figure out to get F360 to convert it to a solid body...


Do you have the surface before you messed with it in MeshMixer?

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Message 10 of 16

matt.culik
Contributor
Contributor

@TheCADWhisperer - Sort of. I have the Scandy Pro scan which has a HUGE number of triangles. I can send that, or I can do the cleanup minus the extrude.

 

By cleanup, I mean plane cuts to remove extraneous stuff, removal of noise, and adaptive reduction of triangles for a smoother surface and better computer performance. 

 

Let me know which you'd prefer. Will provide tonight. Thanks!

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Message 11 of 16

TheCADWhisperer
Consultant
Consultant

It would be best trimmed - just don't thicken/solidify.

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Message 12 of 16

mango.freund
Advisor
Advisor

Hello, @matt.culik unfortunately you thickened the network so that a lot of edge surfaces were created. the work is almost finished except for cleaning the form rims and then stapling.  go in the time before the stapling and clean - the edges on both sides.                    greetings  mango

 

Unbenant.PNGUnbenannt.PNG

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Message 13 of 16

matt.culik
Contributor
Contributor

@TheCADWhisperer - The cleaned up scan, NOT extruded, is attached. All I did was plane cuts to remove unneeded mesh and adaptive reduce to reduce it from 426K facets to 3.9K. 

 

If you could enlighten me on the workflow to get to a split body, that would be awesome.

 

Thanks!

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Message 14 of 16

matt.culik
Contributor
Contributor

@mango.freund - Thanks! I'll have to review how you achieved that. In the meantime, I've attached the not thickened mesh above. 

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Message 15 of 16

mango.freund
Advisor
Advisor
Accepted solution

Hello, set the correct position and size in the sketch. greetings mango

 

Unbenannt.PNG

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Message 16 of 16

matt.culik
Contributor
Contributor

@mango.freund  - THANK YOU! This is perfect and I was able to use the timeline to see how you did it. Apologies for the delayed response. Was a hectic week at work.

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