How do I repair / patch this model?

How do I repair / patch this model?

kadcnc1
Enthusiast Enthusiast
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Message 1 of 8

How do I repair / patch this model?

kadcnc1
Enthusiast
Enthusiast

Hello,

 

Just got this .stp file that im working on. can't seem to figure out how to repair this model to get a smooth curve, as opposed to the multiple segmented curve in the image below.

 

repair geometry.png

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Message 2 of 8

George-Roberts
Collaborator
Collaborator
That was from a STP file? You sure it wasn't an STL?

I would say there are two pretty easy option.. The first one would be to let the smoothing in the CAM toolpaths smooth it out for you. second option would be to just create a sketch, project some edges and just re-model the curve then create an extrusion. Could you share the STP or F3D and I could put some short examples together
Message 3 of 8

RandyKopf
Collaborator
Collaborator

Marco: The imported file you show does have some segmentation. That is rather than having smooth curves as one might expect. But just as @George-Roberts suggests the CAM routines in Fusion 360 will machine it and you will not see the faceting on the final machined part as what appears on the imported model. Just follow George-Roberts advice. He is extremely respected here as a knowledgeable expert in Fusion 360 with an emphasis on CAM/CNC machining. 🙂

Randy Kopf 

http://desktopartisan.blogspot.com/


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Message 4 of 8

xander.luciano
Alumni
Alumni
STL's are triangles and can't have edges selected, a STP is a CAD file.

I agree with your solutions though. Easiest would be to just chain it in CAM and utilize smoothing (btw, I've seen the best results from between a 1:1 and 2:1 ratio of tolerance:smoothing. e.g. .001 tolerance, .001 smoothing. or .0015 tolerance .00075 smoothing.)

Also would recommend simulating with show points to verify it's loose enough to actually smooth the profile.

Worst case remodel, but that's that's too much effort haha.

Best,
Xander Luciano

Xander Luciano
CAM Content Developer

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Quick Tips: When to resselect CAM geometry | Understanding Smoothing in CAM | Adaptive Facing | Online GCode Viewer
Message 5 of 8

George-Roberts
Collaborator
Collaborator

Yeah I get the difference between both. Sometimes a converted STL can look like this though (at least with the convert base feature in Inventor). Thought it would be worth double checking 🙂

Thanks @RandyKopf 😄

Message 6 of 8

JDMather
Consultant
Consultant

Attach your original STEP file here and I will fix it for you.


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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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Message 7 of 8

RandyKopf
Collaborator
Collaborator

@JDMather

As they say... Give the man a fish feed him for a day... Teach the man to fish he will feed himself for a lifetime?

Since he did ask "How do I..."

Maybe just explain the process you would use to him?

🙂

Randy Kopf 

http://desktopartisan.blogspot.com/


If my post is helpful, press the LIKE Button If it resolves your issue, press Accept as Solution! Have a great day!
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Message 8 of 8

kadcnc1
Enthusiast
Enthusiast
Thanks for the reply, It is a .stp file. unfortunately, I am unable to
share the preparatory file online. I just ended up using the CAM tool
options, and it had no issues selecting the curve as a full radius. I
didn't have to do anything extra, I just was curious, and started to CAM
it. It had no issues.

--
Marco Pelayo
KaD Models and Prototype
maco@kadmodels.com
(408) 724-0051
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