Reverse Modeling/Analysis
Reverse Modeling/Analysis
(OP)
Hello,
I am trying to take 3D bone scans (STL files) from cadavers and analyze the movement of joints. How can I make it so there are actual points on the surfaces so that I can attach springs and such to them? I am having trouble doing anything with them other than moving them around. Thank you
I am trying to take 3D bone scans (STL files) from cadavers and analyze the movement of joints. How can I make it so there are actual points on the surfaces so that I can attach springs and such to them? I am having trouble doing anything with them other than moving them around. Thank you





RE: Reverse Modeling/Analysis
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
But let me ask, are the NX models that you're working with, are they faceted or not? If they're faceted then you should be able to select the models in the above mentioned functions. And I'm sorry, the name of the function 'Fit Surface'.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Reverse Modeling/Analysis
I tried the "fit surface" and it gives me a very weird, 2D shape that I do not think is what I am looking for. I am unsure if the objects are faceted. I would assume not, because none of the functions worked. I have been working with this program for about 5 months and have never used a CAD program before, so I am very inexperienced when it comes to operating anything more than basic functions. I would upload the part that I am working with so you could take a look at it, but it is a specimen from a human and I don't know if I have the authority to release it. Also, the professor did not show up for my meeting. I did not get any information from him. I appreciate your help though.
RE: Reverse Modeling/Analysis
Another way to check is to use menu -> information -> object..., set your selection filter to "facet body" and see if it lets you select the body. If it does, you have a faceted body; if not, you have something else.
www.nxjournaling.com
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
To answer your original question, you can create points on the surface if the "point on face" snap is turned on. You'll have to "eyeball" the location, but at least the resulting point will be on the surface.
www.nxjournaling.com
RE: Reverse Modeling/Analysis
When you say "CMU/MTU", are we talking about "Central Michigan University/Michigan Technological University"? If so, which campus are you located at?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Reverse Modeling/Analysis
RE: Reverse Modeling/Analysis
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.