3d scanning to shapeways files

[wcfn100]

Not true. CAD files are not referred to as "solid" models for nothing. Section any CAD model, and you'll see that it's solid through & through.

They are called solids because that are 'water tight'  i.g. no holes in the surface. 


Jason

[peteski]

edit:  I just wanted to add that anything I say is absolutely open to correction or updating.  I started in 3D modeling before there were even smooth curves (vector based), everything was point/line based mesh.  Shortly after I started, NURBS became a thing (look it up if you want  ).  If they've overcome any of the limitations scanning has by way of hardware of software, I'd certainly be interested in hearing about it.

Jason

Have you ever worked with CADDS on a Computervision CAD/CAM system?

[wcfn100]

Have you ever worked with CADDS on a Computervision CAD/CAM system?

No, my background is more animation based,  3D Max, Maya, Softimage, and Rhino.


Jason

[draskouasshat]

Enough about teeth........
So what's the price of solidworks and which one should i get?

Drasko

[GimpLizard]

They are called solids because that are 'water tight'  i.g. no holes in the surface. 

Jason

Yes, a proper solid model is water tight. But it is not hollow. A hollow body is called a "surface" model. And those also, when done correctly, are water tight. Below are a couple images of a rubber molded part (modeled in KeyCreator CAD) with a 3/8-16 bolt imbedded in it. the first in a view of the entire part. The second is a sectional view through the center. As you can see, neither the bolt or the rubber "head" is hollow.

[GimpLizard]

Just for comparison, here is a view of the rubber head, converted to a surface model, and sectioned. Clearly it is hollow.

[Jamesn320]

Not true. CAD files are not referred to as "solid" models for nothing. Section any CAD model, and you'll see that it's solid through & through. The only exception would be a shape that has been "shelled". But even then, the walls are "solid".

 GimpLizard, when I said  'Cad models normally are hollowed out' I was referring to models prepared for 3D printing.  To hollow out is to create a shelled model.

[wcfn100]

Yes, a proper solid model is water tight. But it is not hollow. A hollow body is called a "surface" model. And those also, when done correctly, are water tight. Below are a couple images of a rubber molded part (modeled in KeyCreator CAD) with a 3/8-16 bolt imbedded in it. the first in a view of the entire part. The second is a sectional view through the center. As you can see, neither the bolt or the rubber "head" is hollow.

That's how the program represents a solid, but that's not why they are called 'solids'.


Jason

[wcfn100]

Enough about teeth........
So what's the price of solidworks and which one should i get?

Drasko

If you haven't tried Sketch up yet, you should.  Even though it won't have some of the cool tools of bigger programs, much of the modeling will be based on the same types of operations.  I would think a steam boiler could be done in Sketchup without too much issue once you learn the right workflow.

Jason

 

[Lemosteam]

If you haven't tried Sketch up yet, you should.  Even though it won't have some of the cool tools of bigger programs, much of the modeling will be based on the same types of operations.  I would think a steam boiler could be done in Sketchup without too much issue once you learn the right workflow.

Jason

Myabe Sketchup has improved since I tried it, but at the time solid filleting was pitiful and complex filleting was not there.

As for the Carb scan, the air cleaner diameter and shoulder are machined- that scan has a radius so there is some form of fudge factor going on.

[GimpLizard]

GimpLizard, when I said  'Cad models normally are hollowed out' I was referring to models prepared for 3D printing.  To hollow out is to create a shelled model.

Ah... understood.

[draskouasshat]

If you haven't tried Sketch up yet, you should.  Even though it won't have some of the cool tools of bigger programs, much of the modeling will be based on the same types of operations.  I would think a steam boiler could be done in Sketchup without too much issue once you learn the right workflow.

Jason

I tried sketchup bank in the day. Ill give it a shot again but I'm thinking is like to learn on the program id probably continue on with.

Drasko

[wcfn100]

I tried sketchup bank in the day. Ill give it a shot again but I'm thinking is like to learn on the program id probably continue on with.

Drasko

I get that but think of Skecthup like Wordpad and Solidwork is Word.  You will take the concepts of Skechup to whatever program you end up with.  So if you want to just mess around for free for a while, it's not like you're wasting your time entirely.

The Maker group here in Colorado Springs promotes Blender as a free modeling tool and a way to get people on one program that they can help each other with.  There's also a lot of tutorials on-line.  The one issue I have with it is that it's a full on animation package that has a ton of stuff that you'll never use and it makes the interface really clumsy (to me).

Jason