dimensioning solids (e.g. spheres) in ACAD 2004

[Mark84106]

I'm designing a new invention in ACAD 2004 and I'm trying to add a dimension on a sphere. How do I do that?
Thank you in advance.
Mark

 

[AlexDring]

what kind of dimension you trying to apply?

 

[Mark84106]

I'm trying to make a radius dimension of a sphere

 

[AlexDring]

I am assuming you need the dimension on the model side of it and not doing a 2D layout?

 

[AlexDring]

I dont know if its possible actually. Autocad cant see any goemetry that you want dimensionsed since a sphere has no edges. If you were to do one in 2D, differnt all together and simple. 3D I dont know, unless you had MDT, which I am sure you can show such a dimenions since the program is supposed to be parametric.

Hope this helps.

 

[smcadman]

I am assuming you are dimensioning it in a layout. Make your vport with the sphere current. Enter "solprof" at the command line, and choose your sphere. For the 3 prompts, enter yes, no, then yes (enter, n, enter). Turn the layer with the sphere off, and leave the layer with the solprof'ed circle on.
While still in that vport, choose "change space/model space" (chspace) from the Express Tools. Pick the circle just created, and hit enter.
Instead of the steps just mentioned, you could draw a circle on your layout. Since you can't use your osnaps to find the radius (quadrant, or perpendicular), you will have to enter the scale of the circle at the command line.
Either one will work for you, but with the first you get to practice on a command that is sometimes overlooked.

Flores

 

[shabba]

Use section command to create an outline of the part, then dimension the radius of this line and delete it (if you want) Bit of a cheat but a simple way to do it. Why do you want a dimension in model space anyway? Wait 'till you create your views and dimension it properly (as per smcadman's post)