Specify dimension origin point on 3d solid corners in AC 2004
Specify dimension origin point on 3d solid corners in AC 2004
(OP)
Could anyone tell me how to keep the extension lines and arrows on the exact corners of 3d solids? e.g. I'll draw a 3d box and dimension it and the dimensions in front view will look fine but when I go to orbit they're way off. I've been checking "Mastering AutoCad 2004" and can't find it. I've searched the internet and couldn't find anything either. Can anyone help?





RE: Specify dimension origin point on 3d solid corners in AC 2004
Dims are always in the Z=0 plane. Be sure to set your UCS to match the plane of the object you want to dimension and set the origin so that your entities are at Z=0.
RE: Specify dimension origin point on 3d solid corners in AC 2004
RE: Specify dimension origin point on 3d solid corners in AC 2004
First, rotate your view (using "_3dorbit") so that you can see the face that you want to use as your dimensioning plane. Rotate it so that you can distinguish between points with same X & Y but different Z coordinates.
Type
"_ucs"
"_3"
Follow the prompts to define your origin and axes. Subsequent dims will be in the new X-Y plane; ordinate dims will be based off of the new origin.
RE: Specify dimension origin point on 3d solid corners in AC 2004
Flores
RE: Specify dimension origin point on 3d solid corners in AC 2004
after I pick face it asks Enter an option (next/xflip/ yflip) <accept>.
What do these mean. I just want all my dimensions to touch or get as close as possible to the object I'm dimensioning.
RE: Specify dimension origin point on 3d solid corners in AC 2004
A good way to think about the UCS being on a face is imagining laying a piece of paper on that face. The UCS is flat, the paper way is a good way to imagine it when you are placing. Hope this helps
RE: Specify dimension origin point on 3d solid corners in AC 2004
xflip - rotate the ucs 180 degrees around x-axis
yflip - rotate the ucs 180 degrees around y-axis
What you're looking for is to have your XY plane to contain the two points between which you're dimensioning.
RE: Specify dimension origin point on 3d solid corners in AC 2004
Mark