DRAFTING QUESTION

[Mxious]

Is it possible to create a dimension in an assembly from a reference plan in a part ? For example: I want to create a dimension from a part to the web center of a beam, but I can't select any center line. Can I select the plan ???And how ?

thank !

 

[solid7]

A dimension, or an OFFSET CONSTRAINT?

If you want to create constraints, it's best to work with planes for the type of geometry that you are describing. ("web" centerlines)

These have to be defined in the detail part. Nothing amiss once you've done that. I suggest that you create a plane, using the "planes between" function. You can create a plane with history on either side of your web, and then, using "planes between," you can put a symmetrical center plane between them, that will update if you change the thickness. It can then be referenced by the assembly constraints.

Remember to watch the tree when using the Assembly workbench. (make sure you are trying to create constraints with the main product - top object in tree - highlighted)

Hope that helps.




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[Mxious]

I'm not in an assembly. I'm in a draft. I have some beam and I want to put the dimension between each beam from center to center on each beam. I need to start my dimension from the center of the web of the first beam to the center of the web of the second beam

thank !

 

[itsmyjob]

I have done something like that few months ago.

what i did was :

in the 3d i made all center points at the end of each beam.

project those point in drawing and create my dim.

Eric N.
indocti discant et ament meminisse periti ​

 

[solid7]

It used to be that you could use the "center line" function between two lines, and it would give you the center. (generally used for creating centerlines of circles, but worked on lines, also)

I have noticed in later versions, (primarily R15) that this function has either become buggy, or it doesn't work like that anymore.

Give it a try, though. That's how I used to dimension centerlines for parallel edges. If not, use the "bisecting line" function, and then dress it up to look like a centerline.

Wish I could make it easier...




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