Autocad 2013 Boolean Problem

[ohyata]

Hi,

I am a beginner here,
I have two solid models in one workplace.
I am trying to subtract one from another, But one is hidden from another.
To subtract smaller one from bigger one, I need to select small hidden one.

1. Anybody know how to select the hidden part?

If I have tree view(navigation??), I could simply select one on the tree, But I don't know how to make to pop it up.
Instead of clicking icons, I tried to use command, but I have no idea what each model name is.
(I tried imported file name, but didn't work)
2. would you let me know how to check the model name so that I can use in command?
3. When I use command, I put SUBTRACT - enter , (select object- actually I click on the object)
then it shows me "select objects:1 found" but when I hit ENTER, it shows me "no solid, surfaces, or regions selected"
How can I properly select the object?

I currently imported two STEP files in one workplace, both are solid.
I am working on 3D modeling-solid editing-subtract.

Thank you!

 

[IFRs]

type subtract on the command line, follow the prompts, to select the hidden one use a non-crossing window, the objects must be Autocad objects.

 

[ohyata]

Thanks,

what is non-crossing window? and what do you mean Autocad object?
I am using 2 of STEP(*.stp) files now-
you mean that the reason that I can't select the object is objects are not in autocad object??

Thank you in advance

 

[cfee]

A non-ctrossing window is one where the first pick-point is on the left and the second is on the right. Another non-crossing window can be forced by typing W at the select prompt of your subtract command (ACAD will accept the W input) and then ACAD will allow you to pick 2 points in either direction, and give you a non-crossing window.

There are 2 types of select windows - "Crossing" where anything the window surrounds and even touches will get selected, and an "Non-Crossing" where ONLY objects INSIDE the window get selected, even if the window happens to touch something else. That something else will be ignored, since it wasn't completely surrounded by the "Non-Crossing" window. "Crossing Windows" can be forced by selecting the 2 window points right-to-left, where "Non-Crossing" windows happen when you pick your window points left-to-right.

Another approach might be to input (type-in) the absolute coordinates of the insertion point of the part, as Autocad will think that was a cursor (cross-hairs) pick and get whatever is at that spot. HOWEVER if there is no actual geometry there, (if its only a point associated with a block you brought in - the base point but not ON geometry) ACAD will miss the pick. That's why I TRY to make my insertion points ON object geometry, but of course that's not always possible ...

Good luck and let us know how it goes !

C.