Joining Two Boxes Together

Rhino
1

Hello I am new to rhino so please take it easy on me :slight_smile: More or less I am looking for you to tell me the tools that I need to research so I can complete this task but any help is greatly appreciated

I have two boxes that I need to be one continuous box but cannot because there is a wall separating them. If I select the wall and hit delete it will have a big hole because 1 box is wider then the other.
box flange question showing wall

box flange question
box flange question1221Ă—615 76 KB

boxflange smaller.3dm (70.1 KB)

I also have the flange to deal with but if I can get the walls knocked down so it is one continous box I will be happy.

Thanks for any help or nudge in the right direction you can give.

2

Try boolean split
Use the longer one as the cutter to the shorter one.

3

BooleanUnion might work.

A general approach is to use Split, Trim and Delete commands as needed. You made need to first Explode the shapes, modify the components, and then Join.

If you want to learn to use Rhino a good place to start is to go through the User’s Guide, and the the Level 1 and Level 2 Manuals. https://www.rhino3d.com/tutorials/

4

Hi @christopher.ho, @davidcockey,

Hey guys, if you check out the model you will see that although @flashc5 described the elements as boxes they are actually open (they don’t have tops) rather than solids, so boolean isn’t going to work.

@flashc5, there are several ways to do this and the training material David refers to will answer your question (and the subsequent questions: how do I complete the flange, how do I make this a solid object with thickness, what would have been a better way to draw this?).

Here are two methods that will work for you in this specific scenario:

image
image1034Ă—743 231 KB

Regards
Jeremy

p.s. you have an extra surface duplicating one face of your square element: it is good practice to keep your drawing clean by removing things like this (for example, it makes selections more difficult):

image
image1034Ă—743 180 KB

1 Like
5

i would suggest the following workflow:
draw to rectangles and make sure point snapping is set proper (endpoint…)
_rectangle
combine the rectangles with
_curveBoolean
improve the resulting curve with
_simplifyCrv
make it 3d
_extrudeCrv (option Solid = Yes)
give it a wall thickness
_shell
optional delete the unwanted surfaces … not sure what precisely is the result you need
(sub-Selection Command + shift + Klick —> delete)

Untitled
Untitled1054Ă—948 18.8 KB

Untitled2
Untitled21054Ă—948 34.6 KB

Untitled3
Untitled31054Ă—948 47.3 KB

best -tom

1 Like
6

Good catch that the objects are open. I thought they had thickness but it does appear that they do not. BooleanUnion sometimes works with open surfaces and this may be an instance when it does, particularly if the two objects are the same height…

7

I opened the model and used Boolean split to remove the joined surface then I posted my answer.

8

Hi @christopher.ho,

I don’t see that here. What have you done differently to me?

Regards
Jeremy

9

Don’t remember now, may have used split

10

p.s. you have an extra surface duplicating one face of your square element: it is good practice to keep your drawing clean by removing things like this (for example, it makes selections more difficult):

Thank you for the tip. I definitely have a lot to learn (just started a few days ago). Maybe how to do this will become intuitive with time.

11

i would suggest the following workflow:
draw to rectangles and make sure point snapping is set proper (endpoint…)
_rectangle
combine the rectangles with
_curveBoolean
improve the resulting curve with
_simplifyCrv
make it 3d
_extrudeCrv (option Solid = Yes)
give it a wall thickness
_shell
optional delete the unwanted surfaces … not sure what precisely is the result you need
(sub-Selection Command + shift + Klick —> delete)

I really appreciate this. While it is quite over my head I will go and research each of the steps you listed to learn what they do. Thank you again for helping me

12

Thanks I did not know how to do this previously
I can see from above that the _shell command gives it a thickness