Hi, I have no CAD experience and I have no idea what to do, but I was trying to create an auxetic cuboid structure and I only have the four sides and not the top and the bottom. I tried mirroring a wall to the XY plane (I think?) for the top and the bottom but it didn’t work. Any help or tips would be greatly appreciated!
use a rotate component instead of mirror, and with inputing the right plane for rotation you’ll get the top and bottoms
Hi can you please elaborate? I’m sorry I don’t have any CAD experience 
I tried copying one of the walls and moving onto the XY plane at the bottom, but it’s not properly aligned. Do you know how I could fix this?
the walls should be in pairs of two, opposing walls together. Then you can do a bounding box, grab the area of the bbox to get the center, and use this center as the rotation point to create your other 4 walls, just have to rotate each in different planes
hey man i m so sorry im so grateful for your help but i literally have noidea what to do like i used chatgpt and google gemini and everything to try and do what you said but i still dont know im so sorry i literally started learning cad like a week ago im so sorry to ask but can u please elaborate just a little more im so sorry thank you so much
It’s somewhat hard to tell what’s going on in your file, but I’m going to take a shot in the dark and guess that the the cuboid
- is being generated in the direction of the provided plane’s normal direction, so your XY plane will need to be flipped,
- and the extents / dimensions you’re providing the bottom cuboid will need to match the x extents and dimensions of one of the vertical cuboid planes and the y extents and dimensions of the other vertical cuboid plane.
I saw that you posted about this a few days ago and are likely using a plugin for the generation, so I can’t give you a straight answer, but I tried to approximate what I think is going on and how I would fix it.
ch_cuboid_help_01.gh (27.3 KB)
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Also, what you’re looking for might not be possible because your system will essentially have three cuboid elements moving in opposite directions with each other around the corners, so the system would jam in theory. You can see in the video Parametric House released for the plugin that they mostly use the auxetic forms on one face then extrude them in one direction to make a cube shape, which would avoid this issue around the corners.
Thank you so much! I actually watched that video to try and create the cuboid, but it didn’t show how to add the top and the bottom (if it’s even possible, according to what you’re saying). I’m using the Linketix on Grasshopper (like the extension in the video) and I think you might be right.
I figured out a way to add the bottom somewhat aligned, and I adjusted the length and width to be more of a perfect cube rather than a rectangle. Sorry if this is a silly question; do you know if there’s a way to create the base surface (highlighted yellow) and move it upwards? 
Thank you so much again!
