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Blender question for the morning: I have an irregular shape (a rock) that i want to uniformly increase in size, to make a hole that fits the original with a bit of space. Is there an easy way to do this that's robust to messy surface geometry and works for the *entire* object?

23/10/26, 11:35 pm0 reposts0 likes

Sunfire 💚🤍💜

@starlight.garden

I tried using Extrude Along Normal but had a problem where it left behind the original shape inside (no idea why) and even after deleting that i still had some weird single points that weren't where they should have been... got it fixed up enough now, but it'd be good to have a better solution.

Fidel Destro

@fideldestro.bsky.social

If I'm understanding you correctly, there's two main ways to go about that. In Edit mode, tap A to select All, then S to scale, and everything will scale up uniformly. You could also scale in Object mode, and then Ctrl-A to Apply it (otherwise it's like a temporary scale).

Fidel Destro

@fideldestro.bsky.social

I can also recommend a good beginner course that'll get you acquainted with all the basic tools, if you like.

Sunfire 💚🤍💜

@starlight.garden

Scale isn't what i'm looking for. I don't need the size to be uniform, i need it to make a uniform-width "shell" around the original, like drawing an outline with a fixed thickness. there are some concave parts that would be moved in the wrong direction if i just scaled it up, hence the issue

Sunfire 💚🤍💜

@starlight.garden

might have worded the initial post a bit wrong, what i meant is adding a uniform amount of thickness over the entire surface, like drawing an outline with a fixed width

⭐ ᗰᗩᖇᛕ ᗩ. ǤᗩᖇᒪIᑕᛕ ⭐

@markgarlick.com

Extrusion is not the answer. The normal vectors are bound to cross over, leading to a mess. Maybe try a difference boolean.