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How to make an inverted object? - Printable Version

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How to make an inverted object? - lennart - 02-19-2025

Have to make a cover in STL for a button. So i designed the button, nothing fancy. The goal is a cover as a mould over the button.
Bigger box over it, but BOLEAN > 'difference' doesn't work. Wat is the best way to make an object inverted / as a mould?

RE: How to make an inverted object? - ivla - 02-20-2025

(02-19-2025, 12:34 PM)lennart Wrote: Have to make a cover in STL for a button. So i designed the button, nothing fancy. The goal is a cover as a mould over the button.
Bigger box over it, but BOLEAN > 'difference' doesn't work. Wat is the best way to make an object inverted / as a mould?

Maybe, "shell extrude" helps?
Select faces as you need and use it - you will get a separate object.
If you need some space (a gap) between objects - use "shell extrude" twice, one by the distance of the gap and another to get "cover" object. "The gap object" should be deleted after.

Something like this:  (orange is the selection color)

[Image: 00.jpg]

Select faces:
[Image: 01.jpg]

RMB:
[Image: 02.jpg]

Use direction "by normal" - you get a "gap object".
[Image: 03.jpg]

After extrusion leave faces selected and repeat "shell extrude" by normal once more:
[Image: 04.jpg]

View with deleted "gap oblect":
[Image: 05.jpg]

View from below to "cover" object:
[Image: 06.jpg]