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Outline for cookie cutter (by CookieMonster)
Hi,

I have drawn the shape of a cookie cutter I like to have. Now to make it not a solid shape, but a cutter. I guess I need a second line that follows the first path. The path is of different round shapes and rather hard to recreate.

Any ideas on tricks that could help me ?
Kind of copy the path, shrink it and place it fitting ??

Thank you for the great program, that I already used for more than 7 projects where the 3D printed file solves a problem I had.
Sun Nov 10 2024, 06:16:04
(no subject) (by ruevs)
Look at linking the contour in a new file twice with a different scale factor.
https://solvespace.com/ref.pl#Link
https://solvespace.com/box.pl
Sun Nov 10 2024, 08:36:24
(no subject) (by ruevs)
Alternatively - Copy, Paste Transformed.
Sun Nov 10 2024, 08:38:35
(no subject) (by Ali)
Just to share my experience, I have had good results making a second inner curve when the outer curve is constructed from arcs, straight lines, and non-C2 bézier curves. They permit (construction) tangent lines and perpendicular lines to aid in making corresponding offset points to put the inner curve through. Using a scaled copy requires some guess and test to get the right scale factor. Whereas arcs, lines, and non-C2 bézier curves give points and lines to help constrain a second inner copy.

See an attached example file with (approximately) the same shape made with three different methods. (1) a non-C2 bézier curve with tangent and perpendicular construction lines to help make the inner curve. (2) A multi-point C2 bézier curve with a paste-scaled inner curve. It required some guess and test via linear interpolation to get the scale factor used. (3) A collection of arc and line segments with construction lines to aid making and constraining the inner curve.

One note is that only method (3) reliably makes an inner curve with a consistent distance between the inner and the outer curves.
Fri Nov 15 2024, 17:49:13, download attachment offsets-examples.slvs
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