Hi,

Guest

JW

Jim Witte

Thu, Jan 13, 2022 5:36 AM

I'm designing a jewelry box and want to "finger indentation" on the lid/box

seam, and I've got the following sketch of a cube with a subrarted

ellipsoid:

difference() {

color("green")

translate([0,0,3])

cube([20,30,6], center=true);

```
// Pocket ellipsoid
color("purple", 0.7)
translate([0,-15,0])
scale([2, 2, 0.9])
sphere(3, center=true, $fn=30);
```

} // if difference

Except this has sharp edges at the intersection across the front and bottom

faces. How could I round these off? (Without importing it into Fusion

which I don't know how to do - but I'm sure it would take about 5 seconds

if I did).

I guessed that I might use minkowski with a small sphere - but that doesn't

seem to work, takes forever, and messes with the geometry outside "just the

pocket".

I thought of making two toruses along the front and bottom edges of the

pocket, but can't figure out what boolean operations to use too combine

them right. Careful placement of the tori, then union them will the whole

model, then one or more unions with the model?

Jim

I'm designing a jewelry box and want to "finger indentation" on the lid/box
seam, and I've got the following sketch of a cube with a subrarted
ellipsoid:
difference() {
color("green")
translate([0,0,3])
cube([20,30,6], center=true);
// Pocket ellipsoid
color("purple", 0.7)
translate([0,-15,0])
scale([2, 2, 0.9])
sphere(3, center=true, $fn=30);
} // if difference
Except this has sharp edges at the intersection across the front and bottom
faces. How could I round these off? (Without importing it into Fusion
which I don't know how to do - but I'm sure it would take about 5 seconds
if I did).
I guessed that I might use minkowski with a small sphere - but that doesn't
seem to work, takes forever, and messes with the geometry outside "just the
pocket".
I thought of making two toruses along the front and bottom edges of the
pocket, but can't figure out what boolean operations to use too combine
them right. Careful placement of the tori, then union them will the whole
model, then one or more unions with the model?
Jim

Replying to:

Empathy v1.0
2022 ©Harmonylists.com