# package OSCADml

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Library

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# Axial Chalice

```
open OCADml
open OSCADml
```

A function from `z`

(angle `a`

is ignored) to radius that we will use to define both the outer boundary of the chalice, as well as the cup volume to difference out of it. Since we are ignoring `a`

, the radius will be consistent all the way around the z-axis for each height `z`

.

`let f ~z ~a:_ = Float.(5. *. (cos (log ((z /. 5.) +. 1.) *. pi) +. 2.))`

Form the `outer`

and `inner`

(to be subtracted from `outer`

) meshes by evaluating `f`

between the given z bounds. We'd like `inner`

to be narrower that `outer`

such that it fits inside, so we subract from the radius returned from `f`

uniformly.

```
let outer = Mesh.axial_plot ~min_z:0. ~z_steps:50 ~max_z:50. f
let inner = Mesh.axial_plot ~min_z:2. ~z_steps:50 ~max_z:51. (fun ~z ~a -> f ~z ~a -. 2.)
```

Convert the `outer`

and `inner`

meshes to `Scad.t`

s, and difference them before outputing to file.

```
let () =
Scad.to_file "axial_chalice.scad" @@ Scad.(difference (of_mesh outer) [ of_mesh inner ])
```

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