these are a collection of scripts and layout for creating IDTs within openscad as well as some fun layout on wafers. Currently these scripts only support bidirectional IDT but i will be adding more in the future. but you could create cool IDT on wafers like this:

to start

download openscad

$ sudo apt install openscad

clone this repo

$ git clone https://git.sirlilpanda.studio/sirlilpanda/openscad_parameteric_IDT_creation_scripts.git

create a new openscad file within wafer layouts for this example it will be called your_new_idt_layout.scad

...
|
├ wafer_layouts
|    ├ cross_pattern_idt.scad
|    ├ hex_layout_idt.scad
|    ├ pair_idt.scad
|    ├ quadrant_array.scad
|    ├ your_new_idt_layout.scad
|    └ single_idt.scad
├ common_params.scad
└ README.md

add the required files to get started in your your_new_idt_layout.scad

// > your_new_idt_layout.scad
// the idt module itself 
include <../modules/bidirectional_idt.scad>

// a module for nicely displaying the parameters used for your idt
include <../modules/parameter_text.scad>

// a simple wafer model that wont get added in to your final design
include <../modules/wafer.scad>

and lastly copy in the common_params.scad in to your your_new_idt_layout.scad, these are just common parameters that each design need such as frequency and speed of sound in your substrate.
now you can add as many idts to the wafer as you want.

check out single_idt.scad and quadrant_array.scad to see what is possible with these scripts.