I had trouble getting this to run, then I realized that the values should be included in a command line. I edited the code to allow the values to be entered into the program.
// sc = scale, set larger if your part doesn't fit. default is the exact dimensions of the connector housing. recomended 1.1 for most mounting holes,
// sz = size, set to the correct size for your dsub. Common values are 17.04 for db9 or high density db15, 25.37 for standard db15, 39.09 for db25.
//dp= depth, set to a size that can penetrate the panel you are using it with

sc = 1.1;
sz = 25.37;
dp = 2;

Creality

Ender 3 Pro

No

Yes

0.16

25%