Hello guys,
I present you a software I created that analyzes the pull-pull transmission mechanism. With this program you can predict the rudder play that your model will have with a given commercial double servo arm, if you know its dimensions. Additionally, if you click on the "optimize" button, then you will have the exact dimensions of the servo arm and its offset, so that the rudder play is minimized and no over-tight condition on the cables is produced on all its range. This way, you can build your own custom servo arm that best suits your model.
Surely, there may already exist similar free software that perform this calculations, but I created this program with the merely purpose of learning GUI programming

. I hope you may find it useful and any feedback would be appreciated.
To download the program, follow the link:
https://github.com/Luispain/PullPull...llPullV1.0.zip
Only valid for 64-bit windows running machines. Launch the progam through the
PullPullGUI_v1.0.exe executable file. You may be prompted a message saying that the author of the program (me) is unknown.
Note that the length dimensions of the program says "mm", but you may input inches or any kind of length unit you want, given that everywhere in the program you use the same length unit.
Hope you enjoy it!