Customizer version of http://www.thingiverse.com/thing:1652151
As requested I made this customizer version to ease even more endcap generation process.
Create your own custom endcaps in a snap! It can't be easier. Press the 'CUSTOMIZE' button, lauch the customizer app and do the magic yourself!! Use the non-customizer version for enhanced documentation and comments.
Here you have another of my customizers for squared endcaps: http://www.thingiverse.com/thing:1654153