Hello everyone.
We've created a tool that can help designing a 18650 or similar battery.
In case anyone else finds it useful - it's freely available here:
http://e4bike.ru/page/battery-shape-configurator
The picture can be saved in .png file with a right click.
This is work-in-progress version and (hopefully) will be improved
Looking forward to your feedback! 
(Please disregard that the rest of the website is in Russian - we're working on translating it)

We've created a tool that can help designing a 18650 or similar battery.
In case anyone else finds it useful - it's freely available here:
http://e4bike.ru/page/battery-shape-configurator
The picture can be saved in .png file with a right click.
This is work-in-progress version and (hopefully) will be improved

(Please disregard that the rest of the website is in Russian - we're working on translating it)