I decide to make another one newer wade gear from many there are . So, download it [url=http://www.thingiverse.com/thing:18379]here[/url]
It works perfect and because of bigger gear than original one, extruder driver is not hot anymore.
[url=https://www.youtube.com/watch?v=e2wubvNHdH8&feature=youtu.be] big gear [/url]
[url=https://www.youtube.com/watch?v=vYe4vLky0Zg&feature=youtu.be]wade’s gear [/url]