The video is at nicovideo which normally requires you to have an account.
If you don’t want to go through the trouble of making one,
copy the original link in the credit section above and
use a nico redirector like this one
http://www.mmcafe.com/nico.html
to view a rowlet being made out of glass.

モクロー作ってみた [ニコニコ技術部] ニコ動10周年おめでとうございますこんにちは、ガラス野郎です僕がガラス動画を初投稿してから9年が…