The latest versions of matmatic come with the Loom built in.

http://www.runtimedna.com/forum/showthread.php?25805-Matmatic-Loom

http://www.runtimedna.com/forum/showthread.php?25833-Matmatic-Loom-Downloading-weave-patterns

http://forum.runtimedna.com/showthread.php?25832-Matmatic-Loom-Making-your-own-weave-patterns

and

http://forum.runtimedna.com/showthread.php?25810-Plaids-using-the-Matmatic-Loom

 

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)