Your Seattle Public Library branches offer more than reading, viewing, and listening material (as this WSB story reminds us) – they also offer free workshops and classes. And Sandra Sinner from the Delridge Library sends word that there’s still room in a two-day class this weekend teaching 3-D printing design to beginners: 1-5 Saturday (info) and 1-5 Sunday (info). Free, but you have to pre-register, so if you’re interested, do that ASAP by calling 206-733-9125.