check out noisebridge on mission, somewhere between 17th and 18th. you'll see 3d printers, laser etchers, textile arts and maybe some cool art. they are open a

check out noisebridge on mission, somewhere between 17th and 18th. you'll see 3d printers, laser etchers, textile arts and maybe some cool art. they are open all the time, with some interesting characters. just buzz the doorbell and they'll let you up.