Board Thread:Questions and Answers/@comment-109.154.139.47-20130125111658/@comment-128.208.36.148-20130125163134

Did you place ore INTO the filter?

Does it have a valid destination (eg, a chest with space available)?

Is it oriented in the correct direction? (Use a screwdriver/omniwrench if it's not)

does it have a redstone signal from a timer?