Oh don't be silly - I think the best solution would be to have a a small bird tied to the device along with a photo of an owl. When the link fails (presumably due to dust), a small linear actuator will raise the photo of the own and play a "hoot" sound on a tiny speaker. This will cause the bird to try to fly away - which will blow the dust off. MUCH simpler and more elegant solution. :) Sean On Fri, Jun 3, 2011 at 4:14 PM, John Gardner wrote: > Sean - > > Will the budget allow a tiny servo/feather duster? > > =A0Rube > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .