Hi This is a bit of a strange question. I keep stumbling into strange (but interesting) projects to play with. What is the maximum vibration level and/or G force standard smt or thruhole will tolerate ? I've been asked if I could figure out a electronic detonator for an airburst charge for snow guns. These are the guns/mortars they use to fire 4-8lb charges at potential slides to trigger them. The trigger will be a pic that simply counts and then fires a electric match after the preset delay. I'm hoping this will prove tremendously difficult so I get to "work" and have to blow things up all winter ;-] Tia Dave -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics