Has anybody build a separator out of a garbage can. I have tried but the dust gets sucked right through the can to the dust collector. I have the air going into the can through a 45 degree elbow that is mounted in the cover pointing towards the bottow on the can. The house to the dust collector is sucking the air out of the can through a 90 degree elbow mounted in the cover as well. Both of the elbows are mounted inside of the can through a wood cover. Would a larger can help? Baffles? Any help would be appreciated.