View Full Version : air hole spacing?

11-10-2008, 09:44 AM
Anyone know what is the ideal spacing between the airholes on a vacuum table? I'm going to be forming molds for concrete veneer and pavers. I'm not sure how far the holes would need to be from the edage of the master.

11-17-2008, 12:43 AM
I have no idea the answer to your question, but I am of the opinion that you only need holes under the shape you are forming.
I can not see why there is a need to put holes outside the shape.