Hi All, I think my main frame looks very unstable, so I've decided = to start 'all over again'. I'm thinking of making the main frame of one big upright metal = bar (20-30 centimeters wide), not like the two upright pipes = from the article. I think this will improve the stability of the = device. What do you suggest, a aluminium frame or can any metal be used? How big should the base plate be? Any input will be appreciated, Best regards, Marchal van Lare -Nieuwvliet, The Netherlands _____________________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>