At 12:12 PM 23/01/2006, Bert wrote: >I am looking for drawings for an Osmotor, or any help which will allow >me to build one. The last info I have is ads in "Garden Railway Words" >1990 by "Steamlines" and a welsh company called "Falcon". Both no >longer exist at the advertised address.
I'm late getting in on this one, but my 2ยข on the topic: Try another design.......Start out from scratch.......Anything but an Osmotor! As produced by Tom Cooper they were a total pig's ear, requiring upward of 100 hours of running to bed properly. My buddy Bill Shipp has a Steamlines shay that is powered by an Osmotor, and after 100+ hours it is only now approaching a condition that could be described as 'controllable'. The problems are inherent in the design - the spring pressure to hold the cylinder against the port comes from the outside edges of the cylinder, not at the centre of rotation. This compounds friction forces tremendously - not only the cylinder/port face friction found on every oscillator, but two additional moving points of friction on each cylinder as the spring holders move back and forth in an arc as the cylinder goes through a cycle. All in all, a design best lost. regards, pf _______________________________________________ SSLiveSteam mailing list Send messages: [email protected] Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam Rules: http://www.45mm.com/sslivesteam_guide.html
