I believe that I purchased the last of Brad Smith's Bremen castings in 2007 -- one set for each engine. I just finished the walking beam engine in April 2013 ( a LONG time of shop inactivity) and it works beautifully. However, I made a number of construction changes, primarily due to different materials that were available to me. Also, modified assembly construction so that I could take the engine apart if needed. He had many sub-assemblies silver soldered together. Although the WB Engine prints were detailed, I found a number of critical errors in trying to mate parts together. I quickly learned to check print details on all mating parts for proper fit before committing to metal!! Lastly, some of his castings were pretty porous and I had to make some new patterns and castings. The walking beam itself is very weak where it joins the "slide blocks" and had to be welded after it broke in gentle handling. Not a real easy engine to build, due to needing very accurate alignment of many assemblies. The worst is the water pump, as the pump rod is a direct connection to the power piston -- same as the original engines. Very nasty to align. Now I'm on to build the "vertical" engine. Should be a piece of cake this time. Hope these comments will help someone.
