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This is the prototype Morrison & Marvin Quarter Scale 1903 Kansas City Lightning Balanced Engine.

Now that scientists have decided that Nibiru, our sun's twin star, probably doesn't exist, I feel much more secure here in the center of my universe. Zoom in from the big universe picture and there is my shop, full of equipment I don't have time to use. A closer look reveals several model...

RodW, Interesting production run. I like the Severence 6 flute countersink. I would run it slow, 60 rpm, with a heavy feed. If you are using mild steel as you say, it cannot be hardened by a laser or any heat treatment without addition of carbon so that is probably not the problem. I...

Dave, You are correct in the assembly of the valve. Many early engines had a cast iron head on a steel stem. I will attach a picture of my Pierce engine of the same era showing the rivet head on the valve. No one however, except Dave, machined off the rivet head and polished it into a...

The Simplex casting set was made by Eric in Fairbanks a few years ago. Only a handfull were produced and the detail is very good. The manifold was investment cast using a soluble core in the wax so it could be made hollow around the curves. The flywheel wax was cast in a very complex mold...