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I've built engines both larger and smaller than the original design. All have worked out fine. One consideration not mentioned so far (likely because it is os obvious) relates to fasteners. You may not be able to find "exact doubles" of the originals - just use what's close watching for...

Very nicely done. You may not think it perfect but it sure looks good from here, especially given that it's been cast and not fabricated/machined.

Reminds me of a story from the development of the Rolls Royce Merlin engine ... apparently test engineers would check for detonation in an engine running in a test cell with a piece of metal between their teeth. Seems engineers were made of sterner stuff back then.

Thanks everyone for the kind feedback. PeterT - My standard answer to the usual questions about "what it does or will go into" is usually "nothing". It's amazing how many don't understand that it's about the journey and not the destination. Doesn't matter if I'm building something or going...

Last autumn I gathered up the drawings, magazine articles and castings for a 1/4 scale Anzani 3-cylinder radial model (aka Y-type). The castings consisted of crankcase halves, rear cover, carburetor and intake pipe elbows. Everything else is bar stock. Yes, that includes the cylinders. They...

Excellent work. The old adage about changing one thing leads to 10 other revisions comes to mind ... In case you decide to purchase a propeller with a thicker and larger diameter hub, Falcon Propellers does some nice wooden props in a couple styles. (I've no connection, just a satisfied...

When I got the mill it was missing the original handle/knob for the manual quill feed (the one used when the quill drive is engaged). What you see is the replacement I made.

Ask away Susquatch … us Hartford guys need to look after each other. <grin>

For what it's worth, here are a few photos of my 3 axis DRO installation. These are "old fashioned" glass scales installed quite awhile back. Please excuse the lack of cleanliness - just finished work on 3 cast iron cylinders for the current engine project and that stuff gets everywhere...