3 radial cylinders

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hello
Is your radius turningmashine homemade ?
it is a device to cut spokes in a grinding wheel, I replaced the diamond with a lathe tool.
provisional motor assembly


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hello
the engine finished
 

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Thank you for the plans link. You put the plans picture many times in your posts.
Sorry my laziness. After looking at all your wonderful posts today , again,
are the valves made from screws? Were the stems good enough? or did you
cut the seat and then cut/polish the stem? or just the opposite? take a screw
finish the stem and then cut the head? You must have wonderful German screws
available. Thanks,
The proof is in the running, that is a wonderful running engine.
 
I've got a question about your valves. I see that you are making the valves out of a countersunk phillips' head screw. That's a neat idea, but I'm wondering if that could lead to potential hot spots on the valves? Is this the first time you've used this type of screw for a valve, or is something you know won't cause problems? I realize that the vast majority of model engines don't exactly see what you'd call "HARD" use, so a hot spot would probably never be a problem.

Don
 
I have already built several motors with this process, to run a few minutes at each session there is no problem
 

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