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I have a Grizzly G4003g and there have been reports of finish issues related to motor vibration. As I recall the issues had to do with the single phase Chinese motors. A variety of solutions were offered including changing of the motor and isolation mounting of the motor. I replaced my motor...

In the case of the BR2, the oil is not recirculated. Hopefully the metal contaminants will be exhausted along with the spent fuel and oil. I suspect that is was the intent of the original design that all of the parts be bathed in an oil fuel mixture which is why an oil that is not soluble in...

Here is a video of the Blackmore version used in an RC model. When complete the 1/4 scale version of the Blackmore is about 16 lbs and will use a prop of about 27". I have not seen any implementation of the Ageless version that has been used in an RC model.

Joe, I can agree more. For me it is all about learning new things. There is lots to learn. For me it all the ins and outs of my CAD and CAM software as well as my new CNC controller and mill. It is always good to have a project to help you push your limits. Howard

Joe, I am very happy to see an active thread on building the BR2. I am planning to build one as well. I have the 1/3 scale plans from Ageless Engines and the Blackmore book. I have opted to go with the 1/4 scale which more closely follows the actual engine design. I have been modeling the...