Model Turbines

[Turbine GuyParticipant @turbineguy]

I glued Rotor 6 PLA shown in the last post to a shaft and ran it in Tangential Turbine 6 shown in the following drawing and spreadsheet. I made an error in guessing where to glue Rotor 6 PLA on the shaft which resulted in getting much higher compression on the spring than I wanted, but as you can see in the spreadsheet the performance wasn’t that bad for the first test. Normally I would run several tests to find the optimum position of the rotor in the housing and the best spring compression before adding the performance in the spreadsheet. When I disassembled the turbine to reposition the rotor on the shaft, I found that the extension of the rotor on its outer face had broken off. I mentioned in the last post that the rotor was designed to be cast in bronze and had several areas that were two thin for a material like PLA. I am in the process of trying to fix the rotor assembly but it will require enough changes that it will have to be called a new assembly.

[Michael GilliganParticipant @michaelgilligan61133]

I must confess that I only dip-in occasionally  … but I am always impressed by your dedication to this research.

Thanks for sharing it

MichaelG.

[Author]

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