quad-copter second flight after 3d printing new frame and a slight bump after a pilot error, copter is a bit to heavy to yaw at speed with out descending. crash right at the end. ... https://www.youtube.com/watch?v=NCjG3O2r_zQ
test of a direct drive washing machine motor, max output tested on my boat roof was 450w - 500w before over saturation and a run away wind was force 4 and gusting force 5
it had useful power in less wind but needed to be located higher but did not make since until the design was finalised, conclusion was as was for all past turbines i built the generator is the weak link, coreless axial flux permanent magnet generator is needed.
the cost for a 3kw my target turbine size is currently prohibitive.
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https://www.youtube.com/watch?v=Pozk0NliUSg
3d printing with a cnc router, pid temp, mach3, cura.
side note be sure to well lubricate Bal screws as rapid small moves can damage the nut.
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https://www.youtube.com/watch?v=6ZLHjPSVJWs