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So I built a 3D-printed electric Generator into my bike
Please ask me ANYTHING ;D
This was for a school project in physics class.
Bought a Bambu A1 and learned Fusion360.
I took my old bike and removed the rear wheel. Then I printed out the rotor and stator in multiple parts out of PETG and glued them together (beige and gray). The more critical parts are even from PETG-CF (red).
There are cutouts for 27 Neodyme Magnets and 36 Spools. The spools are also 3D-printed and then the copper coil was winded by hand. Then I soldered each spool in three phases together.
One end of each phase went into a star point and the other ends went into two bridge rectifier. I connected each plus and minus together, so I got one plus and minus output each.
Those went into an electrolyte-condensator and then into a DC-DC Stepdown Converter with a USB-A port.
I wish I could attach a second video where a phone actually charges.
I reach peak voltages of 36V.
Just wanted to share ;)
#3d #3dprinting #technology
source
Please ask me ANYTHING ;D
This was for a school project in physics class.
Bought a Bambu A1 and learned Fusion360.
I took my old bike and removed the rear wheel. Then I printed out the rotor and stator in multiple parts out of PETG and glued them together (beige and gray). The more critical parts are even from PETG-CF (red).
There are cutouts for 27 Neodyme Magnets and 36 Spools. The spools are also 3D-printed and then the copper coil was winded by hand. Then I soldered each spool in three phases together.
One end of each phase went into a star point and the other ends went into two bridge rectifier. I connected each plus and minus together, so I got one plus and minus output each.
Those went into an electrolyte-condensator and then into a DC-DC Stepdown Converter with a USB-A port.
I wish I could attach a second video where a phone actually charges.
I reach peak voltages of 36V.
Just wanted to share ;)
#3d #3dprinting #technology
source
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