looking for a guide to turn a gas power weed eater into a small emergency power generator
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$2 Answers
This guy has written up a pretty neat version of what you are wanting. He powers his electric robot from a gas motor running an alternator. For your purposes, you could potentially run an inverter to create your ac power direct from an inverter which converts 12v into household AC, or you could run a 12 volt battery in between.
As for the mechanical coupling between the alternator and the engine, this is going to be different for each engine. However, what they all share in common is that they have a centrifical clutch. Up the top of the metal pipe which spins down to the weed wacker cutting head if you open it up there will be a spinning arrangement. This uses gravity... when the engine is spinning fast it causes weights to push outwards against the springs that hold them in. This way the engine can idle at low speed without engaging the blades. Personally i would bolt/weld onto that clutch mechanism. On my one it is shaped like a metal cup, with the centre bolting onto the spinning drive shaft that goes along the pipe to the blade head.
It is likely you have a similar arrangement, so you can pretty much just bolt the clutch onto the alternator. Just a little tip. Inverters don't like the power to fluctuate. If you have a battery then great, that will keep a smooth 12v available. If you don't have that battery in there you will need to consider switching the inverter off when ever starting and stopping the engine.
Good luck.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
