Chainsaw torch gas engine powered spotlight
I've wanted to try this for a while as crazy as it sounds; Make a mini electric generator with a small engine and a home fitness cardio equipment motor, Add this to some car car front lights and you get one very loud flashlight/spotlight.
An electric motor is defined as a generator and an electric generator is largely an electric motor. I'm sure a lot of electrically proficient peeps will shake their heads at the methods here, However all just fun, Nothing enormous.
(I want to add that I squeezed this project out to meet the torch contest deadline; Still needs a voltage regulator, A clean shield for the chain and sprockets, Plus some alterations and fancy paint work.)
Final treatments to this machine, A voltage regulator is unnecessary if the saw throttle can be incrementally adjusted with a hose clamp. Hook up a multimeter and set the throttle before plugging in the sunshine. Also the gearing in this instructable is way exorbitant, The DC motor sprocket needs to be much larger to take your time. I can hand turn this DC motor and ask 2 to 3 volts, So the chainsaw should barely be running above idle discover the right voltage. This project might be dramatic; Maybe the very when I'll use a lawnmower engine;).
To the Creator it's old news, I mean as a bush man i was hunting one fall day when i left my lights on when i walked away from my truck returning 6 hours later it wouldn't start as the batteries were dead, A slave to i thought it is a 30 mile walk or better yet charge the battery, I used my small chainsaw to charge it, Removing the belt from the alternator and the chain and bar from the saw i put the belt over the clutch, To ensure the direction of travel was the same, I started the saw hand pulled the belt tight and for one or two minutes turned the alternator to charge up, Replaced each and every step and started the truck,
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Cheap Oakley Shades, gord, As for the light improper, Yet make it for loggers at night led to run off the handlebar heater,To light you workshop, And also cooler two leaser lights triangulated to set at 49.6 feet to end up making one dot( Saving building a tape to measure the log and cut
It actually makes no difference what direction the alternator is turning, Either way costs positive or + on your positive lead or post and minus or on ground / casing.
The alternator makes 3 phase AC power inside alternator, That's why it wouldn't matter what direction the alternator is turning. Then before leaving the alternator the power is in 6 diodes or rectifiers that turns the Ac power into DC.
Motive i said '' actually '' is.
Electrician it don't matter, But you now have the cooling fan on it and it matters what direction it has to run to cool the alternator under the hood under constant load and heat.
But for short run or with less load it wouldn't matter either.
I never would had considered to use a chainsaw like that, That is very ingenious and convenient to use when stranded.
Great letting us know.
Rob if you go with a higher watt bulb( Ever increasing beam) 55watts, The bulb is unlikely to burn out. Or use 2 bulbs or even more. Knowledge, If you add a 12 volt battery and hook it up parallel to the light with respect of good and bad, The battery would keep the voltage at bay. But you have got to add a switch right at the generator/ motor so if the chainsaw light is not in use the DC motor can not drain the battery. Using a battery with your chainsaw generator / motor has an advantage which you could run the chainsaw generator only part time and still have light, If the light dims down just start the chainsaw generator until battery pack is charged again. Drawback using a battery your; The battery could overcharge or heat up over the years. But if you match the wattage of the bulbs this is simply not a big problem. Total number of watts does your DC motor have? When you've only volts and amps listed you can calculate the watts. Improve volt times the amps,
Oakley Razrwire, That will be motor watts. Then since you apply the motor as a generator you have some losses of about 60% 70%= about 65% average Now take the motorwatts and multiply by 0.65 that is precisely what your chainsaw generator can produce. As an example if your DC motor says. Volt= 24V amp or maybe a = 5. 24 x 5 = 120 motor w. 120 back button 0.65 = 75 dynamo watts. Now match the lamps to the wattage. Or option about 60 65 watts. Be: A power saw can make up to 12,000 revolutions per minute, Do not turn the generator / motor repair high RPM it could and will fly apart. Stay contained in the RPM of the DC motor, That is on name tag.
It depends on the watts of your generator if use a motorcycle battery or if it would be better to use a car battery. If the alternator of the motorcycle puts out on the same as your generator I would say maybe yes.
We should instead define ' a dead battery ' first.
A Battery That Will Take A Charge But Will Not Hold A Charge After a period. This can be maybe used, But first before you start your chainsaw light the battery will not control or balance the voltage, But after battery pack starts to create bubbles then it would be ok.' but you could begin charging your battery first without the light, Then later on switch the sunshine on.
A Battery that won't Accept A Charge( No or little pockets) At All cannot be Used At All.
You'll want to use a battery that is good.
Or the better option is to get a load control used for windmills.
The best option would be to use a battery and a car alternator with internal voltage regulator this way you would not have to volts and amps, But a alternator consumes about 40 watts to operate and operate and you need a battery for it to operate properly, Higher or lower RPM could not mater if you stay between 1200RPM( Start by of full power) To 4000 RPM in alternator.
I like everything done here. Some people my laugh at you, But I think it is very very worthwhile and a cheap generator. It could be including a battery and a inverter( 12V DC that can 120V AC) And former mate used as a emergency generator to have a 120V light and / or a 120 V TV powered.
Remember 1 HP = 736 Watts in electro-mechanical terms.
Car alternators have within in the middle 60 amps to 100 amps, So the max with a 100 amp alternator would be 12V X 100A = 1200 watts without the 40 Watts = 1160 watts output. But you would wish a chainsaw with about 2 HP or better output.
If you can build a gen set based upon a car alternator your best(And most cost-effective) Is a single wire chevy. The aged ones run about 63 amps. They can be rebuilt to produce higher amps but you may run into difficulty over heating. This could be avoided by using an alternator from a mid to late 1980s 80 amp alt and have it rebuilt to a higher(About 120 there's no doubt) Position. Because it is physically larger it is not required the issues with the cooling. I learned this from online resources the local automotive starter/generator/alternator rebuild shop. Peace of mind,
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I've wanted to make generators from a weed eater and an alternator for the longest time, And all my research says that a battery have to be used for an alternator to work. You're, It supposedly can burn out that regulator that's inside battery pack. I'd say if you ran a car on just power from the alternator then it has been a model that didn't have an internal regulator, As some older ones apparently don't own them. Also on aging cars, You do not need the electric system for them to run, Mention a few use lights/radio/etc. Within,
Oakley Sunglasses For Kids, Take advantage of, Appreciate this idea! Like I said I've wanted to build such as this but never thought to just weld bike sprockets to the shafts and use a chain! I was looking at some kinda direct drive thing. I look into making a small generator for camping trips and this helps a lot!
Word of caution FOLKS: Do not accomplish this.
Nicely, I done that too about 25 common, Which enables me feel old.
In Idle it might be ok. If you improve your RPM and turn your lights on You will replace all the light bulbs on your car and that was a old car without electronics.
Not having the battery the voltage regulator can not function right and will put too much or not enough power( Volts as well as amps) Out or will probably be erratic in power output.
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