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 Electric Motor Build

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Surfsup
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PostSubject: Electric Motor Build   Electric Motor Build Icon_minitimeWed Dec 09, 2020 8:50 pm

Anyone do an electric build yet? My lawn tractor engine is down again and I'm thinking of going electric. 1000W motor. Just curious if anyone's done this before?
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CraftsmanQuad19
DimeWeld
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeWed Dec 09, 2020 10:02 pm

Few people have, it’s a neat idea but the usual problem is runtime. Welcome to the forum!
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Tour1
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeThu Dec 10, 2020 1:21 am

I thought about using a 1/2" electric drill and chain drive on each wheel. A generator would supply power instead of an engine. (Or get 12 or 24V battery powered tools, optional generator(s) to keep them charged.)
1 british hp is 745 watts, it's close enough to our hp.
A web search found this:
"Hammer Drill Meterk 7.0 Amp 1/2 Inch Corded Drill 850W, 3000RPM Dual Switch Between Impact Drill and Electric Drill, With Adjustable Speed for Drilling Wood, Steel, Concrete & Plastic DIY Drilling is the perfect fit for your needs"
What I like about the 1/2 inch drills is the housing usually has tapped holes for handles & things that could become motor mounts.
At 120VAC 850W would draw 7 amps theoretical, more actual.
That project is on the back burner for me but simmering.


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mr.modified
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeThu Dec 10, 2020 9:58 am

Actually that's a decent idea having a generator running electric motors. Could be a good way to go 4wd if you could get it to work.
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Surfsup
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeFri Dec 11, 2020 4:22 pm

I was thinking of using a 60V 3000watt motor I found and getting some 12v batteries then driving a rear axle using sprockets. I figure I'd get about an hour runtime with 5 12v 12ah batteries in series. I'd need two small motors for each blade mounted directly to the cutting deck. First step is just getting it moving.

Why 3000w? Because my yard isn't flat and I'm 200# and the mower will probably be 100# and if I'm pulling a tree branch or towing a spreader, etc I'll need the power.
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mr.modified
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeMon Dec 14, 2020 3:19 pm

I think it would be cool to see. General Electric had a battery powered lawn tractor back in the day for awhile. They had a couple different models. I think they were a yellow color. Kinda bulky looking ugly machines but kinda cool too. They had a couple volt meters in the dash and I guess they had 3 or 4 car batteries in them. I always thought it would be cool to make an off roader outta one. Saw one for sale but the guy wanted quite a bit for it.
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PostSubject: Re: Electric Motor Build   Electric Motor Build Icon_minitimeMon Dec 14, 2020 4:31 pm

I'm doing this to a LT1000 craftsman mower. I opted for a 2000w motor at 48v so I didn't need as much battery and I'm okay with 4mph on a 20-30 degree grade. On flat she should be plenty fast (30mph). Going with iirc a 11tooth to 54 tooth with stock 17.5 tires. I picked up a 48v 35ah lithium battery pack online for $280. Total cost will be about $680. Nabbed two 40v 2800 rom motors on ebay from ryobi lawn mowers
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