As your speed increases past 160kph, you can switch the electric motors to series to stop the back emf. You could then line up next to a Top Fuel dragster down at the local dragstrip and in all likelihood hose it off LOL.
I hereby nominate Marty for World Dad of the Year. Such an inspiration to his children, having them help when/where appropriate, then taking what 99% of the world would see as junk, and making a friggin' electric rocket!!! Sir, you are amazing!!!
Well Marty I might be 5 days late to this video , certainly no shortage of smiles though, what a great creation ,repurposing old hub motors onto a free quad, ice thing about whatever the torque rating is , you have 100% all the time , at 30% it ran great , then both batteries in parallel and then turned up to my guess 40%, it goes really well, the 2nd battery on the front is good, it'll stop you from dong wheelies 🤣 it'll be a hoot to use to go and pick up your mail, your battery life on those is going to last you quite awhile, there is almost no weight for them to push, i look forward to the next video, my friend here in central Canada where we get lots of snow, his wife bought him a EGO battery powered snow blower, a 2 stage unit, I got a chance to use in 10 inches of fresh snow and man does it work nice, throws it 50 feet and you get a solid hour out of the 2- 7.5 amp/hr batteries that are 56 volt, when my gas unit dies, that is what i am buying and it is built as strong as my gas unit, 👍 BTW Marty was Dr. Nefario your teacher or influencer 😉 just curious
This might be the most amazing thing that you've done, and you've done a HECK of a lot! You've also got one heck of a mobile power station there. It could be a pretty good backup for the house. Thanks for the video Marty! Say hello to the family from us in Minnesota, USA.
The venerable Honda 250 Recon was supposed to replace the 1988-2000 Honda trx300,but only came as a 2wd,was not the uber reliable,almost bullet proof 289cc side shaft engine that won Honda a solid reputation for reliability and toughness but a transverse mounted,shaft driven,smaller displacement,even weaker rear diffed utility type atv that only an elderly grandfather could love... The "big red" 300 that marty has is the identical Honda trx 300fw that was sold in America but the tank was rebadged with Big Red instead of fourtrax... the 88 300s came with a slightly higher lift and duration camshaft, did timing chain,harder chain guides,a different header,and a slightly larger pilot jet and main jetting which produced slightly higher torque and hp ratings than the 1990 and later models..
I believe that if you touch both bare 72 volt battery contacts you will STOP your HEART!!!!!!!! DC voltage above 48 volts enters the danger zone, please protect your children and enclose those open contact connections. Like the overload breakers mm. away from your hands as you check the temperatures. A nice video showing your wonderful abilities, just pray no one gets hurt with the wiring.
If a shop did this to anything of mine I’d be pissed. Imagine taking your atv to get diagnosed and fixed and getting it back in boxes full of pieces. Glad I work on my own stuff and avoid projects that people have already had their hands on.
dude - if diagnosis is that its fit for the scrap pile why spend valuable mechanic hours putting it back together? At least around here they are expensive and I'd not want to pay for them to put it back together if its not worth fixing
Great video mate. When we all see you laughing whilst riding along and swearing at only 30% we know you are having fun. Must be very rewarding when it all comes together. 👍
I think a shout out to BigBattery is in order = ) Thank you BigBattery for making a whole bunch of us grin ! Looking forward to the next installment Marty and to seeing you roll over the 500k mark ! Hope you are all safe and well.
I've been watching & following Marty from the beginning. This man works so hard, it would be nice If anyone out there knows how to get this man a Mig/Tig welder. Maybe Yeswelder could sponsor him and his wonderful journey. Just reaching out to people /followers on TH-cam❤
With that much power, I imagine it will be pretty good at towing too. Not just heavy ATV or small trailers, but things like harrows too. This may very well prove to become one or your favourite tools for certain jobs. An ingenious idea to convert it to electric rather than fixing what would be a relatively mediocre ICE ATV. Whilst EV/battery technology still has some way to go, this also nicely demonstrates quite how far we have come already. A very enjoyable and fascinating video.
I'm not sure it would have enough torque to pull harrows. Looking at similar hub motors online they appear to have about 350Nm of torque, so 700Nm torque combined. A 12kw tractor will typically output up around 5000Nm at the wheels due to the effect of gearing. So in effect, the motors that Marty is using are great for high speed, but not something like pulling heavy loads. I'm just an armchair critic and you might be more right than I think. I would love to see Marty T test it... :)
@@alskjflaksjdflakjdf On a field, I think you are right, but for tidying up the driveway, perhaps it would be enough. I should have clarified what was in my mind at the time.
To hell with that. I want to see how it goes when maxed out. But probably not on that narrow track, and definitely not while riding one handed while the other held the camera.
@@TrevorDennis100 I doubt the frame of the ATV is meant for more than the 60kph he already achieved. With his modifications (more like rebuild), he should be careful about pushing the specs as well. We wouldn't want him to get into an accident. On the other hand, limiting the power should help him keep the controllers cooler, especially since he might not install the fans at all.
This series should blow you right through 500,000 subscribers. What an amazing project! The concept is SO cool and a big thanks to the friend who hooked you up with the motors and controller and Big Battery. You've done a lot of very cool projects but this one knocks the cover right off the ball. I think it's because I know your using 30% of the capacity of those motors. I think it would be a good investment to spend some money and buy some appropriate rubber for the back tires. Keep up the great work Marty and for goodness sake - stay safe. All the best from Pennsylvania, USA!
Brilliant video, mate. I'm disabled and I use an electric wheelchair. I'd love to have something as souped up as that quad! 😂 Hope the motor repair isn't too tricky.
Around 22.05 MartyT looked like my 3 year old daughter when I introduced her to her upgraded 36v Barbie atv quad which would do burnouts from a standstill,rolling burnouts,easy donuts dry or wet,do wild enough donuts to sling her off and make her giggle,laugh, scream and shout joyously !😂
I know someone who really enjoyed driving the modified electric quad 😊 Enjoyed seeing you convert the quad Can't wait to see updates once you get the part
Imagine having a way to use these electric motors in some form of Bull Dozer or even road grader! Beautiful job Marty, ty. Gotta admit I never imagined you pulling something this off the wall off but I'm glad you did. 😮😅
You never cease to amaze us one of the best technical channels on you tube with practical no nonsense projects that you make work well done keep them coming 👍
Hi Marty, I've been watching your videos for a few years now, since my granddaughter moved to NZ ,You do amazing things with every video you do, Don't know what your background was ,but they must miss you where you use to work. I look forward to every post. Thank you for being you. Gord , Ontario Canada
Who would ever have thought you could re-power an old shitter Honda Quad with something like that? Congrats, Marty - -that thing will be a beast when the new bits arrive,
You are at least a 3x genius!!! #1: genius to come up with this project. #2: genius working through all the details and problems electrical, electronic and mechanical. #3: genius that all work was performed outside, on a gravel drive with nothing more than a pistol drill, basic mechanic's tool set and a stick welder. What a talented guy!!!
What a great project Marty, you made an electric setup look simple when compared to the all those parts from the old petrol engine. You just have to understand the electrical components and how the power system flows. In the states a-lot of schools are having electric vehicles projects and contests and ive found its been making these electric motors much more available. Lots of opportunities for cool projects.
I wish I understood electrical stuff. Petrol and a carb, and I can go full Marty T on it. Add wiringelectrical/computers and well... That is the end of it. Lol.
I've been driving my electric work van for 6 months now and I'm never going back to combustibles. Just so much more relaxing in every way. Great build.
Damn that thing moves. Nice job Marty. I would be having a look inside the other motor whilst waiting for the new bits because of that funny noise it was making.
you should clip 1:28 and make a tshirt out of it along with your, "...that doesnt actually look bad to me!" because for the majority of us out there im guessing that looked like a bloody nightmare!
Great job. I have converted several gas engines to electric power and am always surprised by the instant torque and noise reduction. Problem is the batteries need to stored in pretty stable temps or their life is limited. The cost of batteries and their life span has always been the problem. Charging, as you have shown, can be overcome/mitigated….
Me too, I had to cut out lots of giggling like a schoolgirl .. Ive owned a 180hp r1 and many high powered moto x bikes but this thing is somehow more fun 😆
Another amazing project, Matty. I reckon that would be a fantastic business, converting old quad bikes, for hunters fishesrs and farmers to help them reduce their carbon footprint with the added bonus of stealth mode
You know how you're not allowed any more tractors tell Mrs T that you are going to make a battery one and judging from her massive grin while riding the _death machine_ you'll be golden with the tractor. 👍👍
What a cool project. At first when I read the title, I thought that this would turn out to be nothing, but your fabrication skills are fantastic with relative simple means. I'm amaized that you managed to turn that old ATV into a well running fast EV.
Depending on the cost of everything needed, I think I'd consider a project like this myself. Use it for around the house and power it with a solar charger
Great idea, great talent and imagination. If I were younger and knew the world as we know it was to be ended I would like to be Marty`s neighbor. It never hurts to be survivor prepared.
Great video Marty, you never disappoint!!! 2 things - Please be careful matey, those speeds on a quad can end in a long hospital stay! & that DC current limiting trip you fitted are known to be unreliable / possible source of fire (check out the issues the self build camper community has had with them), a regular fuse is a much better bet.
Need to find a flat long place and see what the top end is . With full face helmet ⛑️ and a scuff suit . Could be a guinness book of records maker . Might need a speed fairing . Lots of records for motorcycles don’t see any for a quad .
Wow 15 kw on a small quad is insane, be careful with that. One of those motors going through the existing diff would have been plenty. One of those motors would probably run your saw quite well. Self vulcanising rubber plumbers tape is great for making seals around things like that shielding around the wires, I hope the silicone lasts but will probably leak soon. Great bush engineering once again.
Very well done. Such a clean build. To keep the centre of gravity as low as possible couldn't you make a frame to mount the second battery under where the rear carry rack would be? Other than that the only other suggestion would be to add an AC inverter somewhere. Because basically you have a very portable power supply and it might be handy to be able to operate 240V AC power tools in remote areas. If not permanently mounted then maybe just add an Anderson socket so you could plug in an inverter (or other DC device) and have 240v AC wherever you wanted. You could probably run it directly from one of the battery connectors but that would give a charge imbalance so an Anderson socket at the 80v DC point would be what I would do.
This project is so exciting, can't wait for the parts to arrive! You make a lot of work look easy but I'm sure it's not all flowers and rainbows. Well done!
Either two micro switches or a circular encoder would be great on the steering tube to activate a specific state where when you turn the ATV, the inside drives either disconnect and freewheel or they reduce power (probably the better, but i'm not sure how easy the programming is on that brain box).
Gotta ditch those ugly white zip ties and use some professional black zip ties :) Better yet would be some adel clamps for that motor wiring, that would look sharp! great little project you have btw. I have a low speed vehicle that was originally electric but was gutted so i'm thinking of using a diesel engine on it, its basically a golf cart that is street legal.
If it’s anything like my electric skateboard. It’s a Hall Effect sensor problem. On my skateboard, I just unplugged the sensors and everything worked. However, it then only had two modes... Off and mental. Edit: Aaand I just watched the end of the video. Yup. Hall sensor. I’m a total noob at that stuff but it’s amazing how quickly you can pick up the basics and start building. I hope this fantastic video inspires others to do the same.
With only using a fraction of the available power, and those adjustable torque settings, I'll be really keen to see what it can pull when you have it all back together and you're doing your testing. Hope you're considering knobblies for the back!
A quick thought/suggestion for you: It looked like those controllers could be set up to take a speed target instead of a torque target. Are you familiar with the concept of single pedal driving that's getting popular with EVs? The major benefit is that it allows for modulated regen breaking instead of just banging on some % braking force, and allows the regen braking to be fully independent of the friction brakes so that you recapture as much energy as possible before you ever need to touch the regular brakes. If I were to guess I imagine having the throttle input set a speed target instead of a torque target, with a reasonable torque limit, would get you the same benefits here.
Good job Marty. I put an electric motor in my 3yo daughters 50cc quad about 12 years ago, a much simpler build than this one, a 24v 500W motor & chain drive to original shaft, 36v controller & 3 x 12v 14A batteries, it did about 25km/hr & the kids all loved it. Love ur stuff & cant wait to see what you delight us with next. Cheers
It's videos like this that make me crazy jealous of the wealth of information you have stored in your head. At the beginning, looking at that box of parts, I would have been totally overwhelmed and never started a project like this. You make it look so simple and matter-of-fact, but there's an extreme level of expertise behind everything you do. I wish I could just hang around the farm and absorb 1% of your skills and knowledge!
18:45 Learned this in the hard way as my Campers waterpump did not have that kind of diode and it is controlled by canbus type system and that lead eventually destroying my waterpump node. Now got a new one and pump with diode. This was actually a designers fault but they find it about 10 years time as those nodes suddenly broke in many campers!
Absolutely Brilliant! You have created a silk purse from a sows ear. Looking forward to the repaired silent monster. Would you ever take it on a paved road to see what the top end could be? Thanks for sharing.
You make some of the coolest gear on TH-cam! No fancy CNC's, just basic tools. It's inspirational!! Cheers!
Watch out Elon, here comes Marty...
He and Allen Millyard as well as Andrew Camarata are special people. they see solutions to be done. not problems.
dude is a genuine genius i swear
Kiwi ingenuity all day with this guy.
@@cv990a4 elon would employ him he loves this stuff
As your speed increases past 160kph, you can switch the electric motors to series to stop the back emf.
You could then line up next to a Top Fuel dragster down at the local dragstrip and in all likelihood hose it off LOL.
I hereby nominate Marty for World Dad of the Year. Such an inspiration to his children, having them help when/where appropriate, then taking what 99% of the world would see as junk, and making a friggin' electric rocket!!!
Sir, you are amazing!!!
looked like he got some husband points out of this one too
Team up with grindHardPlumbing.
They take the running gear from quad bikes and shoehorn them into frames to fit kids plastic car bodies.
Well Marty I might be 5 days late to this video , certainly no shortage of smiles though, what a great creation ,repurposing old hub motors onto a free quad, ice thing about whatever the torque rating is , you have 100% all the time , at 30% it ran great , then both batteries in parallel and then turned up to my guess 40%, it goes really well, the 2nd battery on the front is good, it'll stop you from dong wheelies 🤣 it'll be a hoot to use to go and pick up your mail, your battery life on those is going to last you quite awhile, there is almost no weight for them to push, i look forward to the next video, my friend here in central Canada where we get lots of snow, his wife bought him a EGO battery powered snow blower, a 2 stage unit, I got a chance to use in 10 inches of fresh snow and man does it work nice, throws it 50 feet and you get a solid hour out of the 2- 7.5 amp/hr batteries that are 56 volt, when my gas unit dies, that is what i am buying and it is built as strong as my gas unit, 👍 BTW Marty was Dr. Nefario your teacher or influencer 😉 just curious
Great reuse rather than melt down and recycle. Jim Bell (Australia)
Nice call on the LFP batteries, use em til they're dead and charge em back to full - they're true tanks
Those hub motors cone in sizes up to 8kw with peaks 2x or 3x for shorter periods. Enough to power a small car at freeway speed.
Now to take it for a ride along that abandoned section of highway near your property,see how it goes on a decent stretch of road
When i hit the lottery Marty, I'm gonna buy you a plasma cutter! Very cool video!!
Brilliant! But please wear a helmet, those kids need you.
On the second high speed run on the wider gravel road...if you stop the action...you can see Marty was wearing his full face helmet..
This might be the most amazing thing that you've done, and you've done a HECK of a lot! You've also got one heck of a mobile power station there. It could be a pretty good backup for the house. Thanks for the video Marty! Say hello to the family from us in Minnesota, USA.
The venerable Honda 250 Recon was supposed to replace the 1988-2000 Honda trx300,but only came as a 2wd,was not the uber reliable,almost bullet proof 289cc side shaft engine that won Honda a solid reputation for reliability and toughness but a transverse mounted,shaft driven,smaller displacement,even weaker rear diffed utility type atv that only an elderly grandfather could love... The "big red" 300 that marty has is the identical Honda trx 300fw that was sold in America but the tank was rebadged with Big Red instead of fourtrax... the 88 300s came with a slightly higher lift and duration camshaft, did timing chain,harder chain guides,a different header,and a slightly larger pilot jet and main jetting which produced slightly higher torque and hp ratings than the 1990 and later models..
Cool conversion, but I wouldn't want the weight of the 2nd battery up so high. I would have tried to put it in the back, behind the seat.
This is a great prototype. Imagine a version with a few tweaks to suspension and balance and tires. Bravo.
Marty, absolutely impressive. Consider a roll bar and upping your accident insurance. Just sayin'.
I believe that if you touch both bare 72 volt battery contacts you will STOP your HEART!!!!!!!! DC voltage above 48 volts enters the danger zone, please protect your children and enclose those open contact connections. Like the overload breakers mm. away from your hands as you check the temperatures. A nice video showing your wonderful abilities, just pray no one gets hurt with the wiring.
If a shop did this to anything of mine I’d be pissed. Imagine taking your atv to get diagnosed and fixed and getting it back in boxes full of pieces. Glad I work on my own stuff and avoid projects that people have already had their hands on.
dude - if diagnosis is that its fit for the scrap pile why spend valuable mechanic hours putting it back together? At least around here they are expensive and I'd not want to pay for them to put it back together if its not worth fixing
Snip "It's done" had me cracking up. :D
Awesome content as always Thanks for sharing and taking us along
30:50... I believe I saw a big smile and someone saying WEEEEEE. There's a kid in all of us.
It's oddly satisfying to be so happy for someone on the other side of the world. Thanks for sharing!
@25:03 "That's not going anywhere"..... classic!
So cool Marty. I think we should vote you in this year’s election..
Great video mate. When we all see you laughing whilst riding along and swearing at only 30% we know you are having fun. Must be very rewarding when it all comes together. 👍
Marty is a genuine number 8 engineer genius..he's missed his calling electric quads have got amazing potential
9:16 sick cut man
And screen capture!
I think a shout out to BigBattery is in order = ) Thank you BigBattery for making a whole bunch of us grin ! Looking forward to the next installment Marty and to seeing you roll over the 500k mark ! Hope you are all safe and well.
All I’m saying is you need more space for that second battery. Logic leads us to @marty making an epic 6x6!
I've been watching & following Marty from the beginning. This man works so hard, it would be nice If anyone out there knows how to get this man a Mig/Tig welder. Maybe Yeswelder could sponsor him and his wonderful journey. Just reaching out to people /followers on TH-cam❤
Call Miller/Hobart. Bet they'd ship him one.
What's stopping him just buying a welder?
Nice electrical contact cleaning brush! 🇦🇺😁
With that much power, I imagine it will be pretty good at towing too. Not just heavy ATV or small trailers, but things like harrows too. This may very well prove to become one or your favourite tools for certain jobs. An ingenious idea to convert it to electric rather than fixing what would be a relatively mediocre ICE ATV. Whilst EV/battery technology still has some way to go, this also nicely demonstrates quite how far we have come already. A very enjoyable and fascinating video.
I'm not sure it would have enough torque to pull harrows. Looking at similar hub motors online they appear to have about 350Nm of torque, so 700Nm torque combined. A 12kw tractor will typically output up around 5000Nm at the wheels due to the effect of gearing. So in effect, the motors that Marty is using are great for high speed, but not something like pulling heavy loads. I'm just an armchair critic and you might be more right than I think. I would love to see Marty T test it... :)
@@alskjflaksjdflakjdf On a field, I think you are right, but for tidying up the driveway, perhaps it would be enough. I should have clarified what was in my mind at the time.
@@andrewjones-productions Ah, good point. Thanks for clarifying :)
Wow! Just Wow! You never cease to amaze! Thank You for posting!
With 2 batteries and limiting the output to 30% or even less, one charge will last a bit. Nice machine to have around.
To hell with that. I want to see how it goes when maxed out. But probably not on that narrow track, and definitely not while riding one handed while the other held the camera.
@@TrevorDennis100 I doubt the frame of the ATV is meant for more than the 60kph he already achieved. With his modifications (more like rebuild), he should be careful about pushing the specs as well. We wouldn't want him to get into an accident. On the other hand, limiting the power should help him keep the controllers cooler, especially since he might not install the fans at all.
When the apocalypse comes, I want you on my team.
This series should blow you right through 500,000 subscribers. What an amazing project! The concept is SO cool and a big thanks to the friend who hooked you up with the motors and controller and Big Battery. You've done a lot of very cool projects but this one knocks the cover right off the ball. I think it's because I know your using 30% of the capacity of those motors. I think it would be a good investment to spend some money and buy some appropriate rubber for the back tires. Keep up the great work Marty and for goodness sake - stay safe. All the best from Pennsylvania, USA!
Brilliant video, mate. I'm disabled and I use an electric wheelchair. I'd love to have something as souped up as that quad! 😂 Hope the motor repair isn't too tricky.
Around 22.05 MartyT looked like my 3 year old daughter when I introduced her to her upgraded 36v Barbie atv quad which would do burnouts from a standstill,rolling burnouts,easy donuts dry or wet,do wild enough donuts to sling her off and make her giggle,laugh, scream and shout joyously !😂
cheers from Israel Dear Marty - thanks for letting me 37 minutes of head clearing..
Superb project Marty, great to see the Kiwi can-do attitude in full force on your channel.
I know someone who really enjoyed driving the modified electric quad 😊
Enjoyed seeing you convert the quad
Can't wait to see updates once you get the part
“My brains... are going into my feet!” Rick Moranis as Dark Helmet - also Marty T as himself.
Imagine having a way to use these electric motors in some form of Bull Dozer or even road grader! Beautiful job Marty, ty. Gotta admit I never imagined you pulling something this off the wall off but I'm glad you did. 😮😅
You never cease to amaze us one of the best technical channels on you tube with practical no nonsense projects that you make work well done keep them coming 👍
Great episode!
Hi Marty, I've been watching your videos for a few years now, since my granddaughter moved to NZ ,You do amazing things with every video you do, Don't know what your background was ,but they must miss you where you use to work. I look forward to every post. Thank you for being you. Gord , Ontario Canada
Who would ever have thought you could re-power an old shitter Honda Quad with something like that?
Congrats, Marty - -that thing will be a beast when the new bits arrive,
Way cool to see how this turned out, complete with regenerative braking!
Great job Marty, can only agree with all comments before and probably after me. Can’t wait to see the update. Blessings to you and yours.
You are at least a 3x genius!!! #1: genius to come up with this project. #2: genius working through all the details and problems electrical, electronic and mechanical. #3: genius that all work was performed outside, on a gravel drive with nothing more than a pistol drill, basic mechanic's tool set and a stick welder. What a talented guy!!!
Careful there marty. You,ve built yourself a beast!
What a great project Marty, you made an electric setup look simple when compared to the all those parts from the old petrol engine. You just have to understand the electrical components and how the power system flows. In the states a-lot of schools are having electric vehicles projects and contests and ive found its been making these electric motors much more available. Lots of opportunities for cool projects.
I wish I understood electrical stuff. Petrol and a carb, and I can go full Marty T on it. Add wiringelectrical/computers and well... That is the end of it. Lol.
We call those end cuts drops. Love them ends and drops because they're free.
Very cool project, Marty.
If you make the Mrs. smile, that's a homerun.
I name this magnificent contraption the "CYBERMARTY-1" In your face Musk! Looks both fun and terrifying. I LOVE IT!
😆
I've been driving my electric work van for 6 months now and I'm never going back to combustibles. Just so much more relaxing in every way. Great build.
Its the ones who want to keep their horses, until they come to their senses and catch up to the rest of the modern world.
just amazing ATV, watching you perform your magic is like a breath of fresh air
Damn that thing moves. Nice job Marty. I would be having a look inside the other motor whilst waiting for the new bits because of that funny noise it was making.
you should clip 1:28 and make a tshirt out of it along with your, "...that doesnt actually look bad to me!" because for the majority of us out there im guessing that looked like a bloody nightmare!
😂
Great job. I have converted several gas engines to electric power and am always surprised by the instant torque and noise reduction. Problem is the batteries need to stored in pretty stable temps or their life is limited. The cost of batteries and their life span has always been the problem. Charging, as you have shown, can be overcome/mitigated….
The quietness of electric motors is something else. Much more peaceful ride.
Amazing way to keep that bike out of the scrap heap. Probably gonna want some more aggressive tread on the back tires.
Thanks. As soon as you turned the throttle I could not stop smiling
Me too, I had to cut out lots of giggling like a schoolgirl .. Ive owned a 180hp r1 and many high powered moto x bikes but this thing is somehow more fun 😆
@@MartyT It's hard to beat that "EV grin"! 😁
Another amazing project, Matty. I reckon that would be a fantastic business, converting old quad bikes, for hunters fishesrs and farmers to help them reduce their carbon footprint with the added bonus of stealth mode
This project would have taken me a year to complete (if at all) watching you do it in the length of 1 upload makes me all fuzzy inside. 👍
It took about 6 days
Performance is always more important than emissions. Nice work!
You know how you're not allowed any more tractors tell Mrs T that you are going to make a battery one and judging from her massive grin while riding the _death machine_ you'll be golden with the tractor. 👍👍
What a cool project. At first when I read the title, I thought that this would turn out to be nothing, but your fabrication skills are fantastic with relative simple means.
I'm amaized that you managed to turn that old ATV into a well running fast EV.
Literally the only video on youtube I can find on how to mount these hub motors. Thanks so much for this video!!
Yeah I looked for plans online but couldn't find anything, glad you found it useful
Love watching you fabricate and create in near real time. Great editing.
You Amaze me, What you can do. Your an absolute genius!!!❤❤❤
You never cease to amaze me! What an awesome project and great results. I look forward to being able to buy the DIY kit online soon! 😉
Depending on the cost of everything needed, I think I'd consider a project like this myself. Use it for around the house and power it with a solar charger
Electric quad seems to make a lot of sense and to be honest more low down weight is likely a good thing with those :) great project Marty
Great idea, great talent and imagination. If I were younger and knew the world as we know it was to be ended I would like to be Marty`s neighbor. It never hurts to be survivor prepared.
That guage cluster if it works is useful to someone especially if it is an electric shift motor most of those arent made anymore.
Marty commented earlier that he was going to replace his other quad's gauges with this display (badly faded on the other quad)
Great video Marty, you never disappoint!!! 2 things - Please be careful matey, those speeds on a quad can end in a long hospital stay! & that DC current limiting trip you fitted are known to be unreliable / possible source of fire (check out the issues the self build camper community has had with them), a regular fuse is a much better bet.
The things us fellas will do to impress our ladies... I'm sure Mrs. T knows she hooked an uncommon one. Nice work, mate, truly inspiring!!
Need to find a flat long place and see what the top end is . With full face helmet ⛑️ and a scuff suit . Could be a guinness book of records maker . Might need a speed fairing . Lots of records for motorcycles don’t see any for a quad .
MartyT has posted a video… Drop everything! Great project, thanks for showing it, Marty. Interested to see how this pans out. Thank you. Les in UK 🇬🇧
37 minutes?!?! OKAY!! Here we go!!
Wow 15 kw on a small quad is insane, be careful with that. One of those motors going through the existing diff would have been plenty.
One of those motors would probably run your saw quite well.
Self vulcanising rubber plumbers tape is great for making seals around things like that shielding around the wires, I hope the silicone lasts but will probably leak soon.
Great bush engineering once again.
Very well done. Such a clean build.
To keep the centre of gravity as low as possible couldn't you make a frame to mount the second battery under where the rear carry rack would be?
Other than that the only other suggestion would be to add an AC inverter somewhere. Because basically you have a very portable power supply and it might be handy to be able to operate 240V AC power tools in remote areas. If not permanently mounted then maybe just add an Anderson socket so you could plug in an inverter (or other DC device) and have 240v AC wherever you wanted. You could probably run it directly from one of the battery connectors but that would give a charge imbalance so an Anderson socket at the 80v DC point would be what I would do.
This project is so exciting, can't wait for the parts to arrive!
You make a lot of work look easy but I'm sure it's not all flowers and rainbows.
Well done!
That's an ingenious use of the brake light switch to initiate regenerative braking.
My uncle has an EV Polaris side by side love it so quite and fast
I see the chickens approve of your handiwork. That looks very fun. Nice job.
Either two micro switches or a circular encoder would be great on the steering tube to activate a specific state where when you turn the ATV, the inside drives either disconnect and freewheel or they reduce power (probably the better, but i'm not sure how easy the programming is on that brain box).
Great idea. An electronic differential!
Gotta ditch those ugly white zip ties and use some professional black zip ties :) Better yet would be some adel clamps for that motor wiring, that would look sharp! great little project you have btw. I have a low speed vehicle that was originally electric but was gutted so i'm thinking of using a diesel engine on it, its basically a golf cart that is street legal.
Your ingenuity is top notch. How the heck do yo know how to do all this stuff? This videos are like someone practicing witchcraft!
Marty, I dare say you'd make MacGuyver blush with your ingenuity. Impressed as always.
Awesome project Marty. Brilliant work as always. Cheers to bigbattery for bringing the power.
Wow Marty what a cool build, I never would’ve imagined it possible. Looking forward to seeing the next video on it.
Marty, once again you have brought us an extremely interesting and enjoyable project. You, sir, are a treasure!
If it’s anything like my electric skateboard. It’s a Hall Effect sensor problem. On my skateboard, I just unplugged the sensors and everything worked. However, it then only had two modes... Off and mental.
Edit: Aaand I just watched the end of the video. Yup. Hall sensor. I’m a total noob at that stuff but it’s amazing how quickly you can pick up the basics and start building. I hope this fantastic video inspires others to do the same.
With only using a fraction of the available power, and those adjustable torque settings, I'll be really keen to see what it can pull when you have it all back together and you're doing your testing. Hope you're considering knobblies for the back!
Wow Marty! You are a really gifted mechanic and electrician…I am always impressed.
A quick thought/suggestion for you: It looked like those controllers could be set up to take a speed target instead of a torque target. Are you familiar with the concept of single pedal driving that's getting popular with EVs? The major benefit is that it allows for modulated regen breaking instead of just banging on some % braking force, and allows the regen braking to be fully independent of the friction brakes so that you recapture as much energy as possible before you ever need to touch the regular brakes. If I were to guess I imagine having the throttle input set a speed target instead of a torque target, with a reasonable torque limit, would get you the same benefits here.
Good job Marty. I put an electric motor in my 3yo daughters 50cc quad about 12 years ago, a much simpler build than this one, a 24v 500W motor & chain drive to original shaft, 36v controller & 3 x 12v 14A batteries, it did about 25km/hr & the kids all loved it.
Love ur stuff & cant wait to see what you delight us with next. Cheers
It's videos like this that make me crazy jealous of the wealth of information you have stored in your head. At the beginning, looking at that box of parts, I would have been totally overwhelmed and never started a project like this. You make it look so simple and matter-of-fact, but there's an extreme level of expertise behind everything you do. I wish I could just hang around the farm and absorb 1% of your skills and knowledge!
18:45 Learned this in the hard way as my Campers waterpump did not have that kind of diode and it is controlled by canbus type system and that lead eventually destroying my waterpump node. Now got a new one and pump with diode. This was actually a designers fault but they find it about 10 years time as those nodes suddenly broke in many campers!
Absolutely Brilliant!
You have created a silk purse from a sows ear.
Looking forward to the repaired silent monster.
Would you ever take it on a paved road to see what the top end could be?
Thanks for sharing.
Yes I might sneak it down to the abandoned highway for a speed test run