GNG, 1000W 48V BB-drive, $400
- Thread starter spinningmagnets
- Start date
Secret1511
100 W
Is this something?
http://www.eped.nl/steponderdelen/stepmotor-1700watt.html
http://www.eped.nl/steponderdelen/stepmotor-1700watt.html
Denisesewa
100 W
Secret1511 said:
Thats a brushed motor, I used one in my first electric build years ago ,
If you look around you should be able to find that motor for about half that price.
BTW , if you try to pull more than about 1500 watts out of that motor it will run hot , its actually rated at 1000 watts at 36 volts if I remember right, mine was an "MY1200" which they discontinued and I ran it at 48 volts.
Secret1511
100 W
Denisesewa said:Secret1511 said:
Thats a brushed motor, I used one in my first electric build years ago ,
If you look around you should be able to find that motor for about half that price.
BTW , if you try to pull more than about 1500 watts out of that motor it will run hot , its actually rated at 1000 watts at 36 volts if I remember right, mine was an "MY1200" which they discontinued and I ran it at 48 volts.
Ok it's crap
Lokking for some stuff to start a new buildOne of the serpentine bearings seized and broke my belt. Has anyone else had this happen? I tried to source some high quality one a while ago but could not find a direct replacement. It has an odd outside diameter of 17mm. Any ideas?
Denisesewa
100 W
PM me your address and I can send you a set, they are the stock ones but will get you by untill you can find some quality bearings.scrone said:
"D"
crossbreak
1 MW
spinningmagnets said:
the lightning rods config just uses the left side of the shaft. torque and rpm is the same for both...or did I miss something here?
--freeride--
100 W
- Joined
- Jul 5, 2011
- Messages
- 237
crossbreak said:
Right, but you can spinn faster as the reduction on the secondary side is higher
robobike
1 µW
ferret said:
The wheels on the secondary side are nylon hubs from 2 inch wheels I had around, I just popped the rubber tyre off and used the hubs, These hubs are meant to act as a bush. They where purchased form a wheel and caster shop.
The spacers I used on the first reduction where found on an old suspension bike, these are the white spacers/washers between the linkages of the rear suspension.
They are just a little bit bigger than the original bearings.
LightningRods
1 MW
I completed my production molds and poured my first 25mm wide GT2 pulley set. My hours and hours of obsessing over the CAD model paid off. Everything fits and lines up perfectly. There are about 1,000 ways to do this wrong and I think I found 999 of them.
I'm excited to get these on my bike and see how they perform!
I'm excited to get these on my bike and see how they perform!
spinningmagnets
100 TW
Lookin' good, just like it should! well done, sir...WELL DONE!
LightningRods
1 MW
heathyoung
100 kW
Looking great - I'll be up for a set, especially if they come with a belt or two...
gknowes
10 mW
The light at the of the tunnel . Looks like all your hard work is coming together, nice!!! I received your 18t driver, fits like a glove over the 14t driver. No test run yet, but this should be a big improvement THANK YOU.
LightningRods
1 MW
Thanks guys! I feel like a proud new father. I'm excited, and nervous, to see how my 'baby' performs out in the real world.
I ordered some black pigment that I can use to tint the plastic during casting. The plastic company says in their literature that paint is good protection from UV so I may follow up the embedded pigment with a coat of satin black on everything but the teeth.
If the Gates distributor is open today I'll be heading over his way to see how much the 25mm x 535mm GT2 belt we need costs and what I have to do to get them in stock. I'll ship as many belts as people need. I personally would not order more than two because they should have a long service life. If my pulley design allows these belts to live up to the claims by Gates we are all going to be very happy. The road will tell the story.
For US Forum members I'll direct you to BikeMotive for the ACS freewheels and Sick Bike Parts for the White Industries freewheels. For my international friends I'll source the freewheel of your choice here in the US if you like and ship with your other parts.
The final piece to this puzzle is fitting the large pulley to the jackshaft. The GNG kit uses a 1.375" freewheel thread to 12 mm keyed shaft adapter made of steel. On my particular kit this adapter will thread into Chinese freewheels but not my ACS. My opinion is that this adapter has a metric thread pitch, others feel that this is just GNG 'quality control' at work. Because I will need them for my own kits regardless I'm having new adapters machined that will have the same 24 tpi thread that the ACS and W-I have. You will have your choice of adapters with or without freewheel.
If there is a Forum member willing to work with me and send me their 60v chain drive parts to work from I will pay for postage in both directions and provide them with a complete belt drive at no cost in return. If this drive works as well as I expect I want to make it available to everyone who wants it. It sounds like the new chain drive is a bit on the noisy side. Surprise, surprise.
I ordered some black pigment that I can use to tint the plastic during casting. The plastic company says in their literature that paint is good protection from UV so I may follow up the embedded pigment with a coat of satin black on everything but the teeth.
If the Gates distributor is open today I'll be heading over his way to see how much the 25mm x 535mm GT2 belt we need costs and what I have to do to get them in stock. I'll ship as many belts as people need. I personally would not order more than two because they should have a long service life. If my pulley design allows these belts to live up to the claims by Gates we are all going to be very happy. The road will tell the story.
For US Forum members I'll direct you to BikeMotive for the ACS freewheels and Sick Bike Parts for the White Industries freewheels. For my international friends I'll source the freewheel of your choice here in the US if you like and ship with your other parts.
The final piece to this puzzle is fitting the large pulley to the jackshaft. The GNG kit uses a 1.375" freewheel thread to 12 mm keyed shaft adapter made of steel. On my particular kit this adapter will thread into Chinese freewheels but not my ACS. My opinion is that this adapter has a metric thread pitch, others feel that this is just GNG 'quality control' at work. Because I will need them for my own kits regardless I'm having new adapters machined that will have the same 24 tpi thread that the ACS and W-I have. You will have your choice of adapters with or without freewheel.
If there is a Forum member willing to work with me and send me their 60v chain drive parts to work from I will pay for postage in both directions and provide them with a complete belt drive at no cost in return. If this drive works as well as I expect I want to make it available to everyone who wants it. It sounds like the new chain drive is a bit on the noisy side. Surprise, surprise.
Wishes
1 kW
1KW said:
The way he spec'd his belt alternative, it will be just as solid as the 60V chain drive. Besides, the new chain drive primary sucks horribly. Its loud, clonky, ratios are horrible, and the chain doesn't really fit properly on the sprockets. I had to replace mine with #25 sprockets and chain.
Wishes
skyungjae
10 kW
Man, it would be awesome if GNG Jon would sell parts of his kits. I wouldn't mind buying a sealed jackshaft and solid 13T sprocket and jump on this wider pulley kit.
LightningRods
1 MW
Here are renderings of the two freewheel adapter options I'm going to offer:
The No Freewheel version bolts the driven pulley directly to the 12mm jackshaft. Another benefit of these adapters for you chain drive lovers is that both of them are compatible with my #219 adapter plate meant for the BB freewheel. So you'll be able to swap in a good quality 219 kart chain in any tooth count from 64 teeth to 93 teeth. Get a good Japanese 219 chain and you might have something. I'd still replace that 11 tooth driver Jon used.
This belt drive should be way over-engineered for this motor. 20 horsepower racing karts use belts like this as do Matt Schumacher's high end Astro Flight drives putting out 10kw. I think a properly designed 15mm GT2 drive would have been enough for the small GNG motor. After all of the grief everyone has gone through with GNG's horribly designed belt drive I wanted to make sure.
I can't match Jon's made-in-China prices but I will be offering a jackshaft with billet housing.
The No Freewheel version bolts the driven pulley directly to the 12mm jackshaft. Another benefit of these adapters for you chain drive lovers is that both of them are compatible with my #219 adapter plate meant for the BB freewheel. So you'll be able to swap in a good quality 219 kart chain in any tooth count from 64 teeth to 93 teeth. Get a good Japanese 219 chain and you might have something. I'd still replace that 11 tooth driver Jon used.
This belt drive should be way over-engineered for this motor. 20 horsepower racing karts use belts like this as do Matt Schumacher's high end Astro Flight drives putting out 10kw. I think a properly designed 15mm GT2 drive would have been enough for the small GNG motor. After all of the grief everyone has gone through with GNG's horribly designed belt drive I wanted to make sure.
I can't match Jon's made-in-China prices but I will be offering a jackshaft with billet housing.
LightningRods
1 MW
I have someone to help me with the 60v chain drive parts. Thanks!
Denisesewa
100 W
A bit off the current topic but --
I've been building a camper trailer ( Including the frame) for the past two weeks and needed some relief from burnout on that project, so , this morning I pulled out my Maverick ML7 , its the only full suspension bike I have , and started building it up , got it to the running stage and had a good test ride , mocked up the battery box ( jury is still out on the looks of it) and am now pondering how to secure the motor, this is a floating BB bike and there is a spud on the BB shell which I can use to secure a torque arm.
Anyone else build a GNG using a floating BB frame ? I looked through the builds and didnt see any , so, I do have an Idea but always like to hear how others handle things.
Here is where I'm at after about 3 hours >>
I've been building a camper trailer ( Including the frame) for the past two weeks and needed some relief from burnout on that project, so , this morning I pulled out my Maverick ML7 , its the only full suspension bike I have , and started building it up , got it to the running stage and had a good test ride , mocked up the battery box ( jury is still out on the looks of it) and am now pondering how to secure the motor, this is a floating BB bike and there is a spud on the BB shell which I can use to secure a torque arm.
Anyone else build a GNG using a floating BB frame ? I looked through the builds and didnt see any , so, I do have an Idea but always like to hear how others handle things.
Here is where I'm at after about 3 hours >>
comradegerry
100 W
Great work Lightning Rods, the kit you are offering looks like it will rock.
Now, who was it that said "you can't make a silk purse out of a sow's ear" ?
An ancient expression that I believe you have just proved wrong.
Looking forward to seeing the real world tests; this has just moved from "want" to "need" on my wish list!
Now, who was it that said "you can't make a silk purse out of a sow's ear" ?
An ancient expression that I believe you have just proved wrong.
Looking forward to seeing the real world tests; this has just moved from "want" to "need" on my wish list!
Whiplash
1 MW
- Joined
- May 10, 2010
- Messages
- 2,906
Hey mike just to get on the list, I have two buyers for the whole treatment with the new belt etc. Sheets, belt, pulleys, etc. They both want to run their kits at 2000+ watts do you see a problem with this at 12s LiPo? The sooner the better! Cash burning holes in their pockets!
I finished my younger brothers bike and he used a Lyen 9 fet pulling peaks of over 2500 watts only as a test with the stock parts and they were sold! Lol that little motor has got balls! Lol!
I finished my younger brothers bike and he used a Lyen 9 fet pulling peaks of over 2500 watts only as a test with the stock parts and they were sold! Lol that little motor has got balls! Lol!
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