Excellent video. Most DIY videos I fast forward through and stop pictures to look at. You're such an excellent craftsman and so innovative that I watched all for workmanship, construction techniques, and ideas on how you did it as well as how to do a video properly. I hadn't even thought of using skateboard wheels as drivers. Thank you.
this is very nice, quite a large brushless motor. For such a nice product 270 pounds is a really good price. But i must say using the friction drive on the tire is a better way of doing it if the tire is a road tire.
Really interesting build dude, again thanks for posting. The wind noise you mention can usually be cut out by taping or placing some foam over the mic input. As for the wobbly footage, wearing a head cam would negate most of it. I have only tried this on the Mobius and sj4000 but it seems to do the trick while still catching audio. The only other way would be to use a vibration isolated 2 axis brushless gimbal. They can be had for £35 on ebay and actually do work great on a basic multirotor but no idea if it would handle this more robust job.
That was originally the plan. The top of the 3 bars on each arm was going to hold a brake cable to pull the wheels apart. But with the amount of spring tension I eventually needed, I didn't think a brake cable would compete. I might still add a threaded bar or something to allow for that, but the real resistance to pedaling is just how heavy the bike is. It was fairly heavy to begin with since the previous owner put some chunky front shocks on. Although in that instance I mostly pushed it home because, er, my pants shrunk when they got wet... With these 2 lipo batteries I have a theoretical 10 mile range, but i'd say its more like 6-8 at the minute. Still haven't had a chance to run the batteries entirely flat though. I'll probably buy another pair of batteries so I can ride it up to my grandparents without having to cut it close. But with the current space available I could probably get the range to 60 miles, although there's no way I could afford that amount of batteries!
Simon Heslop Ah, right. Best laid plans and all that. Know how that goes. Thanks for the info on the range. I find that kind of distance pretty impressive given the size of the batteries.
Harley Pebley I am too, to be honest! Lipos are amazing. The RC cars I had as a kid took hours to charge the NiCds and then they'd run flat in 5 minutes. I'm equally impressed by the size of the motor and speed controller, considering it can pull the bulk of me and the bike along. I was expecting I might have to double the motors up, and put a second one on the other side.
Hi, That was the most informative and entertaining ebike build i have seen, I was wondering wether you could specify where exactly you bought the esc from, thanks :)
Alfie Smith Thanks! I just bought the esc from ebay. I'm not sure if this is the same seller, but it looks like the same item. www.ebay.co.uk/itm/RC-Model-Airplane-Helicopter-100A-Brushless-Motor-Speed-Controller-ESC-SL019-/252015641234?hash=item3aad4d8292
Thanks alot! Ive been wondering because the battery i have has three cables coming out of it and so does my motor, what would i do with the third cable from the battery, Thanks for the help and I subscribed!
Alfie Smith Honestly, I don't really know. The motor has three cables that connect to the esc, since the esc (as far as I know) makes a kind of three-phase current. But on the battery end i've never heard of that, not with LiPos at least. If they are LiPos i'd recommend reading up till you feel like you know what you're doing since they tend to explode if you do something like short them out or incorrectly charge them.
Alfie Smith I think they still risk catching fire. What makes battery fires particularly scary is that they're difficult to extinguish since they react violently with water. Like I said though, i'm really not that much of an expert and i'd recommend reading up on stuff yourself rather than trusting me, an idiot.
I can't find the model number of the motor. It was a while ago that I bought it. It was a fairly generic thing though so it might not even be for sale under the same name any more. I was considering a chain drive at first. I think the big thing that put me off was that the motor spins so fast it'd need a big reduction, and turning the rim by rollers got rid of that issue. The other thing is that while the motor would probably handle a heavy load when starting it, I don't think the cheap speed controller would. The rollers acted like a clutch and could slip when the bike came up to speed. But really there were already people who've done that successfully and I wanted to try something unusual.
Wow, quite the involved build. Cool experiments!
cool
1000 likes for me
Excellent video. Most DIY videos I fast forward through and stop pictures to look at. You're such an excellent craftsman and so innovative that I watched all for workmanship, construction techniques, and ideas on how you did it as well as how to do a video properly. I hadn't even thought of using skateboard wheels as drivers. Thank you.
I like your well-equipped workshop, and you sure know how to use the different Tools. Very nice work.
Awesome build! I like how you documented everything and left in your mistakes, etc.
the best 12 minutes 41 i have spent today. great video
this is very nice, quite a large brushless motor. For such a nice product 270 pounds is a really good price. But i must say using the friction drive on the tire is a better way of doing it if the tire is a road tire.
Your vids are great! Had a blast watching.
Really interesting build dude, again thanks for posting. The wind noise you mention can usually be cut out by taping or placing some foam over the mic input. As for the wobbly footage, wearing a head cam would negate most of it. I have only tried this on the Mobius and sj4000 but it seems to do the trick while still catching audio.
The only other way would be to use a vibration isolated 2 axis brushless gimbal. They can be had for £35 on ebay and actually do work great on a basic multirotor but no idea if it would handle this more robust job.
Excellent build. Fun too.
That's a heavy crude design, there are much simpler lighter designs you could go with
Very good video and build, I enjoyed it!
Great job, you are a handyman, enjoyed a lot
Nice work Simon, really enjoyed your video :-)
Cool build.
Make a quick release for the springs, so if you run out of battery, you can still pedal home.
What kind of range do you have?
That was originally the plan. The top of the 3 bars on each arm was going to hold a brake cable to pull the wheels apart. But with the amount of spring tension I eventually needed, I didn't think a brake cable would compete. I might still add a threaded bar or something to allow for that, but the real resistance to pedaling is just how heavy the bike is. It was fairly heavy to begin with since the previous owner put some chunky front shocks on.
Although in that instance I mostly pushed it home because, er, my pants shrunk when they got wet...
With these 2 lipo batteries I have a theoretical 10 mile range, but i'd say its more like 6-8 at the minute. Still haven't had a chance to run the batteries entirely flat though. I'll probably buy another pair of batteries so I can ride it up to my grandparents without having to cut it close. But with the current space available I could probably get the range to 60 miles, although there's no way I could afford that amount of batteries!
Simon Heslop Ah, right. Best laid plans and all that. Know how that goes. Thanks for the info on the range. I find that kind of distance pretty impressive given the size of the batteries.
Harley Pebley
I am too, to be honest! Lipos are amazing. The RC cars I had as a kid took hours to charge the NiCds and then they'd run flat in 5 minutes. I'm equally impressed by the size of the motor and speed controller, considering it can pull the bulk of me and the bike along. I was expecting I might have to double the motors up, and put a second one on the other side.
I like your videos:) You should make them more often!
For the wind noise put a piece of a scotch brite pad over your mic and that will work very well
The ESC could easily be waterproofed inside the box too.
Hi, That was the most informative and entertaining ebike build i have seen, I was wondering wether you could specify where exactly you bought the esc from, thanks :)
Alfie Smith Thanks!
I just bought the esc from ebay. I'm not sure if this is the same seller, but it looks like the same item.
www.ebay.co.uk/itm/RC-Model-Airplane-Helicopter-100A-Brushless-Motor-Speed-Controller-ESC-SL019-/252015641234?hash=item3aad4d8292
Thanks alot! Ive been wondering because the battery i have has three cables coming out of it and so does my motor, what would i do with the third cable from the battery, Thanks for the help and I subscribed!
Alfie Smith Honestly, I don't really know. The motor has three cables that connect to the esc, since the esc (as far as I know) makes a kind of three-phase current. But on the battery end i've never heard of that, not with LiPos at least. If they are LiPos i'd recommend reading up till you feel like you know what you're doing since they tend to explode if you do something like short them out or incorrectly charge them.
Simon Heslop Its a li-on so it shouldnt explode, should it?
Alfie Smith I think they still risk catching fire. What makes battery fires particularly scary is that they're difficult to extinguish since they react violently with water. Like I said though, i'm really not that much of an expert and i'd recommend reading up on stuff yourself rather than trusting me, an idiot.
Why do not varnishing
the beautiful box?
Great build!
What is the make and model number of your motor ? Just be nice to know. You should change it to a chain drive it would be better.
I can't find the model number of the motor. It was a while ago that I bought it. It was a fairly generic thing though so it might not even be for sale under the same name any more.
I was considering a chain drive at first. I think the big thing that put me off was that the motor spins so fast it'd need a big reduction, and turning the rim by rollers got rid of that issue. The other thing is that while the motor would probably handle a heavy load when starting it, I don't think the cheap speed controller would. The rollers acted like a clutch and could slip when the bike came up to speed.
But really there were already people who've done that successfully and I wanted to try something unusual.
interesting experiment , tnx for sharing Simon :)
so I need 10 years in college and a machinist degree to build this and it lasted 1 trip, cool
Might've lasted 2 if it didn't get wet
Hey si, prevent the wobble by riding on flat roads, pro tip from your cousin.
Nice job.
But speed is less than 15MPH.isn't it
You should make the wheel that isn`t powered a generator to charge up another battery so you can keep going for longer
great video
Pěkně sdokumentováno😉
good job, needs more power desperately
Hope you can make more videos
Cool but the hub motors are much easier to build or buy for 150... Whole kit bruh
oh my god i don't won't make this kind of bike
oh how gnaws the envy
Aap phone number de do
this whole project is over built and rediculous
Yeah. Too much effort for inefficient friction drive setup