What an absolute beautiful peace of engineering this bike is! You seem to (e)Bee more of an mechanical engineer / machinist than an electrical engineer tough... Stunning never the less 😉
@@paulbrodie That you like to make stuff has become very clear in your videos. 😉You just seam immersed in what you do and that is awesome. Also you seem to be more than busy replying to all the comments. That is extremally rare - especially with you follower count. You don't have to do all this but its very nice and shows how much you care... 👍 And electricity and computers and stuff are finnicky, I know that far to well. I was also a "mechanical hobbyist" (if you will) first but slowly I begin to get along with Arduinos and electric hardware stuff. I can not believe that I hadn't found your channel until today but I am very happy to know it now. Keep it up, greetings from Germany
Thanks for sharing your excellent build and even your mistakes. When I see your videos I feel you don't hide anything and as an amateur builder I appreciate it a lot.
Great story Paul, good to see such an awesome bike back together. Im sure you'll work the bugs out soon. I was so excited to see the photo of your belt sander in the Brodie book, I have already started building my own based off the one pic.
im literaly doing an identical project, but i have run into major money issues, every thing is figured out and ready to start fabing it up, just money is an issue. tho my design uses an EUC motor due to how slim they are (80-70mm wide) so they are PERFECT to run on standard bicycles with a narrow 68mm BB. besides money the other issue (that i have many solution for but all are pricey) is mounting a sprocket to the motor side plate :p but yeah my design pretty much is a fit in every bike solution as long as the triangle is large enough, but even then if its not, cut out the bottom tube and a slap in two new bottom tubes and have the motor sit between them. as for the how to connect the motor chain to the rear wheel? this is the neat part, trails cranks, slap on a freewheel that can mount 2 104bcd sprockets, and you dont need any tensioners for the motor chain, and when using a full suspension BMX, or a slopestyle bike you dont even need a rear tensioner for the chain either since those bikes pivot exactly around the cranks chainrings. so my current project pretty much is a full suspension steel bmx bike. hub to mid conversion as said above (with the motor being able to push 8kw peak at around 400nm torque at the gearing id wanna set) single speed ofc (i thought about belt but chain is just nicer but only bmx chain is strong enough, but is more effient than moto chain :D ) with a easy swapable 72-140v ish batery around 50ah to keep the amps down thus having more eficiency and bigger throtle curve electronics wise. and since this is a OP build, the rear suspension will be ultra stiff with a lockout. the front suspension will literaly be double deck DH fork the inverted kind with a boost hub setup of 20x110mm (working on a front peg mount mechanism there too) the rear on 14x110 (might go rear 20x110mm too if i can find a strong enough hub) with stunt pegs that can take the weight of a full pasanger. front 250mm surron disc brakes x2 due to a special hub with quad piston calipers rear 250mm single with quad piston. and other gimmicks etc. guess the main dif in my build is its more of an ultra strong endurance beast in a small formfactor. and retrofitting as much existing parts as possible to keep the price and complexity down. and ngl kinda like how you made that hub to mid conversion, a french dude i know is building a very sumilar design but he replaced the motors core where the axle is with a custom machined one and custom sideplates too :) wish i had a workshop like you then my project would probs be cheaper to create and easier
Yes, you have a Project on your hands! It does take money to make things happen, and having a shop is very handy too. The danger, I think, is taking on more than you can comfortably handle, and then getting discouraged, or stalling out... I have done both in my younger years. So, my advice is to take on what you can handle, and maybe a little more... Be realistic, do a little very day to keep moving forward, and never give up! Thanks for commenting...
@@paulbrodie I never give up honestly, most of the time I get forced to quit or stop due to money issues, if it weren’t for that could spend 95% of my awake time on building stuff it just comes that easy to me, now days though I spend less time building more time trying to find the best deals on parts like I literally spent 3 hours the other day just looking at at a new ratchet, and when im not looking for deals I’m searching for other similar parts to wich I need so I can modify them to fit my use case, maybe lowkey insanity when you live in a world where it’s cheaper to take a kitchen spoon and flatten it to file it into a special distancing tool so I can rivet two plates together and slide out the tool leaving just enough space to affix elastic wire netting than to find a dedicated tool for that 🤣 Or instead of having pre made chainrings that are narrow wide for Bmx chain I have to use 420 chain moto sprockets and shave and shape them down by hand cause they just don’t exist 😅
Wow, thats the craziest looking E-bike. What I mean is, eBee is gorgeous! I love the design. You did a fantastic job with the bike and telling eBee's story. Thanks, Paul.
I would love you to meet a man called Allen Millyard, you possibly may have heard of him Mr Brodie, he built his son a downhill bike with internal gears and no derailleur and also some fantastic motorbikes You’re both an inspiration to a great many
You Sir. Are a master craftsman. I just stumbled across your channel recently and in Awww at your skills, My Mind Is Blown. Love your channel. Best Wishes, Martin.
This was inspiring to watch. LiPo are not ideal for ebikes. I had the exact same results with LiPo. I went to charge the bike while eating dinner and came out to a garage full of smoke. Thank God it was leaned up against the welding table. I build my own bikes and build custom lithium packs as a side job. I would have loved to help out with the wiring on this bike. Grin is an amazing guy to deal with and one of the pioneers of ebikes.
Thank you Ryan. Yes, eBee was a big learning curve for me. I do have to get back to that bike and figure out the programming so that it doesn't reset overnight.
Paul you are an absolute artist. I've just found your channel and I am ever more impressed with what you have created! this bike is not nice its absolutely beautiful and I hope when in 2000 years later humans rediscover youtube the actual peace will be preserved free from entropy, I hope you will get it working! maybe best would be just wire throttle directly make it simple to run! cheers and look forward to see your latest creations!
This is a work of art. For designing fairings or plugs a method that really works is to use rigid foam insulation. The high density stuff like “pink panther”brand glue sheets together to make a block. Then use a hot wire cutter to sculpt the shape as required. Wire cutters are excellent because you can “kink” the wire to carve deep recesses etc. (And I’m sure you could make a hot wire cutter with a guitar string) Modelling foam is also good as it comes in blocks but expensive. The house insulation is plenty good.then fibre glass it and gel coat and sand and paint etc. Hope that’s of help!
You're wiring diagram at 19:46 shows only two wires going to the motor, if I read it correctly. That implies it's a DC brushed motor. Not good. I think you should use a three-phase variable frequency AC motor. These are common in drones, Tesla, elevators, factory machines, etc. There's a whole technology around them including the inverters. Very efficient and reliable. A DC brush motor is not going to be easy to control at all. Three phase AC offers huge starting torque and extremely precise RPM control, like for an elevator or a Tesla. Brushed DC is the very opposite, pretty terrible. I would hope that some viewers who have experience with this technology could offer comments. eBee is absolutely gorgeous!
I will have to check into that. I know a lot has changed in the 9 years since eBee was built. I am the first to admit that electrics is not my strong suit. Thanks JohnE.
Why don’t you just use a sprague on your Jack shaft or a free wheel sprocket so your drivetrain will coast without transmitting power back into the motor. If your motor is set up to charge your battery under deceleration design a sprague that will transmit power back to the motor controlled by the brake either mechanically integrated into a brake lever or electrically by way of a normally open electrical switch integrated into a brake lever.? Just an idea that might be a possibility for you. You might be able to use a 12 volt automotive magnetic A/C compressor clutch to control power flow.
Happy and healthy new year to you. A great concept. LOVE the Spaceframe design, Big motor, low battery COG... nice platform! Full suspension probably much more effort to achieve a good tuned suspended system. The intention to have it was kind of visible on the first sight. Perfect colour finish, darker red little bit more elegant for some reason. Paul can you recommed a book on materials for (bike) technical applications, in order to know why e.g. one would choose 7075 for the sprocket for this project or or in other cases combinations of materials? Maybe you choose these from experience. Thanks.
Happy New Year to you as well :) I have a pretty good library, but most of the technical reading is focussed on motorcycles. I have a few books on bicycle frame building, but they won't tell you which aluminum is better for a sprocket. I just know from experience that 7075 is harder and more durable than 6061. I have books on motorcycle engine development, chassis design, suspension design, metallurgy, heat treating, machine shop practice, and much more. So, it's hard for me to recommend a book to you that relates to bicycles and encapsulates all that. I would suggest just start reading anything that relates to metal and fabrication... Good luck!
All batteries including lithium batteries will slowly self discharge over the course of several months. Also, most types of Lithium batteries will internally degrate faster than standard if left fully charged or fully depleted for many months. Lithium batteries generally prefer to be stored at 50% charge if storing long term (1+ months) and they can lose a good amount of charge if left for 3 months or more so it is generally good to check them every 2-3 months or so and charge them back to 50-70% before leaving them long term again. Some Lithium batteries can go into a low voltage "sleep" state if you leave them for too long. It takes a special charging method to get them out of this state without damaging the battery. Many chargers do not have this special charging mode and just assume the battery is above the "sleep state" voltage. Your battery manufacturer can recommend the best storage methods for your particular battery. Different chemistry types of lithium batteries have somewhat different charging, discharging, and storage reccomendations. Interestingly some lithium battery chemistry types can have a roofing nail driven through them and not catch fire. Others will instantly burst into flames.
@@paulbrodie Yeah, it took 1 Million subscribers to actually show his face, for the first time, waaay back in 2017! Here he is, starting at the 00:29 mark: th-cam.com/video/vJIzkIc_wIU/w-d-xo.html
I am so impressed that you documented the process before social media and TH-cam! Sad that it caught fire but at least no one was hurt and you were not riding it at the time. What did the school say when they heard your bike caught fire? :)
Well, there was a fire, so the Fire Dept got called, the University Safety Steward came, The Dean, in all there was 8-9 important people standing around talking, discussing, but there was nothing to do really, because the fire was already extinguished and it was only my bike that got damaged. So after some discussion, everyone left.
6061 for sure. Some 7000 series frames just have to be left and they artificially age on their own, depending on what kind of 7000 series the aluminum is.
This is just beautiful people usually say I made a ebike and they are like I’ll just buy a frame and put a rear motor and they are done but u sir go 10 steps further u make a real custom made bike.. I would love to see you make a super73 style bike with maybe a bafang mid drive motor anyways thank you very much for these beautiful videos
As i suspected when you said your original batteriy were Li-ion and then mentioned the fire that they were in fact Li-poly witch proved to be the case in the last segment. The latter are pretty well known for their volitility from their years of use in the RC world but in '12 if you wanted performance they were higher output than the NiMh/LiFePo4 that eBikes of that era used and in fact some still used SLA batteries such as the Currie models. Luckily time and technology moved on and you are now using Li-Ion or perhaps Li-Mn both of which due to their stability resulting from the use of a Baterry Management Systeim (BMS) which will cut off drain at a voltage that doesn't cause issues, hopefully. Still have to be cautious however and my advice would be while storiing eBee to try and keep it at around 50-60% of charge so that it doesn't go to the LVC and below which can happen over time. It may not result in fire as last time but you will brick the battery. I use Grin components and I do admit that at times they can be a struggle to get on the right path to consistent performance and the one thing I would suggest is to add a throttle to the mix as it would help to get the system up to speed where the torque sensor can carry on? Should be very easy to do using a CA3 as all mine do. Once again thanks for sharing your knowledge!
The Canadian Electrical Code, Section 12. Wiring Methods...and there might be something if interest for a renowned Conductor of Bicycles. This is the section that covers conduit and the conductors that fill them in a percentage of area. 40% is cool enough for anything from blacktop to muck. The Technical Safety Branch BC was always my favourite place for getting one off prototypes certified...not that any of this is relevant. I just felt like doing something other than waiting to be let out of doors again. I grabbed a very early fillet brazed Romax for going up and was traded an 8 Ball for down and they both have worn through their share of rubber. Always interesting stopping by, thank you sir.
@@paulbrodie Yes, I still have both of them. My Romax has remained mint through sheer luck and my 8 Ball remains solid with a few cosmetic battle scars. They're like family.
I don't know much but have you tried putting a smaller sprocket by the crank ive been watching these u tube videos to figure out what I want to build and I think I heard someone saying they had the same problem and by gearing the sprocket down by the crank it helped
Im watching your video again love watching them I get what you mean now about the software issue. I got my bike now and I was having the same issue I would program the sw900 and when I shut it off I would go back to the same settings as before I watched a video about some kid setting his up and I needed to save the settings I have an app called MQCON and I can set on there but I pretty sure without the app you need to hold the up down button together for a few seconds or the off button for a few seconds
@@paulbrodie The setting will be stored in some kind of nvram (non volatile random access memory), most probably an E prom. These are magnetic storage mediums, so they don't play nice with magnets. The changes are often stored in ram, so if it loses power for any reason all the setting will default too. This can be because it's using a rechargeable battery that's run flat due to not being used for so long, or just a normal battery that's dead.
Brilliant bit of work as usual but I think you were too early into the game and the available components at the time were scant. I was just reading that the Roloff cant be shifted under power or with the cranks turning so inspite of its superb design ... I think you should do EBee2 but with a Bafang M260 midrive with the Ludicrous controller and a 52 V Shark Battery pack. That would be around 2.5KW @ 160NM. My 2KW Cyclone motor will do 40MPH with a fully charged 48V pack and is more fun than a barrel of monkeys on the trails. Thanks for the vid👍👍
@@paulbrodie Oh I apologize, I was just offering my opinion. You make TH-cam videos, I just watch them, so you would know more than I. Thanks for the for the great content.
Thanks. You are asking a question about a subject that doesn't have a simple answer. You know there are technical machinist books out there on cutting gears and sprockets, right? Machinery's Handbook comes to mind, and you could probably pickup a used copy and save some $. Nobody taught me, I did not read a book or take a course. I got a sprocket and started looking at it. Trying to figure out how to hold an aluminum disc, and then how to cut the teeth. That was 9 years ago. I can't remember exactly how I did it. If I made another one tomorrow, I would go through the same process all over again. Being a problem solver is a big part of being a good machinist. The mind is always working. How can I do this better? Faster? Hope this helps.
@@paulbrodie Thank you. Yes, I have a machinery's handbook, but the sprocket tooth has so many curved features, and yours looks "simplified" for production with a "simple" machine with cross slides. There is, of course, many ways to skin a cat.
Think simple my friend ,Think of like a dimmer switch to power the motor instead of a computer program .That way you decide the power level you put out.
Have you look up Grim Technology on TH-cam they have allot videos up I watched a video there's it seems helpful I hope this helps I would love to see EBEE Gooooooo love everything you do on your TH-cam videos thanks so much
If you will use mid motor Bafang, you will have place for full suspension! and battery will full fit above motor. Now it's too complex, unnecessary complex and bulky on bottom. endless-sphere.com/forums/viewtopic.php?t=95899
@@paulbrodie - How do they hold up w/ that slotted design and the Allen heads holding it¿? That looks like a potential weakness and I don't understand how it works.... 😔
A lot of these bikes are built for what they look like. They're neat to look at but are heavy and expensive. Good bike frame designs look boring because they're meant to be light and strong enough, so they're structurally 'minimalist'. Not much to look at.
im glad the EBee fire didnt take your shop with it. I love the ducati influenced frame. I built a 71 SL350 k2 and painted it a similar color. Used a honda red and mixed black in till i like the shade.
It must be bugging him to have spent all that time on a very expensive sculpture :( Should do a collab with one of TH-cam's ebike expert to fix the bugs.
I don't typically like ebikes.... This one looks fantastic, would love to own one. That frame makes me thing Ducati. oooops, should have watched longer, then I heard you say Ducati was an influence. Sorry :-)
That's a lot of chain, LOL! trellis frame is cool like older Ducs. I am getting a welder again after watching your vids, :) th-cam.com/video/3Ep3Bag7QaM/w-d-xo.html Like your vintage bike stuff never knew that.
Real role model how professional and humble you've been in every single video I've watched. Inspired to try to become more technical
Thank you Gary.
What an absolute beautiful peace of engineering this bike is! You seem to (e)Bee more of an mechanical engineer / machinist than an electrical engineer tough... Stunning never the less 😉
Thank you Jann. Yes, me and electricity don't always get along too well. But I do like creating things in my shop 🙂
@@paulbrodie That you like to make stuff has become very clear in your videos. 😉You just seam immersed in what you do and that is awesome. Also you seem to be more than busy replying to all the comments. That is extremally rare - especially with you follower count. You don't have to do all this but its very nice and shows how much you care... 👍
And electricity and computers and stuff are finnicky, I know that far to well. I was also a "mechanical hobbyist" (if you will) first but slowly I begin to get along with Arduinos and electric hardware stuff.
I can not believe that I hadn't found your channel until today but I am very happy to know it now.
Keep it up, greetings from Germany
@@jannsander Thank you Jann. Best wishes to Germany 🙂
A messy workbench is a sign of a genius at work. Very inspiring video, Paul. Thank you for docmenting the build and taking us along for the ride!
Some people think my shop is always neat and tidy, but that's not true. But, when the project is done, I always clean up.
Thanks for sharing your excellent build and even your mistakes. When I see your videos I feel you don't hide anything and as an amateur builder I appreciate it a lot.
We're trying to share the process of creation :)
Thanks, this is amazing! I've been reading your book this week end. It all ties in very well. Great run through and great editing.
Very interesting bike, you are a talented guy for sure. Thanks for sharing the details of this build.
Thanks for the history , Paul! Another awesome video!!
Thank you Rob. Glad you liked it :)
Great video once again Paul... I always watch your videos multiple times. Thanks :)
Kudos to Mitch for the great editing. Sound effects and arrows add another level of professionalism.
Thanks Ed!
Yes, I also noticed that Mitch stepped it up a level in this video :)
Absolutely! Top level production here in every aspect. Made the longer video not only entertaining but captivating too. What a cool project!
Also, that battery is about ⅒ the size of current ones, even furthering the idea that you even knew yourself this thing wasn't going fucking ANYWHERE
You Sir, have quite the dirty mouth.
Great story Paul, good to see such an awesome bike back together. Im sure you'll work the bugs out soon. I was so excited to see the photo of your belt sander in the Brodie book, I have already started building my own based off the one pic.
Send me a photo of the sander when you get it done.. Thanks for watching.
With the old Brodie logo too. That’s bloody awesome!
im literaly doing an identical project, but i have run into major money issues, every thing is figured out and ready to start fabing it up, just money is an issue. tho my design uses an EUC motor due to how slim they are (80-70mm wide) so they are PERFECT to run on standard bicycles with a narrow 68mm BB.
besides money the other issue (that i have many solution for but all are pricey) is mounting a sprocket to the motor side plate :p
but yeah my design pretty much is a fit in every bike solution as long as the triangle is large enough, but even then if its not, cut out the bottom tube and a slap in two new bottom tubes and have the motor sit between them.
as for the how to connect the motor chain to the rear wheel? this is the neat part, trails cranks, slap on a freewheel that can mount 2 104bcd sprockets, and you dont need any tensioners for the motor chain, and when using a full suspension BMX, or a slopestyle bike you dont even need a rear tensioner for the chain either since those bikes pivot exactly around the cranks chainrings.
so my current project pretty much is a full suspension steel bmx bike.
hub to mid conversion as said above (with the motor being able to push 8kw peak at around 400nm torque at the gearing id wanna set)
single speed ofc (i thought about belt but chain is just nicer but only bmx chain is strong enough, but is more effient than moto chain :D )
with a easy swapable 72-140v ish batery around 50ah to keep the amps down thus having more eficiency and bigger throtle curve electronics wise.
and since this is a OP build, the rear suspension will be ultra stiff with a lockout.
the front suspension will literaly be double deck DH fork the inverted kind with a boost hub setup of 20x110mm (working on a front peg mount mechanism there too)
the rear on 14x110 (might go rear 20x110mm too if i can find a strong enough hub) with stunt pegs that can take the weight of a full pasanger.
front 250mm surron disc brakes x2 due to a special hub with quad piston calipers
rear 250mm single with quad piston.
and other gimmicks etc.
guess the main dif in my build is its more of an ultra strong endurance beast in a small formfactor.
and retrofitting as much existing parts as possible to keep the price and complexity down.
and ngl kinda like how you made that hub to mid conversion, a french dude i know is building a very sumilar design but he replaced the motors core where the axle is with a custom machined one and custom sideplates too :)
wish i had a workshop like you then my project would probs be cheaper to create and easier
Yes, you have a Project on your hands! It does take money to make things happen, and having a shop is very handy too. The danger, I think, is taking on more than you can comfortably handle, and then getting discouraged, or stalling out... I have done both in my younger years. So, my advice is to take on what you can handle, and maybe a little more... Be realistic, do a little very day to keep moving forward, and never give up! Thanks for commenting...
@@paulbrodie I never give up honestly, most of the time I get forced to quit or stop due to money issues, if it weren’t for that could spend 95% of my awake time on building stuff it just comes that easy to me, now days though I spend less time building more time trying to find the best deals on parts like I literally spent 3 hours the other day just looking at at a new ratchet, and when im not looking for deals I’m searching for other similar parts to wich I need so I can modify them to fit my use case, maybe lowkey insanity when you live in a world where it’s cheaper to take a kitchen spoon and flatten it to file it into a special distancing tool so I can rivet two plates together and slide out the tool leaving just enough space to affix elastic wire netting than to find a dedicated tool for that 🤣
Or instead of having pre made chainrings that are narrow wide for Bmx chain I have to use 420 chain moto sprockets and shave and shape them down by hand cause they just don’t exist 😅
Wow, thats the craziest looking E-bike. What I mean is, eBee is gorgeous! I love the design. You did a fantastic job with the bike and telling eBee's story. Thanks, Paul.
Thanks for watching and your nice comments :)
@@paulbrodie you're welcome :)
I would love you to meet a man called Allen Millyard, you possibly may have heard of him Mr Brodie, he built his son a downhill bike with internal gears and no derailleur and also some fantastic motorbikes
You’re both an inspiration to a great many
Thank you. I would also like to meet Allen. I have watched quite a few of his videos. He definitely has some talent!!
You Sir. Are a master craftsman. I just stumbled across your channel recently and in Awww at your skills, My Mind Is Blown. Love your channel. Best Wishes, Martin.
Martin, thanks for watching and commenting!
This was inspiring to watch. LiPo are not ideal for ebikes. I had the exact same results with LiPo. I went to charge the bike while eating dinner and came out to a garage full of smoke. Thank God it was leaned up against the welding table. I build my own bikes and build custom lithium packs as a side job. I would have loved to help out with the wiring on this bike. Grin is an amazing guy to deal with and one of the pioneers of ebikes.
Thank you Ryan. Yes, eBee was a big learning curve for me. I do have to get back to that bike and figure out the programming so that it doesn't reset overnight.
@@paulbrodie what controller do you have?
@@Twin_turbo_coyote_fox It's from Grin Technologies...
@@paulbrodie I believe he worked with ASI to make those controllers. I run the biggest ASI controller they make on my bike. Great Canadian company
@@Twin_turbo_coyote_fox All of the electrics came from Grin Technologies...
Paul you are an absolute artist. I've just found your channel and I am ever more impressed with what you have created! this bike is not nice its absolutely beautiful and I hope when in 2000 years later humans rediscover youtube the actual peace will be preserved free from entropy, I hope you will get it working! maybe best would be just wire throttle directly make it simple to run! cheers and look forward to see your latest creations!
Adornas, thanks for watching and commenting!
8:25 I wonder where Vector and Stealth Bomber frames got their influence from? ;)
Cool bicycle and great video edite dad. Thank you for sharing 😍👍👌✌
Thank you for watching!
Thanks for this and the other videos. So relaxing to watch and listen to. Can’t help but think a CNC would be so helpful for you.
My shop is absolutely full. There is simply no room for CNC. Thanks for watching!
This is a work of art. For designing fairings or plugs a method that really works is to use rigid foam insulation. The high density stuff like “pink panther”brand glue sheets together to make a block. Then use a hot wire cutter to sculpt the shape as required. Wire cutters are excellent because you can “kink” the wire to carve deep recesses etc. (And I’m sure you could make a hot wire cutter with a guitar string) Modelling foam is also good as it comes in blocks but expensive. The house insulation is plenty good.then fibre glass it and gel coat and sand and paint etc. Hope that’s of help!
Thanks! Next time I do some molding I will try some pink panther sheets..
@@paulbrodie This is an excellent example of it th-cam.com/video/MAinuf5I_dw/w-d-xo.html 👍
You're wiring diagram at 19:46 shows only two wires going to the motor, if I read it correctly. That implies it's a DC brushed motor. Not good.
I think you should use a three-phase variable frequency AC motor. These are common in drones, Tesla, elevators, factory machines, etc. There's a whole technology around them including the inverters. Very efficient and reliable.
A DC brush motor is not going to be easy to control at all. Three phase AC offers huge starting torque and extremely precise RPM control, like for an elevator or a Tesla. Brushed DC is the very opposite, pretty terrible.
I would hope that some viewers who have experience with this technology could offer comments.
eBee is absolutely gorgeous!
I will have to check into that. I know a lot has changed in the 9 years since eBee was built. I am the first to admit that electrics is not my strong suit. Thanks JohnE.
Why don’t you just use a sprague on your Jack shaft or a free wheel sprocket so your drivetrain will coast without transmitting power back into the motor. If your motor is set up to charge your battery under deceleration design a sprague that will transmit power back to the motor controlled by the brake either mechanically integrated into a brake lever or electrically by way of a normally open electrical switch integrated into a brake lever.? Just an idea that might be a possibility for you. You might be able to use a 12 volt automotive magnetic A/C compressor clutch to control power flow.
I have a freewheel mounted on the electric motor. Does that count as a clutch?
I enjoy watching your work
Thank you Christopher :)
Happy and healthy new year to you.
A great concept. LOVE the Spaceframe design, Big motor, low battery COG... nice platform!
Full suspension probably much more effort to achieve a good tuned suspended system. The intention to have it was kind of visible on the first sight.
Perfect colour finish, darker red little bit more elegant for some reason.
Paul can you recommed a book on materials for (bike) technical applications, in order to know why e.g. one would choose 7075 for the sprocket for this project or or in other cases combinations of materials? Maybe you choose these from experience. Thanks.
Happy New Year to you as well :) I have a pretty good library, but most of the technical reading is focussed on motorcycles. I have a few books on bicycle frame building, but they won't tell you which aluminum is better for a sprocket. I just know from experience that 7075 is harder and more durable than 6061. I have books on motorcycle engine development, chassis design, suspension design, metallurgy, heat treating, machine shop practice, and much more. So, it's hard for me to recommend a book to you that relates to bicycles and encapsulates all that. I would suggest just start reading anything that relates to metal and fabrication... Good luck!
@@paulbrodie I appreciate your feedback. Best Regards
this bike is quite reminiscent of Allen Millyards
Agree
I think it is a very cool bike , ebike electronics are evolving and it shouldn't be long before there is a good setup for us retrofitters
Amazing design and work. Congratulations.
All batteries including lithium batteries will slowly self discharge over the course of several months. Also, most types of Lithium batteries will internally degrate faster than standard if left fully charged or fully depleted for many months. Lithium batteries generally prefer to be stored at 50% charge if storing long term (1+ months) and they can lose a good amount of charge if left for 3 months or more so it is generally good to check them every 2-3 months or so and charge them back to 50-70% before leaving them long term again. Some Lithium batteries can go into a low voltage "sleep" state if you leave them for too long. It takes a special charging method to get them out of this state without damaging the battery. Many chargers do not have this special charging mode and just assume the battery is above the "sleep state" voltage. Your battery manufacturer can recommend the best storage methods for your particular battery. Different chemistry types of lithium batteries have somewhat different charging, discharging, and storage reccomendations.
Interestingly some lithium battery chemistry types can have a roofing nail driven through them and not catch fire. Others will instantly burst into flames.
Thank you Josh.
This bike is amazing 🔥🤘
That frame is great and even the rolhof 14...but the central part it look too "crowdy" and "chainy" ! But the whole bike it's very fascinating
I am from Ukraine.Admire your work.Frame is awesome.
Amazing....
Thanks Brian.
Between your channel and This Old Tony's channel, awesome.
I've watched his channel. I have no idea what he looks like :)
@@paulbrodie Yeah, it took 1 Million subscribers to actually show his face, for the first time, waaay back in 2017! Here he is, starting at the 00:29 mark:
th-cam.com/video/vJIzkIc_wIU/w-d-xo.html
@@eddietowers5595 That was cool. Thanks for sending the link :)
@@paulbrodie No problem.
You sir ,are a brilliant fabricator
What a wild build.
I am so impressed that you documented the process before social media and TH-cam!
Sad that it caught fire but at least no one was hurt and you were not riding it at the time.
What did the school say when they heard your bike caught fire? :)
Well, there was a fire, so the Fire Dept got called, the University Safety Steward came, The Dean, in all there was 8-9 important people standing around talking, discussing, but there was nothing to do really, because the fire was already extinguished and it was only my bike that got damaged. So after some discussion, everyone left.
Ahhhh the Italian Harley in the back ground!
What's your opinion on whether aluminium frames need to be heat treated after welding ?
6061 for sure. Some 7000 series frames just have to be left and they artificially age on their own, depending on what kind of 7000 series the aluminum is.
This is just beautiful people usually say I made a ebike and they are like I’ll just buy a frame and put a rear motor and they are done but u sir go 10 steps further u make a real custom made bike.. I would love to see you make a super73 style bike with maybe a bafang mid drive motor anyways thank you very much for these beautiful videos
Rahul, Thank you for liking our videos.
Oh so honest review beautifully done
Thank you Yogesh.
Just stick a transformer or op amp / relay on the crank sensor so the computer sees the signal level that is right for it.
As i suspected when you said your original batteriy were Li-ion and then mentioned the fire that they were in fact Li-poly witch proved to be the case in the last segment. The latter are pretty well known for their volitility from their years of use in the RC world but in '12 if you wanted performance they were higher output than the NiMh/LiFePo4 that eBikes of that era used and in fact some still used SLA batteries such as the Currie models. Luckily time and technology moved on and you are now using Li-Ion or perhaps Li-Mn both of which due to their stability resulting from the use of a Baterry Management Systeim (BMS) which will cut off drain at a voltage that doesn't cause issues, hopefully. Still have to be cautious however and my advice would be while storiing eBee to try and keep it at around 50-60% of charge so that it doesn't go to the LVC and below which can happen over time. It may not result in fire as last time but you will brick the battery.
I use Grin components and I do admit that at times they can be a struggle to get on the right path to consistent performance and the one thing I would suggest is to add a throttle to the mix as it would help to get the system up to speed where the torque sensor can carry on? Should be very easy to do using a CA3 as all mine do.
Once again thanks for sharing your knowledge!
Thanks Bob.
Do you still teach framebuilding? I would be interested in learning from you if you still do.
Sorry, I no longer teach Framebuilding 101. I am retired and have a TH-cam channel...
The Canadian Electrical Code, Section 12. Wiring Methods...and there might be something if interest for a renowned Conductor of Bicycles.
This is the section that covers conduit and the conductors that fill them in a percentage of area. 40% is cool enough for anything from blacktop to muck.
The Technical Safety Branch BC was always my favourite place for getting one off prototypes certified...not that any of this is relevant. I just felt like doing something other than waiting to be let out of doors again.
I grabbed a very early fillet brazed Romax for going up and was traded an 8 Ball for down and they both have worn through their share of rubber.
Always interesting stopping by, thank you sir.
Jim, you still have both bikes?
@@paulbrodie Yes, I still have both of them. My Romax has remained mint through sheer luck and my 8 Ball remains solid with a few cosmetic battle scars. They're like family.
I don't know much but have you tried putting a smaller sprocket by the crank ive been watching these u tube videos to figure out what I want to build and I think I heard someone saying they had the same problem and by gearing the sprocket down by the crank it helped
It's not a gearing problem, it's a software issue. But thanks for thinking about it!
Im watching your video again love watching them I get what you mean now about the software issue. I got my bike now and I was having the same issue I would program the sw900 and when I shut it off I would go back to the same settings as before I watched a video about some kid setting his up and I needed to save the settings I have an app called MQCON and I can set on there but I pretty sure without the app you need to hold the up down button together for a few seconds or the off button for a few seconds
What's the name of your digital display
Beautiful
Respect ✊
Thank you Todd 😉
top , parabéns pelo belo projeto de ebike!
Thanks for watching!
Sounds like the battery in the controller/display is flat, so it won't hold the settings.
I was told settings can change if the bike is not used for a long time, or if it is stored near strong magnets, which it is not..
@@paulbrodie
The setting will be stored in some kind of nvram (non volatile random access memory), most probably an E prom.
These are magnetic storage mediums, so they don't play nice with magnets.
The changes are often stored in ram, so if it loses power for any reason all the setting will default too.
This can be because it's using a rechargeable battery that's run flat due to not being used for so long, or just a normal battery that's dead.
My thought is the front sprocket is was too big for riding smooth. You should get a much smaller.
The gearing is fine. There is 14 speed in the rear wheel...
Brilliant bit of work as usual but I think you were too early into the game and the available components at the time were scant. I was just reading that the Roloff cant be shifted under power or with the cranks turning so inspite of its superb design ... I think you should do EBee2 but with a Bafang M260 midrive with the Ludicrous controller and a 52 V Shark Battery pack. That would be around 2.5KW @ 160NM. My 2KW Cyclone motor will do 40MPH with a fully charged 48V pack and is more fun than a barrel of monkeys on the trails. Thanks for the vid👍👍
Yes a lot has changed since I built eBee. No plans right now to build eBee 2.0 thanks for watching!
Nice motorcycle design but you didn't need the cranks from the bike
But I do need the cranks. The cranks have a torque sensor that activates the electric motor. If I don't pedal I don't go anywhere...
Mitch, arrows are cool and VERY apparent. Annoying popping noises are not necessary.
Well Dave, I thought the popping noises were cool. Thanks for watching!
@@paulbrodie Oh I apologize, I was just offering my opinion. You make TH-cam videos, I just watch them, so you would know more than I. Thanks for the for the great content.
Chassis reminds me of Bimoto motorcycles.
Probably inspired by Ducati.
Great work Paul. Can you (or another commenter) point me towards the steps for making a sprocket on a manual mill?
Thanks. You are asking a question about a subject that doesn't have a simple answer. You know there are technical machinist books out there on cutting gears and sprockets, right? Machinery's Handbook comes to mind, and you could probably pickup a used copy and save some $. Nobody taught me, I did not read a book or take a course. I got a sprocket and started looking at it. Trying to figure out how to hold an aluminum disc, and then how to cut the teeth. That was 9 years ago. I can't remember exactly how I did it. If I made another one tomorrow, I would go through the same process all over again. Being a problem solver is a big part of being a good machinist. The mind is always working. How can I do this better? Faster? Hope this helps.
@@paulbrodie Thank you. Yes, I have a machinery's handbook, but the sprocket tooth has so many curved features, and yours looks "simplified" for production with a "simple" machine with cross slides. There is, of course, many ways to skin a cat.
@@woodyjumps I think I did a big cut, 2 small cuts and then hand filing to get the shape.
eBee needs 4-inch tires!
Think simple my friend ,Think of like a dimmer switch to power the motor instead of a computer program .That way you decide the power level you put out.
I am very desperate at this moment is the bike for sale
Alex, sorry, eBee is not for sale. I plan to fix and ride her this year.
hmmm, I see LOTS of space to install rear shox there.... Battery at the bottom? XD ding it XDDD while empty cage above
I guess you are seeing things that I cannot. Thanks for watching!
What is the price for ebee
eBee is Unobtanium, sorry.
Just add a throttle to the display and put in throttle only mode. Would be much nicer to ride.
But, I want to get my exercise too!
Have you look up Grim Technology on TH-cam they have allot videos up I watched a video there's it seems helpful I hope this helps I would love to see EBEE Gooooooo love everything you do on your TH-cam videos thanks so much
Thanks Todd. Yes, I know the owner of Grin Technology. All the electrical components on eBee came from Grin. Thanks for watching 😉
This is more a Ducati frame! Great!
Motorcycle inspired, for sure.
Wait? Who is behind the camera?
No need to wait, it's Mitch! I mention that at the start of every video :)
Ask Grin technologies to help U sort it
I'm shore U guys will be able to help each other
If you will use mid motor Bafang, you will have place for full suspension! and battery will full fit above motor. Now it's too complex, unnecessary complex and bulky on bottom.
endless-sphere.com/forums/viewtopic.php?t=95899
I think it's a little late to make a major modification like what you have suggested. But, thanks for watching!
As a BMX rider, those dropout are terrifying..... They look so sketchy, IDK if I could trust them. 😱
I made the rear dropouts extra thick and strong.
@@paulbrodie - How do they hold up w/ that slotted design and the Allen heads holding it¿? That looks like a potential weakness and I don't understand how it works.... 😔
@@xpndblhero5170 The dropouts slide in rails, so there is no actual force on the 8mm Allen screws. Make sense now?
@@paulbrodie - Yeah but wouldn't there be a lot of side force on the dropouts which could break those Allen screws¿?
@@xpndblhero5170 This is a bike to be ridden around the streets, not jumping like a BMX. Under "normal" circumstances, those bolts will be just fine!
It's a bit German I'd say, unnecessary over-engineered. But it has a nice steam punk look to it, tho!
A lot of these bikes are built for what they look like. They're neat to look at but are heavy and expensive.
Good bike frame designs look boring because they're meant to be light and strong enough, so they're structurally 'minimalist'. Not much to look at.
im glad the EBee fire didnt take your shop with it. I love the ducati influenced frame. I built a 71 SL350 k2 and painted it a similar color. Used a honda red and mixed black in till i like the shade.
Cool. Thanks for watching!
That thing looks to weight at least 50kg
Wrong. I weighed it Only 69 lbs!
It must be bugging him to have spent all that time on a very expensive sculpture :(
Should do a collab with one of TH-cam's ebike expert to fix the bugs.
Ducati meets brodie, poster material?
На мой взгляд, более толстые колёса смотрелись бы намного лучше!
Jalanin ki sepedanya
I don't typically like ebikes.... This one looks fantastic, would love to own one. That frame makes me thing Ducati. oooops, should have watched longer, then I heard you say Ducati was an influence. Sorry :-)
Yes I definitely wanted a motorcycle influence in my bicycle!
👏😊
That's a lot of chain, LOL! trellis frame is cool like older Ducs. I am getting a welder again after watching your vids, :)
th-cam.com/video/3Ep3Bag7QaM/w-d-xo.html Like your vintage bike stuff never knew that.
Good luck with your welder! Thanks for watching!
Shame it doesn't work.
Who said that?
Curse of ebee
What’s the point if you can’t ride. Lol trailer queen eb give me a break
Great project and commissioning top notch. Not really a fan of all these chains though.
ugliest bike ive ever seen
Hard to know how to respond to a comment like that.
Thanks for this and the other videos. So relaxing to watch and listen to. Can’t help but think a CNC would be so helpful for you.