👍ЗдоровО@@pedro-nevesВерный подход к геометрии и кинематике🤫 Множество "строителей" не изучают геометрию поворотной оси😔 "бьются головой о стену", но пытаются убедить в ... сложностях🫣 Начинаю собирать шаровые и наконечники, готовить документацию для заказа в цеху металообработки🤕 БлагоДарю Pedro за открытую информацию о проекте✊️ Быть Добру✊️
Pedro, Thank you so much for sharing your adventure in design and fabrication of your tilting cargo tryke! I appreciate your problem solving methods, and how you give credit to the person who shared ideas for the Ackerman geometry. I've enjoyed each of your videos in the series, too.
This is the first time i catched a vid from this channel, but this content is interesting AF, you are gaining track on this project, and made it open source, there's so much love in doing that, ty so much for your time and skill on bikes!!
Thank you for sharing the plans and series, it was great to watch a talented engineer go through the iteration process, and convincingly nail the geometry. So much better than the 'sort of works for the video' which is the usually for a diy yt video, but your series was quality all the way. I also am impressed with the dutch in general, over many videos, I've never seen the sun in any of your shots, yet the dutch are bike crazy, the wet doesn't deter them, solid.
Thank you so much! Indeed, what I like to do is a project that works and share the knowledge as clearly as I can. It's super nice to read that this is appreciated. I'm from Portugal and moved to The Netherlands about 11 years ago and I also became impressed with general being ok with rain. In the beginning I was wondering why there aren't bikes with a cover or something but then I also learned that it's ok to get wet;) Cheers!
This is just awesome, I want this bike! Loving the series, the progression, the problem solving. Congratulations on making this, a truly ingenious build.
For the parallelogram joints: put them on different levels to prevent the bar from moving/tilting. For example put the left and right one below the bar.
Hi thanks! That's an interesting idea. Though, I decided to try to make it work with a simpler connection and it's working pretty well. I'm fabricating the final parts and will put together a video about it soon. Cheers!
First time, instant sub! That's quality engineering, fabrication and videography 👏👏👏 I felt spoiled with that footage (12:20) of working mechanism, top notch content 👌
Thank you for subscribing! I always try to improve so I think the projects and the quality of the film will keep getting better. I like that footage very much as well. I also think it's a nice detail with the bus with "Centraal Station" written as destination. I love this city;) Cheers!
Hi, thank you! I adjusted the pressure of the shock to have a sag of ~5 mm when not carrying cargo. But I'll try to have a high fps film of the shock to see if it moves when riding. Cheers!
@@pedro-neves my main thing is mostly my own body is revolting against riding most bikes unless the bars are swept back and almost completely vertical and close to my body as just having my arms stretched out strait gets really sore after 30 or so minutes. And just putting pressure is even worse. iv got pin's in both my shoulders from falling few years ago and next to no cartilage on the joints.
Great video. I enjoyed the closeup clips of your mechanism in action! What a good way to help viewers develop confidence in and understanding of such a complicated mechanism. I hope to ride one myself someday. I imagine that your trike might accommodate a tandem stoker rider in the cargo area and put them 6-10” lower for a safer more stable feeling. Perhaps you will incorporate a tilt lock that will make low speed maneuvering easier. I look forward to your next iteration and video.
Thank you so much! Indeed, I try to make the video in a way that explains well to others how to build. Adding a tandem would be a project on its own. This would make it truly unique;) I definitely have on my near horizon adding a tilt lock. Cheers!
This just keeps getting better. I wonder if there's a way to limit damage to the steering from collision by making a sacrificial slipping joint with a vertical axis on the frame just behind the steering mechanism. I would hate to see your work damaged. Well done, it really looks very impressive.
Hello Pedro. Thank you once again for making available to us all this information and congrats for reaching this milestone. Would it be possible to measure the leaning angle achieved with the design ?
You are welcome. Thank you too! That's a very good question! I'm working on some tests and the leaning angle will be one of the main talking points in my next video. I don't mean to keep you waiting but I'll give a very good explanation on it.
looking nice - front breaking might be "fun" since I don't think it's easy to have exactly the same force applied left/right? and that might mess things up? idk
Thank you! I haven't started the break challenge indeed;) With hydraulic brakes, I believe the force of one lever will be distributed downstream to both ramifications in equal way. But I haven't tested yet. Let's see;) Cheers!
Best Channel on yt :) Maybe change the parallelogram to bushings instead of welded bearings. It could reduce the flex a bit and seeing you weld the bearings almost gave me a heart attack. But hey, if it works, right? It would also be really slick if you could make the base of the parallelogram ride on the shaft of the front steering arm, but there would need to be a way to hold it fixed.
Thank you! Indeed, this is not the finished version. I was just trying it but I will make a proper steering rack based on this principle and show it on the next video;) Cheers!
Looks great! Would it it work to put the steering part of the parallelogram on the underside of the block and keep the two on the sides up top to avoid the twist? Seems to be working with the bearings but could reduce the load on them.
This is exactly what I was thinking. Eventually, the way it is now will lead to cracked welds or destroyed bearings. And in the mean time, there will still be some unwanted flexing
Thank you! Ya, absolutely. I put the pulley below so my thought was to put the parallelogram above to not use more space underneath the vehicle. I'm trying to make cargo MTB maybe;) Cheers!
Looking good Pedro! The steering ratio looks a bit quick, especially if you're going to be loaded up with a couple of kilo's. I find that my Cangoo really likes the bigger diameter pulley's for the cable steering, when I have both kids in the box (50ish kilo currently). Have fun! Pjotr
Hi Pjotr! Indeed, it sounds like bigger pulleys would do a better job. These are doing pretty well without cargo but with cargo it might be nice to have the extra torque. Hope you're doing well! Cheers!
@@danstenis660 that would be super cool! I will do some tests to know its autonomy and also will make an adapter to make it able to charge in public EV charging stations.
I just came into this channel. Great videos! I built a 2 wheel cargo bike and the work was a fraction of what you are doing. A question about the steering: does the added complexity and possible slack worth having ackerman angle? How better does it feel compared to the 2 wheels turning at same angle?
Hi, thank you very much! The Ackerman angle has to exist. The outer wheel has to turn less than the inner wheel or else the outer wheel will scrub (and that just doesn't drive well). I'm trying to revert on the complexity and achieve it without the parallelogram. I'll update in the next video. Cheers!
Hi Pedro! Congrats on your channel and your projects! How about a universal (or almost) 'cargo trike conversion kit' for a traditional bike? I supose you like to build things 'from the ground up', but this could be a great project as well. Looking forward to see the next videos!
Hello Jorge, thank yo so much! Indeed, in the future, I plan to sell some parts at least to help others making tadpole tilting trikes. Maybe a kit even. Cheers!
There’s an English fellow who did just that. He built one of plywood and tested and evaluated it. I’m not sure if he continued on after that or not. Very instructive though.
I have to ask if the parallelogram was truly necessary. Mounting the two inner tie rod links at that central point that actuates the parallelogram shouldn't compromise the ackerman angle and would simplify your design. You could have one mounted below and one mounted above that point and have equal length tie rods. Regardless. I've enjoyed watching this. Given you have front suspension do you have any plans to add rear suspension or a suspension seatpost?
Hello, I'm trying a few different things because the steering is not working as desired when it tilts (it does the opposite of Ackerman actually). I think the parallelogram may not be necessary. I'll post the changes in my next video. The rear suspension is optional and independent of all the trike mechanism geometries. Personally, I don't think it's needed. The front suspension does a good job with the overall behavior. Cheers!
Very nice to see the bike in action. Do you think the front suspension spring and chock-absorber is really neccessary? Most road bumps will only affecting one of the front wheels at a time and therefore will affect the bike half as much as bumps on the rear wheel. And the rear wheel hasn't got any suspension.
Thank you! Indeed, I think so. Even with mountain bikes I've transitioned to hardtails. I generally feel that the rear suspension is not very needed as the front suspension will make a big difference in the comfort and steering. But this is just my feeling, not a scientific conclusion.
Amsterdam's roads can be incredibly bumpy, particularly in the older areas of the city and where lots of tram tracks are. Those old cobble stones along tree lined canals look really nice, but they make the ride very rough.
Love the build and the video. Is there an engineering/functionality reason why the parallelogram has three links, rather than two? I was thinking that offsetting the steering pulley shaft to the side could allow it to replace one of the links, simplifying the mechanism, but I may have missed something fundamental.
Thank you! Indeed, I designed it like that the first time as well but it happens that the steering does a circle changing too much and by incorrect proportions the length of the steering rack.
It seems to work really nicely, I'm curious do you get any 'roll steer' that is if you lean the bike(with the handlebars unchanged) does it effect the angle of the front wheels, to me it should be giving you 'toe in' but it may not be all that noticeable.
I think that, when rolling, there is always a bit of the turn of the steering bar. I recently watched this video about turning and rolling that was very entertaining and informative: ruclips.net/video/vSZiKrtJ7Y0/видео.htmlsi=zFVB6Q1szDZ8rC-O.
The bowden cable steering looks nice, but i would be really worried about hitting something that kicks the wheel to one side, and snapping a cable. Wouldn't using a chain be more reliable?
Hi, absolutely. There are four cables. Two pulling in each direction providing redundancy so if one snaps you still got the other one to take you home.
I am not fully convinced. Doesn't the tilt angle depend on the velocity and loaded cargo's weight? If so, the steering and tilting should either be independent or the tilting must have an element that adapts to the speed and weight. Maybe it must even be an active one, but that's not a problem since it's an electric bike anyway.
Hello, the tilt is more or less the same as riding a bicycle. You can lean more or less depending on your riding style. In this case, it doesn't need to be active. Cheers!
I understand that the anti Ackerman is done in some racing cars to cause the outer tire to slip in tight turns in order to make the inner tire grip more by comparison and thus making tighter turns.
when will you be annealing, heat treating, and aging the frame so it is safe to ride? Even if you used an alloy that does not require post-processing after welding for the new frame, the original bike frame has a 99% likelihood of being made from an alloy that does, so the connections to the old frame will require proper processing if you do not want to risk serious injury from sudden catastrophic failure. this is a cool project, but aluminum was not a good material choice if you are not prepared for the complexities of working with it. CroMoly steel or Titanium would be much safer options.
This center steering rod combo with 2 rods and a parallel pivot thingy is weird, why it needs to be so overly complex ? Old cars like VW Beetle has such system and it is made way more simple using only one lever and 2 rods.
@@pedro-neves you can completely remove the 3D part, 2 parallel rods, welded ball bearings and the joining aluminum rod. It becomes more solid, light, and simple. BTW what wheels/hubs are you using ?
@@bobsnabby2298 I also think so. Working on it! The wheels are awesome! I have a video about them: ruclips.net/video/TVEJODKh5ZA/видео.htmlsi=KGKfLTi3Meyd41Mv
the paralellogram makes it possible for the three steering points to move in the same plain and the same amount. it would be perfect if it was possible to make the three points a single point but I figure that solution would require some custom machining and is not readily available. so this solution makes things easy.
Hi, absolutely. There is a link in the description to my website where you can find a link to download the whole thing, including the cable steering system.
@@sempi8159, the parts were offered by JLC3DP to support this project. But if you would like to know the price, you are welcome to download the CAD model and submit in their website for a quote. Cheers!
Thank you for sharing your invention... I have a recumbent bike that needs two wheels up front... your videos have been an inspiration... now to get my "A" into gear. I made a "one time donation". Can you share the General Arrangement in .dxf for us who don't support yankee monopilisation? Thank You.
Thank you so much! It makes me happy to see my work valued. Unfortunately, Autodesk Fusion does not allow exporting the model to .dxf with the free version. I exported to step that should be universal to CAD software. Otherwise, you can download Fusion for free and open the model. I hope that works out for you.
@@pedro-neves Dear Pedro, many thanks, the step file opens in my Rhino Cad software. You have done a lot of work on this project, and I really appreciate you sharing your work! regards, Roger.
32 kilos for a cargo e-trike... That's extremely light. For reference: Normal e-bikes weigh around 30kg, e-cargo with front trunk usually around 50kg and e-cargo-trikes reach into the 60+kg territory.
flat bearings or bushings would be much better than ball bearings for your parallellogram. ball bearings are absolutely terrible at handling twisting loads like you're applying here, they are only good at handling loads that are aligned with their radius, which is only a very small part of the load you're putting them under. if you replace those bearings with bushings, preferably bronze, your suspension will last much longer before requiring a complete overhaul, and the overhaul will be cheaper to do and require only off-the-shelf parts. as you have it now, the inner and outer races of those ball bearings are going to separate from each other and spill out all the balls. roller bearings would solve the issue as well, but they're generally much more expensive and don't come in as small of sizes, and they're still worse than a bushing at dealing with twisting loads at low speed.
Absolutely. This was only to prove that the system works. I'm working on the "final version" with proper parts and proper bearings and will show it in the next video. Will not be perfect so I expect some comments there as well;)
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
This is the most serious channel about cargo bike wasn't just build but also mechanic stuff
Thank you! I've been learning a lot and it's nice to share the knowledge;)
👍ЗдоровО@@pedro-nevesВерный подход к геометрии и кинематике🤫 Множество "строителей" не изучают геометрию поворотной оси😔 "бьются головой о стену", но пытаются убедить в ... сложностях🫣 Начинаю собирать шаровые и наконечники, готовить документацию для заказа в цеху металообработки🤕 БлагоДарю Pedro за открытую информацию о проекте✊️ Быть Добру✊️
Tadpole Tilting Cargo Trike #4,837 - Levitating and Inverted Flight
Hehe;) I think I will do those many iterations.
Honestly, this is the kind of content youtube is made for. And cat videos.
Put a cat in the cargo carrier? RUclips GOLD!!!
Hehe, absolutely;)
@@NikConwell or a bunch of cats;)
@@pedro-neves DO IT!
@@horstpansen7595 I definitely have to figure out something spectacular;)
Pedro, Thank you so much for sharing your adventure in design and fabrication of your tilting cargo tryke! I appreciate your problem solving methods, and how you give credit to the person who shared ideas for the Ackerman geometry. I've enjoyed each of your videos in the series, too.
Thank you so much. It's been a journey and I enjoy sharing and also learning with so many great contributions!
By far the most informative channel on cargo trike building. Another excellent video! I'm currently working on a cargo trike because of your content.
Thank you so much! It is so rewarding to read that my builds inspire others to build;)
It's great to see the steering design in action. The trike is turning out great. keep up the good work and I look forward for future videos.
Thank you so much!
Thanks for the excellent choice of music! And the bike is interesting too!
Thank you! The good music is also important to me;)
This is the first time i catched a vid from this channel, but this content is interesting AF, you are gaining track on this project, and made it open source, there's so much love in doing that, ty so much for your time and skill on bikes!!
Thank you so much for your kind and inspiring words;) It's super cool to iterate and make it better and better and share the journey;)
Cheers!
Nice. The trike seems to really handle the terrain well.
@@Alan_Hans__ thanks! It does ;)
Thank you for sharing the plans and series, it was great to watch a talented engineer go through the iteration process, and convincingly nail the geometry. So much better than the 'sort of works for the video' which is the usually for a diy yt video, but your series was quality all the way. I also am impressed with the dutch in general, over many videos, I've never seen the sun in any of your shots, yet the dutch are bike crazy, the wet doesn't deter them, solid.
Thank you so much! Indeed, what I like to do is a project that works and share the knowledge as clearly as I can. It's super nice to read that this is appreciated.
I'm from Portugal and moved to The Netherlands about 11 years ago and I also became impressed with general being ok with rain. In the beginning I was wondering why there aren't bikes with a cover or something but then I also learned that it's ok to get wet;)
Cheers!
one more excellent video Perdo. Well done as usuall.
Thank you so much!
This is the first video I've seen in a long long time that actually has a decent choon, I commend you
Hi, thank you very much! Indeed, I decided to license good music. I even enjoy editing the videos more;)
It's nice to have positive feedback;)
Cheers!
Great video as usual
The Bike now Starts to Look really good
Thank you! I also think it looks cool;)
It looks like if you could increase the rigidity of the steering bar, you could eliminate one side of the parallelogram.
I will increase the rigidity for sure!
It looks like you've accomplished your goals. Congratulations and enjoy.
Thank you!
This is just awesome, I want this bike! Loving the series, the progression, the problem solving. Congratulations on making this, a truly ingenious build.
Thank you so much! That's super kind;)
Cheers!
Awesome! When I read your replies to comments, i hear them in your lovely accent!
That's very kind, thank you!
For the parallelogram joints: put them on different levels to prevent the bar from moving/tilting. For example put the left and right one below the bar.
Hi thanks! That's an interesting idea. Though, I decided to try to make it work with a simpler connection and it's working pretty well. I'm fabricating the final parts and will put together a video about it soon.
Cheers!
Fantastic update, you really made great strides. Super nice to see it all come together. I can't wait to see your next one!
Thank you so much! Next I will make a proper steering rack, show some test results and describe what's good and bad about this design.
Cheers!
Given how little the parallelogram joints move, I think you could replace all the bearings and ball joints with shoulder bolts and bushings.
Absolutely. I'm divided between normal roller bearings and bushings.
I would love to see quad 🎉
Superbly done 🎉🎉
Thank you!
I think my next project will be a car actually;)
@@pedro-neves Wow... even better.
First time, instant sub! That's quality engineering, fabrication and videography 👏👏👏
I felt spoiled with that footage (12:20) of working mechanism, top notch content 👌
Thank you for subscribing! I always try to improve so I think the projects and the quality of the film will keep getting better.
I like that footage very much as well. I also think it's a nice detail with the bus with "Centraal Station" written as destination. I love this city;)
Cheers!
Impressive! You just convinced me to make my own version of something like this! Thanks. Keep the videos coming
Thank you! It's very rewarding to ride a self built video;)
Cheers!
This was very cool to watch
Thank you so much!
Good progress!
Thank you! Still working on the next;)
This exactly the type of trike I want! With a big freezer or cooler on the front.
One needs a cooler right?;)
Great job Pedro! Keep it on!
Thank you!
vry nice build! check the shock, may need to get softer.. don't see it moving, even when you climb the curb.
Hi, thank you! I adjusted the pressure of the shock to have a sag of ~5 mm when not carrying cargo. But I'll try to have a high fps film of the shock to see if it moves when riding.
Cheers!
this thing is awesome looks cool would love to see a semi recumbent with under seat steering version
Thank you! Ya, I get this comment a lot;) I would also like to see it as a recumbent. Mostly because I would be able to make a rain cover;)
@@pedro-neves my main thing is mostly my own body is revolting against riding most bikes unless the bars are swept back and almost completely vertical and close to my body as just having my arms stretched out strait gets really sore after 30 or so minutes. And just putting pressure is even worse. iv got pin's in both my shoulders from falling few years ago and next to no cartilage on the joints.
@@jaylord55 I totally understand. I also tend to chose more upright geometries these days.
Very nice!
Thank you!
superb as usual Pedro 🙂
Thank you so much!
omg I love this bike I wish to build one when I get the space to store it
Thank you! Indeed it takes some space in my backyard;)
Great job!
Thank you Thomas!
Excellent work! I’m really enjoying your videos. 👏👏👍🏻
Thank you so much for the inspiring comment;)
wow and peace be upon you sir from java island
Thank you! You too!
Great video. I enjoyed the closeup clips of your mechanism in action! What a good way to help viewers develop confidence in and understanding of such a complicated mechanism. I hope to ride one myself someday. I imagine that your trike might accommodate a tandem stoker rider in the cargo area and put them 6-10” lower for a safer more stable feeling. Perhaps you will incorporate a tilt lock that will make low speed maneuvering easier. I look forward to your next iteration and video.
Thank you so much! Indeed, I try to make the video in a way that explains well to others how to build.
Adding a tandem would be a project on its own. This would make it truly unique;)
I definitely have on my near horizon adding a tilt lock.
Cheers!
This just keeps getting better.
I wonder if there's a way to limit damage to the steering from collision by making a sacrificial slipping joint with a vertical axis on the frame just behind the steering mechanism. I would hate to see your work damaged.
Well done, it really looks very impressive.
Thank you so much! Indeed, I try to keep a balance between making it better every time without adding too much complexity.
Cheers!
wow well done
Thank you!
this thing is wild!!
It's pretty wild to ride a self created vehicle;)
Give the man the Dutch passport already!
Hello Pedro. Thank you once again for making available to us all this information and congrats for reaching this milestone. Would it be possible to measure the leaning angle achieved with the design ?
You are welcome. Thank you too!
That's a very good question! I'm working on some tests and the leaning angle will be one of the main talking points in my next video. I don't mean to keep you waiting but I'll give a very good explanation on it.
@@pedro-neves This will be perfect. thank you
looking nice - front breaking might be "fun" since I don't think it's easy to have exactly the same force applied left/right? and that might mess things up? idk
Thank you! I haven't started the break challenge indeed;) With hydraulic brakes, I believe the force of one lever will be distributed downstream to both ramifications in equal way. But I haven't tested yet. Let's see;)
Cheers!
Yeah, I pretty much have to get one of those.
Dilemma though should I build a fleet of them?
A fleet!
I like it very nice
Thank you!
Великолепно смотришся на своей продуманной констукции🤩 Интернет выполнил свою настоящую функцию, познакомив с тобой и регги👍 Быть Добру и СоЗнанию✊️
Thank you;) That's very kind.
how about adding a tilt lock mechanism so that when you stop you don't have to hold the bike with your feet
Absolutely. I'll include this at some point.
Best Channel on yt :)
Maybe change the parallelogram to bushings instead of welded bearings. It could reduce the flex a bit and seeing you weld the bearings almost gave me a heart attack. But hey, if it works, right?
It would also be really slick if you could make the base of the parallelogram ride on the shaft of the front steering arm, but there would need to be a way to hold it fixed.
Thank you! Indeed, this is not the finished version. I was just trying it but I will make a proper steering rack based on this principle and show it on the next video;)
Cheers!
Looks great! Would it it work to put the steering part of the parallelogram on the underside of the block and keep the two on the sides up top to avoid the twist? Seems to be working with the bearings but could reduce the load on them.
This is exactly what I was thinking. Eventually, the way it is now will lead to cracked welds or destroyed bearings. And in the mean time, there will still be some unwanted flexing
Thank you!
Ya, absolutely. I put the pulley below so my thought was to put the parallelogram above to not use more space underneath the vehicle. I'm trying to make cargo MTB maybe;)
Cheers!
Looking good Pedro!
The steering ratio looks a bit quick, especially if you're going to be loaded up with a couple of kilo's. I find that my Cangoo really likes the bigger diameter pulley's for the cable steering, when I have both kids in the box (50ish kilo currently).
Have fun!
Pjotr
Hi Pjotr! Indeed, it sounds like bigger pulleys would do a better job. These are doing pretty well without cargo but with cargo it might be nice to have the extra torque.
Hope you're doing well! Cheers!
Make it capable of fast charging at public charger also. And maybe a top platform for sleeping on with storage below.
I will make it able to charge in public AC Charging stations;)
@@pedro-neves Would love to be able to take this reverse tricycle on a tour across a country, especially a big one, like the USA.
@@danstenis660 that would be super cool! I will do some tests to know its autonomy and also will make an adapter to make it able to charge in public EV charging stations.
I just came into this channel. Great videos!
I built a 2 wheel cargo bike and the work was a fraction of what you are doing.
A question about the steering: does the added complexity and possible slack worth having ackerman angle? How better does it feel compared to the 2 wheels turning at same angle?
Hi, thank you very much!
The Ackerman angle has to exist. The outer wheel has to turn less than the inner wheel or else the outer wheel will scrub (and that just doesn't drive well).
I'm trying to revert on the complexity and achieve it without the parallelogram. I'll update in the next video.
Cheers!
Hi Pedro! Congrats on your channel and your projects!
How about a universal (or almost) 'cargo trike conversion kit' for a traditional bike? I supose you like to build things 'from the ground up', but this could be a great project as well.
Looking forward to see the next videos!
Hello Jorge, thank yo so much! Indeed, in the future, I plan to sell some parts at least to help others making tadpole tilting trikes. Maybe a kit even.
Cheers!
AMAZINGNES!!!
Thank you!
Looking fantastic Pedro. Do you think your steering design would work on a recumbent?
It should work just fine, but it may need some tweaking to fit the geometry of the different vehicle.
Thank you! Ya, absolutely. The Ackerman principle is applied to most vehicles with two front steering wheels.
There’s an English fellow who did just that. He built one of plywood and tested and evaluated it. I’m not sure if he continued on after that or not. Very instructive though.
I would love to use this on a recumbent!
@@andrewmclean1239 I think it would be fun. I've been fascinated by tilting trike for years and this looks like a great solution.
I have to ask if the parallelogram was truly necessary. Mounting the two inner tie rod links at that central point that actuates the parallelogram shouldn't compromise the ackerman angle and would simplify your design. You could have one mounted below and one mounted above that point and have equal length tie rods.
Regardless. I've enjoyed watching this. Given you have front suspension do you have any plans to add rear suspension or a suspension seatpost?
Hello,
I'm trying a few different things because the steering is not working as desired when it tilts (it does the opposite of Ackerman actually). I think the parallelogram may not be necessary. I'll post the changes in my next video.
The rear suspension is optional and independent of all the trike mechanism geometries. Personally, I don't think it's needed. The front suspension does a good job with the overall behavior.
Cheers!
Very nice to see the bike in action. Do you think the front suspension spring and chock-absorber is really neccessary? Most road bumps will only affecting one of the front wheels at a time and therefore will affect the bike half as much as bumps on the rear wheel. And the rear wheel hasn't got any suspension.
Thank you! Indeed, I think so. Even with mountain bikes I've transitioned to hardtails. I generally feel that the rear suspension is not very needed as the front suspension will make a big difference in the comfort and steering. But this is just my feeling, not a scientific conclusion.
Amsterdam's roads can be incredibly bumpy, particularly in the older areas of the city and where lots of tram tracks are. Those old cobble stones along tree lined canals look really nice, but they make the ride very rough.
Love the build and the video. Is there an engineering/functionality reason why the parallelogram has three links, rather than two? I was thinking that offsetting the steering pulley shaft to the side could allow it to replace one of the links, simplifying the mechanism, but I may have missed something fundamental.
Thank you!
Indeed, I designed it like that the first time as well but it happens that the steering does a circle changing too much and by incorrect proportions the length of the steering rack.
It seems to work really nicely, I'm curious do you get any 'roll steer' that is if you lean the bike(with the handlebars unchanged) does it effect the angle of the front wheels, to me it should be giving you 'toe in' but it may not be all that noticeable.
I think that, when rolling, there is always a bit of the turn of the steering bar. I recently watched this video about turning and rolling that was very entertaining and informative: ruclips.net/video/vSZiKrtJ7Y0/видео.htmlsi=zFVB6Q1szDZ8rC-O.
What is the song you play during the test drive? Very groovy.
Very groovy indeed;) You can find the credits to the artists in the description.
Cheers!
The bowden cable steering looks nice, but i would be really worried about hitting something that kicks the wheel to one side, and snapping a cable. Wouldn't using a chain be more reliable?
Hi, absolutely. There are four cables. Two pulling in each direction providing redundancy so if one snaps you still got the other one to take you home.
Are those lefty axles originally also made from aluminium?
Yesss.
I am not fully convinced. Doesn't the tilt angle depend on the velocity and loaded cargo's weight? If so, the steering and tilting should either be independent or the tilting must have an element that adapts to the speed and weight. Maybe it must even be an active one, but that's not a problem since it's an electric bike anyway.
Hello, the tilt is more or less the same as riding a bicycle. You can lean more or less depending on your riding style. In this case, it doesn't need to be active.
Cheers!
Понятно без слов.❤
Thank you! I like it like that too;)
What do you think about the anti ackerman steering?
I understand that the anti Ackerman is done in some racing cars to cause the outer tire to slip in tight turns in order to make the inner tire grip more by comparison and thus making tighter turns.
Do you countersteer to lean into the turns, like on a normal bicycle?
@@martinansell2105 it's designed to ride mostly like a bike.
Why not instead a plate atop those three bolts?
Hello, this was made to prove that the system works. Now, I'm working on the more sturdy, final build.
💖💖💖💖
Thank you!
when will you be annealing, heat treating, and aging the frame so it is safe to ride?
Even if you used an alloy that does not require post-processing after welding for the new frame, the original bike frame has a 99% likelihood of being made from an alloy that does, so the connections to the old frame will require proper processing if you do not want to risk serious injury from sudden catastrophic failure.
this is a cool project, but aluminum was not a good material choice if you are not prepared for the complexities of working with it. CroMoly steel or Titanium would be much safer options.
Hi, thanks for those suggestions. Can you link to video or documentation that teaches about annealing, heat treating, and aging bike frames?
Cheers!
This center steering rod combo with 2 rods and a parallel pivot thingy is weird, why it needs to be so overly complex ? Old cars like VW Beetle has such system and it is made way more simple using only one lever and 2 rods.
Yes! I remember the Beetle steering indeed! I'm trying to roll back and do it simpler. I'll update in the next video.
Cheers!
@@pedro-neves you can completely remove the 3D part, 2 parallel rods, welded ball bearings and the joining aluminum rod. It becomes more solid, light, and simple. BTW what wheels/hubs are you using ?
@@bobsnabby2298 I also think so. Working on it!
The wheels are awesome! I have a video about them: ruclips.net/video/TVEJODKh5ZA/видео.htmlsi=KGKfLTi3Meyd41Mv
oh no 😢
Why would you need a parallelogram? Just play with the positions of the ball joints.
the paralellogram makes it possible for the three steering points to move in the same plain and the same amount. it would be perfect if it was possible to make the three points a single point but I figure that solution would require some custom machining and is not readily available. so this solution makes things easy.
Is it possible to download the 3d file for that cable steering system?
Hi, absolutely. There is a link in the description to my website where you can find a link to download the whole thing, including the cable steering system.
@@pedro-neves thanks so much! What did the 3d print of the steering part cost you?
@@sempi8159, the parts were offered by JLC3DP to support this project. But if you would like to know the price, you are welcome to download the CAD model and submit in their website for a quote.
Cheers!
Thank you for sharing your invention... I have a recumbent bike that needs two wheels up front... your videos have been an inspiration... now to get my "A" into gear. I made a "one time donation". Can you share the General Arrangement in .dxf for us who don't support yankee monopilisation? Thank You.
Thank you so much! It makes me happy to see my work valued.
Unfortunately, Autodesk Fusion does not allow exporting the model to .dxf with the free version. I exported to step that should be universal to CAD software.
Otherwise, you can download Fusion for free and open the model.
I hope that works out for you.
@@pedro-neves Hi Pedro, silly me.. it can't be dxf as it's 3d... I will try the step file.
@@transistor754 Cool! I had others using the step file in SolidWorks and it was fine. If you decide to use Fusion and need help let me know!
@@pedro-neves Dear Pedro, many thanks, the step file opens in my Rhino Cad software. You have done a lot of work on this project, and I really appreciate you sharing your work! regards, Roger.
@@transistor754 happy that it's working for you. Enjoy;) And thank you for your contribution! Cheers!
✨👍🚴♀️🏆🚴♂️👍✨
32 kilos for a cargo e-trike... That's extremely light.
For reference:
Normal e-bikes weigh around 30kg, e-cargo with front trunk usually around 50kg
and e-cargo-trikes reach into the 60+kg territory.
Indeed, with the aluminium frame it can get much lighter! My previous cargo trike was made of steel and weighed 45 kg without motor or battery.
did you have to pay licence for the daft punk song or was it for free ? used to listen to the whole album back in the days (galaxy express 9999)
Hello, yes, I pay a license via Lickd. I have a link in the description to the license.
I used to listen to them back in the days and still!
Hi Pedro! Thanks for sharing. I would love to connect via email to talk trike builds. What is the best way to reach you? Thanks in advance
Hi, you're welcome;) my email is pncneves@hotmail.com.
flat bearings or bushings would be much better than ball bearings for your parallellogram. ball bearings are absolutely terrible at handling twisting loads like you're applying here, they are only good at handling loads that are aligned with their radius, which is only a very small part of the load you're putting them under. if you replace those bearings with bushings, preferably bronze, your suspension will last much longer before requiring a complete overhaul, and the overhaul will be cheaper to do and require only off-the-shelf parts.
as you have it now, the inner and outer races of those ball bearings are going to separate from each other and spill out all the balls. roller bearings would solve the issue as well, but they're generally much more expensive and don't come in as small of sizes, and they're still worse than a bushing at dealing with twisting loads at low speed.
Absolutely. This was only to prove that the system works. I'm working on the "final version" with proper parts and proper bearings and will show it in the next video. Will not be perfect so I expect some comments there as well;)
@@pedro-neves understood. keep striving, king, just providing my feedback. love whatchu doing.
@@tissuepaper9962 thank you so much for your support!
Hi i cannot find your email adress. Where can i get im touch with you?
Hello! You're welcome to write to pncneves@hotmail.com.