The reverse trike you're designing is going to be used to design future reverse trike bikes. This video has tons of value, even the theory of wheel alignment is same with cars.
on the welding jigs, if you drill a hole through the plank where the tubes need to be welded you can easily tack 3 points without any problem and movement of the pieces
The carefully selected preview for this video definitely did its job. The result, like the process of creating this work of art, is amazing! I'm delighted, you are unique. A person who knows how to design parts on a computer and then is able to bring them to life independently. This is a video from the category of “save by downloading to your computer so as not to lose” p.s. I translated using Google translator, if there are any mistakes, I apologize. Greetings from Russia!
Your comment is very kind, thank you! I'm glad that you liked it and want to save it;) And, there will be several developments to make it better in the future;) I hope you continue watching the next developments. Greetings from Amsterdam!
A 2nd steering arm will get rid of the constant left right wobble in the steering. Instead of push or pull, it will become: push+pull, which results in less/ no wobble. I had the same problem. The second steering arm was the solution.
Thank you very much for the suggestion to improve! I agree with the push-pull situation. I've been looking forward to upgrade to cable steering which would be pull-pull as well. Let me know what you think.
How would it work if you just use a bike chain instead of rods? Might be more susceptible to road bumps.. My other thought would be, if the rods were bent at each end, so that the bulk of rod length was under frame, it would be out of the way.. If you use the bent rods, you could make channels on the frame for them to slide in, so they wont wobble.. Also, I was wondering if this type of tilt steering could be adapted to make a self balancing system.. Using some kind of inverse feedback of the centrifugal force of the turn... I am thinking that people in a car going around a turn are pushed in their seats to the outside of the curve. If the bike seat has the same force, then linking the seat's left/right shift action to the tilt of the wheels, could possibly make auto correcting self balance system..
@@ghicione , me too! I'm also inspired my other makers that share their work on RU-vid. Here's a great example of making a cable steering: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Ie3uTHq4LSE.htmlsi=tsnqfaxDZjOhNZyT
Plenty of caster is always desirable, as it makes for self-centering steering, and easy no-hands riding. Most people don't understand why it's really hard to ride no-hands on a downhill mountain bike: the angle of the forks is a lot steeper, so there is much less caster effect. In cars it means you simply let go of the wheel and the car straightens up automatically.
I love this video!! your way of waalking through the process is awesome! Got into the video just to see the end result but I was hooked watching the whole thing, keep making such great videos!!!!
Hello, thank you very much! And you guessed it;) One of the next tools on my list is a TIG welding machine, so the next metal project that I share will be better for sure;) Cheers!
I love the engineering here. If I lived in your country, I'd ask you to build me a reverse Longstaff trike with 650b front wheels. That song at the end is a jam, got me dancing in my kitchen.
all these angles are subject to regular upkeep on a car, and i wonder whether that is because of things bending, or bolts coming loose. munro calls bolts threaded un-fasteners. i think that's quite clever. once you have a good setup, i think it might be preferable to have them fixed in place, even if that means they are no longer adjustable. unless thoroughly rusted together, all those bolts there could lead to considerable headache i think
That's a good point - why does a car steering become misaligned? I would definitely prefer to not have to regulate things from time to time. But, in this project, the regulation also has the purpose of finding the best geometry. I'm doing many tests now with different geometries and will share a video about that. Once I have the bets geometries, I will build the trike with less adjustable parts. Cheers!
Thank you! You can do that. I'm designing it to ride like a bike. Also, in a bike, you can lean outwards instead of inwards in different types of maneuvering. Here's a video that I like very much about this topic: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-U1mSavQ_DXs.htmlsi=fa4YiHRvLD3X9abC
Interesting project thanks for sharing - did you simulate the shock arms to wishbone interface - they look like they would be highly stressed at the weld interface
Hello, thank you! Good point! I did not simulate but while I was building It did look like that. On my next design I'll make sure that there are two plates coming from the wishbones and not just one.
Hi amazing work and I love that you do everything nice and easy, not rushing anything. and nice camera angles. That must need some patience. How long did this build take in total?
Thank you very much! This build took months! But I had a full time job and was doing this on my little free time. So I cannot share an accurate account of how many hours. But, since then, I started working for myself;) And I'm dedicating about 50% of my time to the RU-vid channel so I'll have a more correct accounting of time spent in the future. Cheers!
Astounding work, something i have thought was worth investigating for quite some time. Your documentation and attention to details are far and above my skills. Just one question, is that right front wheel really that far out of true? Or is it a trick of the camera. If not the camera, how can you make accurate measurements of toe, camber caster etc?
Thank you very much! And you are right. The wheel was hit and is quite bent. I will make sure to true it before the tests. To make accurate measurements of angles I'm building a few guides and I'll use the hub and disc as reference. So: measure the vertical angle of the hub for camber and for Tow I'm considering LEDs fixed in the hub pointing to a board in front of the trike (same principles as alignment racks for cars). I'll try to be precise with it.
Thanks for the good video: 2 questions. Which tubing material do you use and where do you find the end element of the triangle wishbone? The rotule? Or I don't know how to call it?
Hello, I haven't felt under-steer so far. I designed having Ackerman in consideration and 0 scrub radius so there's no scrub when turning. I will also do some tests with cargo to see if the steering (and other components) work well. Cheers!
Hello, I'm designing this to be a cargo trike. The cargo bay will be fitted into this long tube extension. I haven't fitted the cargo bay yet because I'm still working on the mechanics of suspension and steering. Cheers!
to me it would be better changing the steering by having rods that run to the front wheels connect to the handlebars on an angle it just doesnt look or ride smooth to me the way it is.
I want to make this except for a wider front wheelbase. Would you suggest wider wishbones or a wider linkage? Sorry if my terminoligy is not correct in advance.
Hello, well this is a matter of choice. So, wider wishbones will give you more travel (example: sand rally buggies). A wider linkage and shorter wishbones will give you a shorter travel (example: road car). Hope this helps;)
@@hogginger2982, I think the size I made is a good mix as well. In my next trike video I will explain all the sizes and why, and I will provide a very practical explanation on why I chose this exact size;)
Hello, well, as I understand it, scrub radius (positive or negative) will cause one or both wheels to scrub when turning. I understand that this is done in cars but on a trike meant to go no faster that 25 km/h I felt it would be strange to create stability by scrubbing tires. So I chose a geometry that makes a smooth turn (I think).
@@paweskiba3042, this is the entire designation of the tires: "DeliTire buitenband Freestyle S-199 20 x 1.95 (54-406) zwart". Unfortunately, the seller no longer has them so I cannot send you a link. But they have the same exact tire in blue so here it is. Hope it helps: www.internet-bikes.com/en/140513-delitire-casing-freestyle-s-19920-x-195-54-406-dblue/
Amazing: you show how you use the machines you built from 3D printed and CNC-cut parts to make the parts for the machine you're building. This is inspirational. You take bootstrapping to a higher level!
Thank you so much! Ya, I don't have much money to buy machines so I make them;) And I make the machines fit for the purpose so it's all very custom built;) Happy that you enjoyed it! Cheers!
Dude... you're just a perfectionist! Everything you did, you did it precisely. 😂. Very very good work and what an ASMR video to watch. Thanks for sharing your work 👍🏻
This trike looks great! Awesome work there good sir, very well done! :D A leaning trike with suspension is no easy feat to pull off, quite impressive! The idea of a second steering arm suggested previously is a solid solution, but it doesnt have to be a "chunky" piece like a mirror of your current singlesided version. It would suffice with a bowden cable, like a bike brake cable and tube. The goal is to tension the system in both directions, eliminating any slop/give in the steering mechanism, and you only need a small force to accomplish this. You can easily fabricate some wireclamps and tube end sockets with a drill and a hacksaw.
Just curious. The block that you connect your steering rods to (37:10 minutes into the video) shouldn't that be an arc, a semi-circle, so the inner wheel turns more in a curve than the outer wheel?
Hello, that's a good point;) Actually I've been having this remark a lot. I am respecting the Ackerman geometry. In minute 46:03 this can be shown when I do a tight right turn and the inside wheel turns more than the outside wheel. But in the design this is not obvious because that block is straight. But, the block is actually a few centimeters inside from the center of the turn radius of the wheel. Sometimes things look straight but they are not;) Cheers!
Not exactly. Although tadpole trikes do handle better than delta trikes, they have the same or similar risk of tipping at high speed- if not simply spinning out, which is more a possibility of one with actual power, like a Can Am Slingshot. Tilting gives a trike closer dynamics of a bike and gives it better handling, like a Honda Gyro for example.
Hello, this does not need a differential because the front wheels are not powered (the trike is powered via the back wheel). Because it only has one wheel powered (in the rear), it does not need a differential. Cheers!
I love what you are trying to do but it’s SO frustrating watching you reinvent standard bicycle manufacturing techniques with inappropriate woodworking and 3D printing technology. I just want to shake you and say, THIS is how you notch a tube, THIS is a trammel, make your jigs from STEEL not wood, use VEE BLOCKS on a fixture table, it’s TADPOLE not “reverse”. And I can’t take anyone seriously who can’t take the time to true their wheels. It’s painful watching them wobble along. I love what you are doing and how you’re documenting the path but I can’t watch. You should watch some Paul Brodie videos or something first. Or even my tadpole trike construction videos.
Hello, I appreciate the complete comment, even though you didn't like the video. True you are about the depth of my knowledge on mechanical manufacturing. I think that the part where we disagree is that I think that there is value in sharing how someone with limited knowledge and tools makes something. I think that there is value in sharing the process and the iterations. I also think that most people watching my videos know this and don't mistake me for an expert. As for the "tadpole" I have to say that I partially agree. Though a bike maker may call it a tadpole, there is clearly more people on the internet calling it reverse (not that this makes it right, just arguable). I'm actually an electrical engineer and a mechanical hobbyist. This is a hobby, and thus I started sharing mechanical stuff. But, I have plans for sharing videos about electrical engineering. These will have more depth of knowledge, for sure. I would be happy to get some constructive criticism on those as well. I watch almost all Paul Brodie's videos. That's next level. Maybe one day I'll be almost as good. But there's a process to it. I also just subscribed to your channel and will learn something from it for sure. Cheers!
You have several errors in the assembly... 1 radial spoke if you are not using rim brakes is the worst option. 2 brake rotors are not aligned correctly - check the direction of rotation
I have the same idea like adjustable camber and castor, and variable ride height without changing camber angle. so that the wheels can be as perpendicular as possible to fhe ground. that should increase the ride quality. i like the indian mysic though at the end.
Wow nice project .Have U seen the ''TReGo'' bike extension. I'm looking for a simple build. But hard 2 find. U sound bring it on the market. I think there is a lot of intrest.
Ya, I like the steering extension from TReGo. Nice that you can use the old bike. There is definitely space in the market for more. I think cargo bikes, trikes and quadricycles will play a huge role in cities in the next years.
ive been watching your channel since 2022, when i was in university studying automotive and transport design i fell in loves with bikes. my final year project was going to be a solar powered ebike with three wheels. i really hope you post the 3d files for this newest iteration because i believe that titanium 3d printed tilted front mechanism would be light and strong enough aswell as nible for a 100kg cargo bike ( the continental recumbent was the project name) seeing you create this made me believe its possible so i will be posting soon as well, i hope you subscribe and one day even collaborate kind regard. long term goal is to enter the suntrip solar race competition
Hello, thank you for your comment! Happy to read that you are interested in building this kind of vehicle and even entering a race! I posted some of the 3D files of this latest iteration. You can find a link in the Description of this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-q2GTZd428vM.htmlsi=tXTEM1xZTsAcWlEP. Makes me super proud to know that my build also motivates you to build. Please send me a post when you publish your creation! I would love to see it. Cheers! And good luck with your builds!
So Pedro, you just made a trike that Florida needs in the worst way with their slanted roads that also are home to bike lanes. So if you do these trikes in the conventional format, I'm seeing you sell them to bike shops endlessly. Its a uncomfortable feeling on a slanted road on a trike. Yours solves that problem.
Thank you very much! I'm improving the design on every iteration and I already have some improvements in the pipeline after ths one. One day it will be good enough to be a product;)
For an amateur bike builder you have produced a good working example. Ok you welding technique is open to debate...as well as some applications.. methods. But heyho your not a professional fitter or welder... However, you computer and ideas are above the norm. Great little project...with so much to develop and improve... Very interesting... Look forward to some updates... And maybe a discussion.. You get my vote if approval... Simon a Brit in Spain 👍
Thank you very much! My welds are for sure not great. I'll buy a TIG machine soon before working on a project with a lot of welds. I'll do better with that. Regarding the improvements, this is the point, make one, see what can be improved, learn, make another;) Cheers!
Ok, but what is the idea of this bike, why is it so long? if that is cargo area, you should have weight on it when testing, now the front is very light, all the weight on back wheel.
Uauu, good one! When I'm in the shed, I often listen to podcasts. This one was hosted by Joe Rogan. I don't know much about Alex Jones but from this talk, he seemed like a funny guy;). I don't know much about him but from what I just read on the first results from a Google search, I wouldn't particularly choose a podcast with him. But if Joe Rogan is hosting, I'll listen to almost anything. I also like to hear from different people.
maybe you should consider calculating the Ackerman steering geometry. the outside wheel should make less angle when turning than the inside wheel. because when turning, the outside wheel makes bigger turning radius than the inside wheel.
Hello, thank you for that! I did consider the Ackerman geometry. You can see in minute 46:03 on a tight turn that the inside wheel turns more than the outside wheel. The reason why it seems like I doesn't have Ackerman is because the steering connection is straight. But, it is a few centimeters inside of the center of the turn radius off the wheel.
I like you videos. But your voice doesn't has life to it. It might not feel like anything to you, but the viewers might get the impression that you don't care.
Hello, thank you for the constructive criticism! I do care, and I do agree that my way of speaking is not great. I had noted that this needs improvement, and your comment just makes it more clear.
Hello, I use Autodesk Fusion 360 for CAD and CAM. And then the CAM exports a file (.nc) that I use in my machine that runs open source grbl. I have full instrauctions to make a CNC machine run with grbl here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-12zLTDU7ML8.htmlsi=XUIMCxp9-v76aO5d. Cheers! Let me know if you have any more specific question if you need to know how to transform design into CNC movements.
like this video!! the way you design This process is amazing! Well done, I watched the video just to see the end result but I was hooked when I saw the whole thing, I'm currently building a cargo tricycle and waiting to see your process in more detail,
Thank you very much! It's great to think that these videos help other maker with their build! Just as I get help from videos of other makers. I'll keep on testing and improving and sharing the lessons learned.
Трайк хороший, но по моему нет угла Акермана, схождения и развала колёс. Как же поворачивать на перекрёстках, ведь они идут по разным радиусам? Или трайк рассчитан на езду по городу, не долго и без нагрузки (ну, это врят-ли так как грузовой трайк)? Иначе будет большой износ покрышек. Я рассчитываю на большие расстояния, ну скажем на 2 000-3 000 км (минимум) и задумываюсь. Как без них то?
Hello, you are right. Some of those geometry details are necessary. I've been doing a lot of test with different geometries and my next video will be about that: Camber, caster, toe, Ackerman, steering ratio. Also, I built a cargo bay and I've been doing tests with cargo as well;) Cheers!
Why did you make your front wheel hubs so massively overbuilt for the project those are like the size of motorcycle wheel hubs a standard pedal trike Hub or entire wheel assembly would be perfectly fine they're designed to slip onto an axle so they would go on to a front steering spindle just fine it would have simplified your build and made it easier to replace and repair and they make those with disc brake mounting holes already in them honestly that's the route I would have taken
That's true. I have been thinking about this quite a lot. The reason that I designed it this way is that I want it to be able to carry a lot of cargo, and thus I prefer to overbuild. The second reason is that I want to design as closely to how a car is designed because, at some point, I'll start a small car build. Cheers!
@@pedro-neves oh okay with hubs and spindles that big and strong you could probably Carry close to 800 lb without those parts particularly bending or breaking I don't know about the rest of it seems pretty robust though
Hello, you are right. Bikes are awesome! I considered that a trike might be better for a cargo vehicle because there is increased safety in 3 wheels (front wheel slipping or hitting a sidewalk will probably not cause a crash) and with 3 wheels the vehicle will be more capable of carrying cargo.
Hi Brian, thanks for asking! The next video is about the geometry (so I explain everything about the measurements of the trike) and I'll also share the drawings and 3D files together with this video. Cheers!
For sure! The vise I already fixed since this video;) and the threads I need to lubricate more and also I think I need to have the rod with less diameter. Cheers!
very interesting, I've always been attracted by the tilting trike geometry... will be looking forward the following details about geometry and your take on the result. what is the current weight of the vehicle ?
- то ти је без везе што правиш - дај ово да има смисла _ то исто али на 4 точка но ширина као нека рамена или кукови - на то стави батерију - да се може возити и по киши и свако
You are right, I would like to make a build that has a cover to ride in the rain. But, I wanted to make it narrow so I can still navigate through traffic and be bike path friendly so I thought of the tilting mechanism. I think it's harder to make it tilt with four wheels so you would have to make it wider. But, I'm pretty sure I'll make a four wheeler some time in the future;) Cheers!
It tilts, it can fall over. Honda Gyros have a lockout lever to use when parked, so they don't tip over. You could very well drag knee on a Gyro, they lean so far over.
Hello, 1 - the frame is this long because it will be a cargo trike. I will fit a cargo bay once the steering and suspension work is done. 2 - It tilts so it would rest at a position of 30 degrees from vertical. I added the stand so that the weight rests on it instead of resting on the wishbones.
just an observation - because of how you did caster, adjusting it also introduces pro dive into the geometry. it will feel soft and encourage more front weight transfer, and could make the bike feel even more twitchy esp. at faster speeds.
@@pedro-neves you can move the caster adjustment in the hubs if you want to separate the dive adjustment and caster. you may not feel the pro-dive right now since it's relatively light but it will progressively be evident as you load it with cargo. you can also check out suspension systems of RC race cars - the physics and engineering in those are the same :)
Very nice. Excellent work. I'm here thinking I wish I had the patience or actually the drive to make such a nice project. I love it. Thank you for sharing
Hello, thank you for asking that;) the purpose of these videos is also to create a way for all of us to learn. On every iteration, I make something, show it and explain it, I get many comments teaching how to improve it and then I improve it and try to share so that we all learn. In the next video, I'll try to explain as best as I can all about the geometry. I hope this helps. Cheers!
getting this done with gasless mig welding is an achievement. however some of the beads are really on the edge of safety, outside of experimenting. you might not see it that way yet, but with a bottle of argon you could save an incredible amount of time grinding and brushing off the flux that hides defects. my own welding experiments have run on one B50 bottle since the covid shutdown. i'm going to have it refilled at the end of this summer. it was short of 500 bucks for the bottle purchase and the first fill. also gas welding means you can tig and mig, and both do less sparks than gasless. i'm already checking the next video 🙂
I totally agree with everything that you wrote. Actually, I consider the welding to be the lowest point in quality of this build. And you are soooo right about the grinding! In the end of this project, I was so tired of it. The next investment for my shop is definitely a welder with gas. Cheers!
Each has advantages and disadvantages. I went to ICBF (International Cargo Bike Festival) last weekend and tested a bunch of trikes and bikes. I'll do a video explaining what is best of each (in my opinion).
you went to all that trouble to make jigs and brackets for your work, but you don't have a welding bench - is there any particular reason you are welding on the floor? why did you make that massive hole in your frame to support the steering arm? this is where it will break, when you hit a bump with a load. surely a collar would be better?
Hello, very good points! 1) My workshop capacity increases gradually over time. I have a 3x2m shed to do the mechanical work so I weld outside. Actually, one of the next tools on my list is a TIG machine so that I can weld inside. 2) Very good point. It has to go through, because an axle goes through. The steering extension connects in the bottom and the steering links in the top. Once I close this design, I'll weld the cups to the frame. I believe the cups will make the frame as rigid as if there was no hole there. Cheers!
Isn't it great to be able to have parts manufactured professionally so you can focus on the design. Maybe I missed it, but how do you avoid bump steer?
Hello, some parts I cannot manufacture with sufficient accuracy (such as cut metal sheet). But other parts I can. Honestly, I like manufacturing. My purpose is actually also to improve and increase my manufacturing capability and quality. Regarding bump steer, the steering links are pretty parallel to the wishbones (vertically) so bump steer will be low.
@@pedro-neves I admire how you (I imagine) visualised this in your head, including the dynamics of the steering/suspension. Nice work! Manufacturing accuracy and repeatability is a function of the machine/process. Hopefully your channel grows sufficiently to attract sponsors that send you their gear to try.
Hello, I've tried several reverse tilting trikes and liked the way they ride. They are a bit safer than a bike, particularly in the rain and can carry more cargo. Cheers!
When making the center hole on your wheel hubs, why not drill all the way through from one side only and use a spacer between the two bearings? That's how motorcycle wheels do it.
Interesting, and impressive work! This is something I have been thinking of, but the path from thinking to action is long. How close to the feeling of a two wheel balancing bike do you get?
Thank you! My intention is to make it feel as much as possible as a cargo bike (and I think it does) with the added benefits of decreasing the chance of crashing and ability to carry more cargo. Cheers!
Hello! The thing is: the spacer has to be fixed to the hub or else the bearing assembly could slide out off the hub. Thus, I mill on each side so that the spacer is part of the bigger part. Hope this explains my choice. Cheers!
@@pedro-neves Just Use bigger Washers wich cover the bearings completely, so they wont come of. Use a Spacer that sits on the inner Ring of the Bearings and protect the bearing from getting pressed together and get stuck while tightening. its the same system in wheels of modern rolerblades.
@@udufbxsixn, thanks! I get what you are saying now. I'm actually working on a new hub design (bearings in the wheels) so always good to have some suggestions and feedback;)
Hello, that's a very good point. I designed the hubs to hold the disc brakes but this is not the final design of the knuckle and for that reason I haven't created the supports for the calipers. I will install new knuckles with support for calipers for sure;) This will be on the next version.
@@pedro-neves thumbs up there then. Here in the UK not having a front brake breaks the law. Really interesting project though. I have been dabbling with a leaning "tadpole" recumbent trike for the last 25 years but haven't had time to start building.
@@emmabird9745, thank you! Ya, definitely don't want to go without front brakes;) I hope my videos help inspire you to build. I will continue with further iterations of this vehicle and share the new versions.
Same as I said to Phil Vandelay: I hope you'll always succeed professionally. People like you should always be hired in whatever they want in this area of expertise. It's hard to do all you do, but also document it and make a decent video out of it. That front component is a masterpiece. As someone said before, it might be copied by cargo bike builders. I just hope they reach out to you to be part of the development process. Cargo bikes are the future and hopefully, they'll replace cars and vans for most use-cases in urban areas. On the other hand, I'd love to see how you install the cargo bay and carry stuff around. I'm not sure if the last big hole you made for the steering is going to compromise the structure once you carry heavy loads and hit a pothole. Take my point with a pinch of salt because I studied industrial engineering but haven't performed as such for a long time haha.
Hello, your comment is incredibly kind, thank you so much! I am a big fan of this new generation of city vehicles. I believe this is the future - small, affordable, designed for the city. I already installed a cargo bay for the tests that I'm performing. Looks very nice;) The hole in the front has been structurally corrected because I welded a vertical tube for the steering. I am now in the process of tuning the geometry and doing multiple tests. I'm working on a video for this. I hope you watch it;) Cheers!
Hello, I'm designing it for being a cargo trike. So, it's long so that I can fit a cargo bay in the front. The reason why I want two front wheels is to make it safer in the rain (less chance of falling if one wheel slips or hits a bump) and also I believe I can design to carry cargo more easily if it has two front wheels. Cheers!
