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.

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.

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 👍🏻

Absolutely excellent , love your method , thought and conclusion . I know this is not an out dated discipline but to see it in action what ever the project is inspiring. many thanks

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

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!

This is the most amazing and perfectly engineered cargo bike I ever seen. Great Job!!!

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

the knowledge in this video alone is remarkable. Thank you so much for sharing, from the tool making to actually making the parts. I think I might of said "this man is brilliant a few times".

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!!!!

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.

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,

Well done! You made a very stable turning mechanism, it will allow you to drive with a load without fear of losing control.

Bravo, this is something I have played with trying to figure out just from an intellectual curiosity basis from time to time over the past two decades.. lots of pencil and Cad skedtches…. only to give up when I realized I dint have time to learn all the intricacies of steering geometry… So it’s fascinating to watch you actually do it!

Brilliant! Those welds look like bird droppings, but hey, they work! You installed the disks for brakes, but they are not functional yet. Then you need to install a HUGE bell! 🙂 Thank you, I enjoyed watching.

The way you talk us through your creative process reminds me of This Old Tony.

what made you decide on the length of the main tube that connects the front end to the main chassis?

Great video. The setup adjustment is very clever. I was also struggling with the trail on my diy long john. It turned out a bit unstable on slow speed but very good on speed.

I really like the belt sander idea to grind the notches into the tubes.

Amazing engineering and a beautifully completed job. It works the charm. Well done!

Nice work, but when pressing bearings in you should always press on the outer races not the inner.

Excellent video, I like how you show all the details of every step. Thank you!

Im learning some great language about steering by watching this thank you for sharing! Great build!

Superb, really well thought out and well made with relatively simple tools - this is proper iterative engineering!

What an amazing development platform, great work!

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 🙂

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.

I admire your minimalist skills!

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!

Looks great! Looking forward to the tests video

Enjoyed the video. If you are going to brake the hub you need to have your wheels built with a cross spoke patten to resist the torque. Using radial spokes and hub braking will result in early spoke failure due to bending at the nipple. I hope that is helpful

Great skills, design, workmanship and execution!

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 👍

I like to see DIY projects like this. Turned out really cool, looking forward to see brake calipers installed (how to). "Let's hammer this Pumba Pumba" sub+1

Nice project! Happy riding.

This really is outstanding work. Very impressive.

this is incredible, lovely video and amazing skills! i've always wanted to make my own bike and i've always wanted a cargo bike!

WOW! What a project.

44:30 that's some crazy flexing and shimmying of the front inside wheel.

Amazing!!! I a kind of dreaming of making a recumbent one like this, you make it look feasible. Inspiring!!!!!

That's some remarkable engineering! 🙂

Enjoyed watching your work!

Absolutely brilliant, the whole thing beautiful

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 really like all the jigs you use.

congratulations for your nice design! I have been building a few tilting designs and so far nothing is "quite right". You should consider using some kind of load on your test mules. In my experience steering geometry on any cargo bike is heavily affected by front axle loading. While it is important for the bike to ride kind of allright without loads, on any longjohn type design steering is always very compromised until you load something. Have fun tinkering!

What a cool contraption :D

Pedro, you have done a super job on this design and I am amazed that you managed that with the limited equipment and work area that have. One suggestion, you could secure the outer race of the bearings in those tubes quite simply putting 3 or 4 light punch marks on the outer side of the tube in which the bearings fit then as you press in the bearings these pinch will solidly grip and retain the outer race, also I noticed when you the shafts thru the inner race the appeared to be a slide fit ,not good you do not want the shafts to rotate on the inner race which would happen if dirt and grit get in the ball race this will quickly cause the shaft to wear very quickly. However if you use shielded bearings( no dirt) and determine the position of the shafts within the bearings first then put three light punch marks at equal distance around the dia. this will make the shaft a good press fit in that inner race and prevent loose shaft rotation in the bearing. I look forward to the next video ,I hope to start on some framework for rev. trike in the new year I am 75 and need to do this soon or I will run out of time. GOOD LUCK.

That wood jig is genius.

Keep doing what you are doing. Don’t worry about steering linkage or wobbly right tire. Algorithm pushing you. Good luck.

Awesome build. Thank you.

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.

Achei incrível seu vídeo, Pedro. Muito bom mesmo. Deu para aprender bastante.

Very impressive 👍

Awesome and inspiring! Thank you for sharing!

Can't wait for the next video

Looks pretty cool.

another point worth playing with is the height of where the track rod end attach to the steering control arm, as you roll the bike you will be getting some steering input adjusting that height will have interesting effects.

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?

Amazing Work

To make your own hubs, mill 4 high corners with a round boss with a through hole in them as part of the first operation. Then clamp a piece of aluminum on the table and mill it into a nest with 4 threaded holes and mating round pockets. (threadmilled). Do not move or upset the nest and lightly bolt the parts to it one at a time and finish them. This will hold position during the flip. It is even possible to 3d print the nest and cut the dadum to get the precision you need as long as you take light cuts on the hubs. I print the threads right in the parts.

The toolings are the most impressive in this build. You should make a video explaining your tooling zigs because they are not off-the-shelf tools.

great tut vid

Just AMAZING!!

Wow what a great Project good job buddy looks amazing

Amazing Pedro!

Kudos and Love from Latin America my friend, amazing work!

Super video! I am full of admiration for your skills.

Congratulations on your workmanship, You are very dedicated. While I do experiment on the same lines, I must say that I never reach the same level of workmanship as putting ball bearings in the wish bones. Well done, and wish you all the best. There is a lot of variables operating at the same time, but I pay a lot of attention to the relation between the contact point of the wheel on the ground and the projection of the steering angle on the ground. This relation can come up with self cantering, instability , and hard steering and oscillations. The narrowness of that trike needs weight to be shifted around corners as otherwise the Centrifugal force will take over . At my old age I lile it to be a little wider so that the whole lot is stable when stationary and at slow speed which is all I can achieve, Congratulations once again. What you are preparing for at 6:10 is called " Rose-welding".

The whole design would make a killer reverse tilting ATV trike frame. 3 hub motors, battery, controller and controls and it would be a lot of fun.

Huge Props! Cool as hell! For your next wheelbuild I'd like to suggest a smaller hub radius and 2x lacing! -Radial lacing doesnt like the torque from disc brakes. -Have you seen cannondale's lefty hub's? Looking forward to your next video!

well done for both workpiece and video.

Great job. Thank you for share.

looking very interesting !

Acredito que sejas lusitano. Excelente trabalho, fiquei pregado ao ecrã acompanhando cada detalho. Parabéns pelo video e pelo projecto.

Fantastic work, Pedro! Amazing to watch your process. I have many questions, but I am most curious about how this will handle with load. It seems you're building this as a bakfiets-style bike? Will it handle differently when you've got the bucket on it? Do you need to change your design for that?

A very thoughtful build. Is there anything preventing you from leaning left while steering right?

That is great work. Wow!

Dat ziet er fantastisch uit.

멋집니다 ! 당신의 능력이 부럽습니다. from south korea. ^^

Great teacher Pedro Neves.

this is awesome, thanks for sharing

very nice build! i will be waiting for the full suspension electric version :)

Bagus.. good job.

Brilliant work

In the 1990's I was in an electric car racing club in HS. For my senior project I designed a trike with active camber front steering. It had a disc that the steering mounted to, as well as the upper control arms. The control arms would move in proportion to the amount of steering input. At the time we raced fairly large karts with 2 lead acid car batteries for power. With 20" bicycle wheels we had to slow down severely in the tight corners given our moving mass. If we went too fast, we would taco the rims. By this point in my high school career, I was a fairly disengaged loner who would rather be at home playing Half Life. I was given the opportunity to build my design, but at that time I was intimidated by metal fabrication, and very self conscious about my welding skills (even though I became a professional metal fabricator later in life). So I never built it. Teacher aide even tried to flunk me on my senior year for not taking the initiative, but I didn't care. I was over it. I had already competed in an international engineering competition a few years prior, so I just wasn't interested for whatever reason. I personally think it was just being a loner in a very cliquey small town school. I didn't feel like I belonged there.

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.

Top Class, Impressive

Awesome! How did you calculate your steering arm lengths? I’m currently building a cargo trike and have been waiting to see your process in more detail, especially your steering geometry. Great design!

well done

You can consider increasing the balance rod. If you can adjust the inclination and the bundle angle, it is more perfect, congratulations!

So awesome, ll do it too

Grandios!

Fabuleux WORK..

Man this could be super useful for carrying things!

Crazy awesome design! Only one thing I noticed that could be improved, I think the shock linkages could just be solid mounted to the A-Arms i think the secondary pivot they have is keeping the shock from really catching the forces. Also would there be any benefit to adding q spring to have the suspension pivot back to center?

Bravo........I made a three wheeler......on turns it was a two wheel.........wow.......looks like pod racer.......cheers

Buen trabajo , Pedro

awesome

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