Tilting Trikes Part 12 - rolling chassis with back wheel and crank

Another update on my tilting velomobile trike project. This time, I have finished making and assembling the rear wheel so I work on machining the rear drop-outs and fitting the wheel to the frame. I also make the bottom bracket fabrication and fit the crank and chainrings to the trike.
As well as an overview of this progress, I show you how I made these new parts, with footage of the milling, turning, welding and general machining and making processes I used.

[@MetalMachineShop]

Hope you like the latest update. It's always great to hear your thoughts or questions in the comments.👇

[@sivodesilva9866]

I hope nothing happened ?because why are you not making more video's???o hope to hhear from you...just a sign off life would be great..best wishes from another trike builder

[@amtb70x7anunkwn9]

Amazing Outstanding Workmanship Mate!

[@pedalajones]

I am more and more curious to see your velomobile moving on the road! Very good and congratulations for your workshop!

[@MetalMachineShop]

Thanks! I only hope it is rideable!

[@thechumpsbeendumped.7797]

I’m loving this series and can’t wait to see the finished buck, let alone the finished composite vehicle.

[@MetalMachineShop]

Let’s hope we get there!

[@Maker1000]

The amount of craftsmanship here is incredible ! Thank you !

[@MetalMachineShop]

Thank you my friend!

[@AuroraCypher]

Thank you for taking your time showing us your build process, been looking everywhere for this. Keep up the good work sir.

[@CalMariner]

These videos are brilliant. You are so thorough and consider not just the basic design, but approach it with a lot of thoughts toward how it may be manufactured and adaptable for different users. Not seen in a lot of garage mechanic builds.

[@MetalMachineShop]

Thanks! Glad you find it interesting!

[@CalMariner]

@@MetalMachineShop Absolutely. I'm an engineer without a garage, and so just live vicariously through your shop. Originally was looking for people making a tilting reverse strike for gravity racing, but super excited to see the bike-powered part of yours. Seriously, you are very gifted - I am sure that there is lots of trial-and-error, but your process and meticulous nature are wonderful to watch.

[@MateoNomas]

Waiting excited for the drive train, steering mechanism and seat fully installed! Inspiring! Congratulations and thanks so much for sharing!

[@Brummiejohn200]

I'm enjoying the build videos keep them coming, atb John

[@MetalMachineShop]

Sure will, thanks!

[@LeesChannel]

Uh oh, I hit the last of the videos! Please do regular update videos on your project, it would be nice to see it regularly and hear your thoughts, progress, and plans for what's next. Anyone who has made it past part 12 is very interested in you and the project, so you don't have to feel like you have to jam-pack every episode before posting an update. Also, KZbin's algorithm priorities channels that upload at least once a week on a regular schedule, I'm not sure if that's possible due to real-life commitments but that would accelerate the growth of your channel. After the project is completed you can merge all of those parts/updates into one large "full build" video for people new to your channel. Anyways, I subscribed and I'm excited to see future updates!

[@MetalMachineShop]

Hey thanks for the comment, it’s always great to hear from people interested in the project. I’ve got another update on the way soon now that the build is nearing completion.

[@simonbertioli4696]

Very interesting... I like the idea of sculpture over the trike... I looks good... unique.

[@MetalMachineShop]

Thanks, the frame is really not stiff enough though!

[@tonyjenkins7156]

Superbly executed.

[@TheKnacklersWorkshop]

Hello, Nice progress and it wont be long before we see you test riding it I am sure... I don't know much about recumbent style bikes but as a British Cycling coach I would suggest your legs are a little stretched but as you've not done the seat positioning I feel sure your will get everything setup in the fullness of time... Keep the videos coming I am really enjoying the series... a big THANK YOU! Take care. Paul,,

[@MetalMachineShop]

Yes, you’re right about the leg stretch, that will be solved when the seat is fitted. Glad you like the series, there is more to come in due course!

[@HIDPCM]

Wonderful update!!! congratulations!

[@MetalMachineShop]

Thanks!

[@Pushyhog]

incredible! love this channel!

[@MetalMachineShop]

Thanks buddy!

[@2pi628]

Very Nice! Thanks for posting!

[@startcherif]

Very nice video

[@roman_abelardo]

Excelente trabajo 👌👍🤗👋🇦🇷

[@MetalMachineShop]

Thanks!

[@bambukouk]

very nice, thank you!

[@MetalMachineShop]

Thanks!

[@joell439]

Getting close

[@MetalMachineShop]

Yes!

[@patrickmckowen2999]

👍

[@Pushyhog]

i always thought about crank out frt.

[@rockrl98]

you're making the dream man! too bad I suck and don't have a workshop :d

[@user-pr2jw9dg5w]

본 영상으로 인해 정말 많은 공부를 합니다. 궁금했던 생각이 해소됨니다.

[@mspeir]

I love the organic metal body! 🤔🤣

[@firstnamelastname9013]

👏👏👍👍

[@VEC7ORlt]

Interesting that you've made the dropouts at an angle, instead of parallel to each other, that way they could have been just cut on a laser, given that is available to you.

[@MetalMachineShop]

Well they weren’t supposed to be at an angle! I had to make adjustments as the laminated seat stays didn’t end up quite as parallel as planned. Most of the bits in the vid were made pre-CNC availability, by the way😉

[@urnenfeld]

That's taking its shape already! wondering how the chain is going find its way... admire the whole toolset and machinery... I wonder how many thousands£ are there....

[@MetalMachineShop]

The chain will have to be routed under the seat via two idlers - not ideal but there's no alternative!

[@richarddavies7728]

@@MetalMachineShop The alternative is to copy the drive train from the Russian S-327. I have been wanting to build a tilting version of that for a long time.

[@Monsieur.Nobody.]

That is freaking amazing mate! Love from Australia. Let me know if you'd like to design it in a full fairing carbon fiber electric assist bike! that would be awesome! I don't have the tools yet but I will be prototyping one soon... If we join forces, we can create a legit business out of it! Any one in the comments would buy one if it was made to order?

[@fonwoolridge]

Fantastic! youre nearly there mate! Have you thought about electric motors too?! Or is that defeating the purpose of what youre doing?? I actually made a 3 wheeler kite buggy recently, vid coming soon, your vids helped inspire me! If Im really on the ball - hope to make an electric tilting trike soon.... But unfortunately, my metalwork will be nowhere near yours! Great job sir!

[@MetalMachineShop]

Hello again! I'm definately considering a mid-drive motor for the final version but probably not for this prototype.

[@JohnR31415]

Backside looks a touch too far back (or down). Good starting position is to just be able to reach the pedal at its furthest position with your heel. Really looking forward to seeing how this takes shape. The front wheels were further forward than I had envisaged, but I can see why…

[@MetalMachineShop]

Agreed - when the seat is fitted it will be adjustable so leg position can be optimised.

[@JL-lh8kl]

Very nicely designed and thanks for sharing! I suspect rather large loads to pass through the bottom bracket. Would the four smallish bolts be sufficient over time? Just my two pence?

[@MetalMachineShop]

Thanks - the BB probably needs some additional locating pins for security. However, this was just a prototype and not designed to last!

[@JL-lh8kl]

@@MetalMachineShop Keep up die interesting engineering please!! Your videos are really captivating and easy to follow

[@MetalMachineShop]

@@JL-lh8kl I will!

[@joelcumbest3011]

if you were to epoxy some black carbon fiber cloth over the wood it would make it stronger and waterproof to last forever.

[@MetalMachineShop]

Yes, agreed but this would defeat the purpose of a wooden frame; if you have to resort to carbon fibre reinforcement then the wooden design is deficient in the first place. That said, the section under the seat is potentially quite weak and may need reinforcement. I'm considering an all-carbon Mk II if the Mk I is successful.

[@herrlurch4290]

From what are you planning to build the shell from?

[@MetalMachineShop]

Possibly a very thin carbon fibre shell. For this design the body is not designed to be load-bearing so it can be thin and light.

[@odilidivine9535]

@@MetalMachineShop Message to metal machine shop kzbin.info/www/bejne/n5XEmYerZ8abm9E

[@daviddickmeyer5231]

It seems to me the left hand thread should be on the left side as to prevent the bb from loosening as you pedal forward!

[@MetalMachineShop]

I’m pretty sure I’ve done it correctly but it’s the other way round to what you would think!

[@benc8386]

Yes you would think so but it's weird. Something to do with "precession" or something. He definitely did get it the right way round. The pedals are the other way. Left pedal is lefty tighty.

[@MetalMachineShop]

@@benc8386 thanks - that's a relief!

[@DennyDavis-gd7cv]

Can I ask why the peddles are always so high up?

[@MetalMachineShop]

There are two reasons with this design; first is to put the feet in line with the chest to allow for a future streamlined body, second is because the riding position is the same as for a normal road bike just with the torso angled 45 degrees back, so that’s where the feet end up. Feet could be lower down, but that would equate to a more ‘upright’ riding position, preventing the power that can be generated by bringing the knees close to the chest and engaging the buttock muscles in the pedal stroke. That’s my theory anyway!

[@GdeCorban]

Hi, always nice job ! your pedals are too far from the seat and too near of the direction top bar, isnt it ?

[@MetalMachineShop]

The seat will have some adjustment when fitted so the leg position can be fine-tuned. As long as the pedals and feet clear the tilting arm there should be no problem.

[@MetalMachineShop]

@Martin Corrick yes, vulnerability is an issue. Definitely choose your roads carefully. This sort of design is best suited to the sorts of excellent segregated cycle paths you get in places like Finland, but there are some good ones near where I live too.

[@Pushyhog]

ah, no seat on it yet! duh! You sit back further with no seat.

[@Apo5308]