We 3D Printed Hubs For BMX Bikes And They Actually Work! 

You guys relationship, the content, Matty and his progression through different types of riding as well as his interest in engineering, the loyal long held friendships. These are why I love to watch this channel. Scotty, you are an inspiration dude. Keep doing what you guys do 🙏

if you can scale that up by 2%, you can do what's called lost PLA casting...you dunk the plastic print into a ceramic mud similar to drywall compound, then burn out the plas5ic in a kiln. the remaining ceramic shell can accept molten aluminum, and the extra 2% dimension allows the hot metal to cool, and the part will shrink to the desired size. I have the gear to do this at home if you're interested in seeing these in metal. I'd just need a few hub prints to do it.

Matty your a jack of all trades! it's been really cool to watch it all to! between the welding, 3d printing, the roller bike, all the crazy builds, bmx, mountain, gravel, Ironman! I can keep goin! great job Matt!

There are several options for turning that into metal. I'm thoroughly impressed with your self taught skills Matt 👌

Rocket motor design engineer here - I'm legitimately impressed. Well done Matty! Matty, you could send the tinker CAD file to a local machine shop and for a few hundred bucks you could get them to machine it for you. That would be a cool follow up

There's carbon fibre reinforced filament that is insanely strong. It's basically the same as the material used to make the A380 wings. If you get a receiver made out of steel or titanium for the drive pawls to engage with then 3d print with the carbon reinforced filament you'd have some insanely light and strong hubs. Be careful with the filament though. The cheap stuff ($50 au per kg) won't be great. The aircraft filament is closer to $180 au for a 1/2 kg roll. But a bit of hunting around and you'll find the good stuff.

You can tell how impressed Scotty is! You guys have such a bond.

I love how Mattys creative juices are flowing…. If he keeps it up it will flow over into his riding as well… Also, you can create it in the cheap plastic, compact sand around it and pour metal into it, it will melt the plastic and go into the gap where the plastic was leaving you with metal parts…. Have fun guys and play around with it… Maybe even Scotty can create parts, hell I would buy some MCV or CSD parts

Impressed with Matty's understanding of 3D printing.

Matt has been doing some really cool stuff lately. Dudes a genius. And this rear hub definitely needs to be made out of metal. Make it happen Scotty. This hub looks incredible. It’s gonna be a must buy.

Make hubguards!!!! They already come in plastic so just try to use the same type of plastic if possible it’s been so impressive seeing matty learn all these skills

I’m a mechanical designer(no engineering degree) for work & 3D print as a hobby and love this!! I hope Matty pursues this further, would love to work for his bike parts company one day!!

With the right material like CF-Nylon(PA) or Polycarbonate(PC) /CF-PC you could easily make a brake lever or the arms that grab the brakes. Pedals could also work, bar ends, hub guards, and probably lots more. The key to 3D printing is material choice, good print settings, and print orientation. Understanding how your parts are going to be stressed and printing/designing them with that in mind can make them almost as strong as a conventionally made part. Well done Matty, cant wait to see what's next!

It crazy to see Matty grow over all these years. I remember watching old vids of the crew and matty reminded me of my little brother lol sometimes bratish. But to see him grow into the man his today just make me proud. Just like watching my own little brother come into his own. Not to mention MC has grown into one of my favorite riders. So well rounded and diverse it’s insane. All the crazy and weird tricks he has done just blows my mind! Keep up the great work guys!

Valve caps are a fun thing to print, can do all kinds of cool stuff, Also plastic hates to be at 90 degree angles, try to triangulate everything you can

Great job Matty! You should try and make a sleeve that would fit in a metal step ring for the driver to grab on. It could be an insert that slips into a key in the plastic. Good work! I’m hoping to see these progress and other cool ideas you may have!

Matty just cant slow down!! very impressive. love the content Scott & Matt

hearing matty and scotty speak is honestly like a gift to hear. i know that may sound weird but these guys are very good at explaining things from a base level! they explain all the basics and how they managed to build it as well as why they chose to build it that way! great job boys!

Matty is a jack of all trades…very creative dude

Innovative and creative, Matty!

Holy crap that is amazing. The idea itself, the design/engineering and thoughts behind why you used straight pull spokes and all else, and list goes on. I’m super impressed. Keep doing the damn things and who knows where this could take you

As someone who runs the 3D print lab of a makerspace I can say the potential of what you can make with a 3D printer is second to no other tool. It's the single most useful machine you can buy. Especially when you get into more engineering grade materials and ditch PLA.

I got into 3d printing this Christmas. It’s amazing what those cheap machines can do.

I'm excited for for his ideas and toys

Love how excited Matty is about his creation. And Scotty's hands are clearly working a lot better these days. He was spinning that wheel around so smoothly.

Make it happen Matty! Very cool.

The rear hub looks like the old tree hub. Pretty sweet work man good job!

That’s brilliant well done

The back hub looks just like the one I have on my road bike but Matty you are talented keep up the weirdness and the good work.

Hey, there are flexible filaments for 3D printers that would work well for printing bar ends.. You could make the most perfect handlebar grips ever, perfectly shaped for your hands and stuff. I bought a 3D printer about a year ago, and it's just awesome when you get into it and learn a bit of 3D software so you can start cranking out your own inventions. It truly feels magical making a digital model just turn into a real thing in a matter of hours. Start the printer, go play some video games and eat dinner and stuff, go back to the printer and shazam, there's a physical object sitting in there... I just can't get over how crazy that is even though I understand fully how it works.

1:23 The rear hub reminds me of a tree hub that Scott used to run back in the day 👍🚲💨

3d-printed chain tensioners (for frames without integrated ones) might be cool. Low risk of anything going catastrophically wrong and someone getting hurt. Or maybe a 3d-printed gyro assembly, or 3d-printed brake pads lol.

WOW I am impressed with Matty more and more. What kind of filament did he use? Looking forward to some more 3d printing videos!

good for you matty, very nice job!

That Is So Cool!!!

Bro keep up the good work.

Nice work looking forward to MCV2

Matty, in Cura, check the box for generate supports. You can then print things that would need to hover without the rest of the part underneath. "Tree supports" work really well, and dont add a ton to the build time.

you can 3d print metal alloys now. The Swiss supercar company, Koenigsegg 3d print the titanium exhaust for the rear of the car. I would guess their printer is HUGE money lol. You guys should also check out the spokes made out of, I think, dyneema. Used to make sails. Each end is metal, but the majority is fabric. I've only seen them used for high end MTB wheelsets though. The name is Berd Spokes. As soon as I saw them, I thought, these would be perfect for BMX. Light, simple, and shock absorbing without deforming.

Pivotal seat posts? Maybe pegs out of ABS? Brake levers? Pedals? Maybe get real risky with it and make a stem? I got a creality ender 3 max and it's like 300 bucks and sick. 500 is actually pretty expensive for a starter setup. I wouldn't use PLA for anything BMX related. I'd only use ABS.

WOW earliest I've been here 😎😎..I'll take your word for it Matt 😁😁😁 it's all Greek to me..great job Matt!!! Love all your videos Scotty.

Make a handlebar end cap that looks like the rubber button that you see on small 2 cycle gas engines, that primes the engine. Find a broken weed eater or blower and take the rubber push button off so you can see how it's made. And, then make it big enough to fit the handlebars.

great job Matty..ill never understand 3D printing lol..its just so cool..

Those hubs are awesome Matty, I do 3d resin printing and I print small parts for plastic model cars, I wonder if you redid your hubs with putting some kind of metal insert inside where they got chewed up, probably gonna need a cnc machine for that but it would be cool, good job dude

Try a making the drive side accept press fit metal ratchet ring for the driver to engage with. Could last longer that way with a larger support area similar to a spline drive insert for the driver to then bite onto metal

That's freaking cool

The older Mavic Deemax wheels had the straight through spoke hub just like that one side of Mattys rear hub. I still rock mine and I have lots of extra spokes for it haha good job Matty!

3D printed pedals or either a sprocket hmmm so many possibilities. Absolutely awesome video.

nice work Matty! cant wait to see you give a crack at some pedals think you will nail that one even better! ;)

Make a metal insert with teeth to press fit into the hub similar to a bearing. Probably something you could cnc. And a new skill for Matty to add to his collection!

Way cool!!

The tree bmx hub had the straight pull spokes was one of the sweetest hubs ever cool to see it replicated.

Very cool.

Matty is an Engineering Genius, he's built so much different stuff 😳👍💯

That is the coolest looking rear hub I have ever seen, looks like a nuclear cooling stack. It would actually be pretty simplistic to make in metal with the right tools. I hope Matty does some research to make it happen.

All you have to do is send the renderings to a cnc shop and send them funds!! Get it made!!!

Be great to see a 3d seat or 3d bars if that's possible, but awesome work Matty that is incredible 3d printing and this is one of the best channels on youtube without doubt

Jeez luereez, Matty should have been an engineer!!

That is awesome let’s see some pedals seat clamps and bar ends

This is really impressive to me.

3d-printing a seat could be fun! And/or a seat post

Sick work matty you should make your own signature grips and bar ends,or a plastic seat.

You and Matty should try to recreate some of road bike party would be cool to see the process

Good job Matty, you should try your hub out with the new spokes made out of string.

scott you have one cool brother!!!!!

that would be awesome to see through hubs rims and spokes also a see through frame would be awesome and lite

You guys should send the design to shapeways and they can 3D print in metal and other cool materials!

Suggestion. Place threaded metal tube inside and machine a threaded pawl holder. Sort of a metal sleeve inside. That would fix the stripping problem. Best of luck.

Grab yourself a de-burring tool off a,axon. Really helps to clean up some of those rough edges. Good on you for getting into 3D printing. Nice to have a budget printer with an enclosure. Means can print some filaments like abs or exotics. Personally I’m a fan of PETG over PLA for tougher parts. Keep at it and can’t wait to see where you get to next. Look into an airbrush kit for finishing your prints even fancier!

That's a very well thought out design. Send the same model to get printed in titanium or aluminum. I think sculpteo does it as a service or connects you with service providers.

Some things I've made in the past: Grips/Bar ends Custom Spokey-dokes Light mounts Phone mounts Barrel adjusters Valve caps Balancing weights (attach to spokes) Hub guard Stem caps Headset spacers

A rim, handlebars, pegs, brake lever, crank, forks, seat post, there's endless stuff you guys could 3D print out

Some tripod footage of the crew with a nice angle would be cool and refreshing, while giving you a break from holding the camera! Just an idea.

That’s insane you can 3D print aluminum too btw so you can definitely make that into a real hub

That hub shell design has been used in MTB/Road before.

Awesome job. Printer is a good value reasonable quality unit but it needs dialling in. Do some calibration tests and then again when you change print material. Lots of resources online to help you get cleaner and stronger prints. Metal inserts might go a long way towards a reliable home built product. Metal rings inside and outside the hub cylinder and flanged tubes for the spokes. Experiment with different filaments. No need to destroy your nozzle with carbon fiber infused nylon straight away. PETG, ASA or polycarbonate are some interesting options to try. Your 3D model could be used to CNC mill or lathe from a chunk of metal too. Have a nice billet aluminum piece. Model might need some changes to use and obviously you'd need someones expensive machinery to do the job. Skill up that 3D modelling and you can have your designs manufactured in various ways.

Matty and Scott, Search up the Simple Hub. it was the same exact way with being flangeless . i actually have two simple hubs, one on my bike and one sitting around. very old hub and i know you should know what it is. Very cool.

I saw they make fabric/composite string spokes for mountain bikes now. Might be a cool idea to combine the string spokes with your plastic hubs. Then you wouldn’t have metal on plastic.

Do a pair of handle bars !! A seat post would definitely hold up though!!

Matty is a G

Dope

You need a CNC lathe with live tooling to make that hub out of any metal, or metal 3d print it, would be cool out of titanium powder, good job.

I think you did a great job. The rear hub looks similar to hubs that were made in the late 80s, or the 90s. I can't remember if they were made by TNT, or some other company, but they were RAD. Both sides of the hubs had the look of the driver side of your rear hub. I tried to find them on Google, but no luck. Anyways, Great Job Matt. You came up with a cool idea. I wish I could find the hubs I am talking about. I think you would Dig them. 😉

if anyone wants to get into 3d printing, the Ender 3 is the best hobbyist printer, it's got a larger printing area than Matty's Dremel, and you can find them on sale for about 150$. this is the printer than the 3D pewpew goons use, most files are written for that printer.

Pedals, Pegs and Seats would be cool to see

Custom bar ends and stem caps maybe Tire valve caps. You could do the channel symbol and make keychains

You could mold that! Check out forged carbon compression molding, print a mold and use a carbon chop strand kit and make one that would last years

If you have a 3d model of it you can absolutely get that part machined. Look for a CNC shop or even a RU-vidr that may want to collaborate on it

Damn I would love to get the stl. I’ve made peg sleeves on my resin printer and petg.

Time to go to sharktank lol 👏🏼👏🏼👏🏼

MATTY! You could reprint the hubs and get them casted into aluminium shells

I think you could maybe keep the plastic for the next version, but for the engaging there would need to be one metal ring with teeth on the in and outside which is then put into the hub.. If the driver engages against the metal ring, the ring will put equal pressure on all of the plastic teeth. Also there's then not gonna be space for plastic to fall of and fly around in the hub

That is really cool I would ride a hub designed by Matty. 3D printing is a ton of fun you might want to get a ruby nozzle for your printer and print with the carbon fiber infused filaments, they are supposedly a lot stronger.

Y'all should try 3d petals that would be sick

That's is an amazing idea, can you do sprocket next time. We used polymer blend in injection moulding to make really hard plastic parts that can contain a high water pressure maybe that might help 🤔

mcv1 bar ends seem like a must

You fellas need to get that kid two c and c machines

Matty, check out shapeways. You can send them a file and have it printed in other materials(metal). It's not cheap though.

i did this two years ago 3d printed a sprocket and looked into flexi filament to print grips

Bar ends should be next up. Visible “MC” etching and all. Long term actual use even.