Machining a FRONT HUB for the Giraffe Bike // Paul Brodie's Shop

[@MudmanDH]

Pure gold for metal lovers 😍

[@paulbrodie]

Thanks for watching and commenting!

[@dcarter001]

Thanks!

[@tairinwheels]

We like hubs too! It was great seeing you last year at the Vancouver Bicycle Maker Show, take care!

[@paulbrodie]

Thanks! That was a good show and I enjoyed being there and meeting you and other people...

[@joepeanut6827]

Here in the Willamette Valley, in Oregon We have Freezing rain.80 Dollars for that Brass bar, and then machine off 60 $ worth of metal. Really nice job .You do awesome work.

[@paulbrodie]

Thanks Joe. But I did save 1/2 a jar of bronze chips from the lathe. Those chips sprayed everywhere, and they are hard to get out of clothing. And I have no use for them...

[@jcnpresser]

It machined very nicely! Love the finish

[@paulbrodie]

Thank you. Yes, the machining on the lathe went well, but did you notice that drilling holes caused me some problems? Bronze is "grabby" and that's what happened...

[@jed7644]

For those that don’t know, setting the compound @ 30° makes sneaking up on a bore diameter all-kinda more-easier. It’s a length of side opposite thing. With the compound @ 30°, a thousandths of compound feed (.001”) will be half a thousandths of movement on the lathe’s X axis (.0005”). That makes it _way_ more-easier to nail an interference fit w/out going over. With practice & a good feel for a particular lathe, hitting w/in a coupla tenths is no biggy.

[@paulbrodie]

That sounds like a good idea. I had not heard of that before. You might have taught an old dog a new trick so thanks for watching and commenting....

[@janeblogs324]

Who has the patience though lol. That's why its called boring

[@paulbrodie]

I have the patience. I do not find it boring at all....

[@jed7644]

It’s not for everybody. Those who are up to it are the ones who just can’t wait to get to work in the morning, & have to be shown the door in the evening. What we do is engaging enough that putting it down & walking away can take a real commitment to a balance in life. Aside from my own thing, I’ve never worked anywhere that didn’t try to pull me out of the shop & chain me to a drawing board or a CAD workstation, & I’ve never worked anyplace that I didn’t walk away from when they did. The challenge of precision is just too irresistible a draw, & it has been for right-around 5 1/2 decades. As a toolmaker, or more specifically a mold maker, I’m driven by the need for high levels of precision. Toolmakers are all about quickly, efficiently & _routinely_ hitting rigidly placed marks. Paul’s more free to place & define the mark, & that’s the difference between a craft or a trade & _art._ Paul’s _artful_ application of a deep & wide ranging skillset has carved a place for him in cycling history. Boring? Not even close. Most of us can only imagine how satisfying Paul’s career has been, but I can imagine that’s about like holding up a thing that I made my-own-self, knowing that it will serve it’s function & serve it well, & that I have too.

[@soethan.1349]

We love hubs too, It's great work. Thank you for your sharing video.

[@paulbrodie]

Thank you!

[@janeblogs324]

3:44 those 90° corners will crack. Just like wagon wheel hubs from yesteryear you need a smooth radius for zero stress risers

[@Impuritan1]

If you’ll look he’s using a parting tool with a radius’ed insert and look again at 12:57 you’ll see those corners have a radius.

[@onepairofhands]

nice job on the machining

[@paulbrodie]

Thank you very much!

[@danielleahy2456]

Great stuff Paul and Mitch, hubs, cranks, brake callipers, frames WOW. What you do is just awesome.

[@paulbrodie]

Thanks Daniel. Yes, Bikes and Bass. My Fun Factor is quite high. I think you know that...

[@danielleahy2456]

well my fun factor is high too 👍@@paulbrodie

[@paulbrodie]

Thank you Daniel....

[@danielleahy2456]

Thank you Paul @@paulbrodie

[@dansdayoff]

I use various sized 4flute ball endmills spun by hand (or slow in a battery drill) to deburr holes like that. They work great at even pretty steep angles

[@paulbrodie]

Yes that can work too..

[@arthurmiller-vl6sw]

Paul, love your content. It’s insane input costs are so high. Really prevents small business from making an attempt to go into production. That’s not even accounting for tools, shop, heat, labour.

[@paulbrodie]

Thanks Aurthur. Yes, costs are a problem on many levels...

[@chrisfournier6144]

Bronze is something that I order and machine very carefully! Those bearings were expensive but European or Japanese is the only way to go. That job is beautiful Paul! Okay I just saw your cardboard chip deflector. Now that’s tidy!

[@paulbrodie]

Thank you Chris. Yes, I tried a chip deflector. It worked ok, but not great. Those chips really do just spray everywhere!

[@BlueyChandler]

It's great to watch you machining and manipulating steel on the lathe, and other machinery.I wish I had the same confidence.

[@Farlig69]

Here we go on the PBC machining again 😆- lovely job. One question though, bronze is probaby the same density as steel, so I guess this is more for asthetics than beng a weighht weenie??

[@bradwiebelhaus7065]

Good to see you in the shop.

[@paulbrodie]

Shop Time is a good thing.. Thanks for watching!

[@Rafael-xy5ti]

Hey Paul, you look so good!!!

[@paulbrodie]

Thanks Rafael. I am doing everything I can to be healthy!

[@fixitmakeit]

you're enjoying snow, here in Perth , Western Australia were "enjoying" 108f , 41c.

[@murdoc6501]

Love watching how you design and execute! Humble parts raised to art. Thank you. Go Paul and Mitch, keep moving forward!

[@paulbrodie]

Hey thanks. Glad you like what we're doing.. Mitch and I like making them, and it's a good way to keep a project moving along....

[@tomfortson5147]

Very nice hub, Paul and Mitch! Really appreciate the way you teach us, Paul!

[@paulbrodie]

Thank you Tom

[@neilpalandri-jones689]

Exact opposite Paul, its 41o Celsius here in Perth Western Australia, so as I commented on another channel - it too hot for riding here, and too damn cold for riding where you are. Thanks for the vids - always informative and interesting

[@slimdog72]

Such a joy to watch you work Paul, I learn something every episode. I am going to try and be a machinist today, on my lathe.

[@paulbrodie]

Well thanks. That is a very nice comment...

[@johna7661]

That turned out nicely.

[@tomthompson7400]

Always a joy to watch

[@paulbrodie]

Thanks Tom. Appreciate your comments...

[@jankomaras]

You are the boss! 🤙

[@paulbrodie]

Well, I did use to be the boss, when I had a Company. Now I am just Retired. Thanks for watching. We appreciate it!

[@davidmotoman4956]

Love your Work Paul. Hope you are doing well. always learning from you mate. Dave from Australia

[@SirMarcello]

I'm from Poland 🇵🇱 and we are having snow here as well 😀. Keep warm!!!

[@antoinedoinell]

Top notch as always Mr. Brodie. Buy nice not twice as they say!

[@paulbrodie]

Thanks Antoine, I like your "Buy nice...." It really is so true..

[@carlhitchon1009]

$15 of bronze left. I thought you might put generous radii on the inside cut. It's a nice looking part anyway.

[@tiffinthyme5822]

Hello Paul, that was a pleasure to watch, turning out a good fit! Mitch was so talkative too!!! Great to see you having fun in the shop. Regards Kevin.

[@paulbrodie]

Thanks Kevin, Yes we are having much fun in the shop. A Bass and a Giraffe Bike are 2 great projects to have, even at the same time... I feel very Fortunate....

[@MrMetalmaster1]

love the work, but why do you drill the holes in the drill press when it is already in the mill?

[@paulbrodie]

Thanks Mike. In the mill I have to turn the rotary table 22.5 degrees for every hole I want to drill. I've already marked the positions with a centre drill, so the drill press is much faster for drilling the final spoke holes. The only problem is when the drill bit wants to grab the bronze....

[@davidpalk5010]

Loving the hair. Keep it up. See how big you can get it. I'm a lot younger than you and have baldness. I'm very envious of what you've achieved on top of your head! PS. Nice machining and fab work, but I now come here for the hair.

[@paulbrodie]

Thanks David. I did have a haircut, and she took too much off. I was not happy, but it will grow back. Yes, I am enjoying Big Hair and playing Bass!

[@thenoobplaysit6923]

Why did you use bronze instead of something cheaper like aluminum for the hub?

[@peppermintpig974]

Lovely work! Wish I had the money to have a quality bike like you make. Actually, I'd just love to have the tools to make things like this as well to go along with my garage bike workshop. Unique one-off bicycles are great to see. This project is inspiring.

[@paulbrodie]

Thank you very much for liking our project. I hope you do acquire more tools and develop your shop. It's all positive...

[@ptz0n]

Amazing work, as always. Really like the way it turned out and the straight lines design. Cheers from Sweden 👌🏻

[@dennisyoung4631]

It’s snowing here in Portland, too. Had plotted how to do something like this years ago, but never did it. Now I get to find out if the idea I had was any good.

[@marcelpfeiffer6587]

Awesome job, I'm still riding my Syncros front hub from the early nineties in my eXpresso.

[@daedaluscan]

I think I learn at least half a dozen things from each video. Thanks.

[@tongalizia3175]

Happy new year my Paul. And Math does not lie….when everything is align the best amazing ride happens …

[@rossbodenmann]

That hair is really coming in. Looking healthy Paul!

[@Horstelin]

Oh my god that looks like so much fun! I did a metal working class during my school exchange to be Zealand. Loved anything that was done on the lathe.

[@Horstelin]

Also gloves on the drill press really give me the chills just watching it. Big no no for me

[@caesarillion]

PB, How about some lap times? Thanks. Thailand Paul-Cave Man

[@paulbrodie]

Lap Times? I have no idea what you are talking about, but Thanks for watching....

[@caesarillion]

Aeromachi and X OHC. Have you never dialed them for road racing and some stats? @@paulbrodie

[@caesarillion]

PPS, How about an OHC X in a period chassis for the street? The playboy special......

[@angelozapp]

Great workmanship Brody looks awesome great to see you again❤✝️🇦🇺💯🙏🏻

[@paulbrodie]

Thank you. I am feeling good these days. Really enjoying my projects.... ps: my name is spelt with an ie.

[@shovelresearch]

love the macro close-ups!

[@Jayneflakes]

Thank you for sharing your beautiful work.

[@rusty1597]

Damn, you made that whole thing and never measured once. I'm impressed. 😄

[@slowwerthensnot]

That’s gorgeous

[@howtorepairpendulumclocks]

Every machinist... its a good fit, I took too much off, yes it's a good fit... pretty good fit. Love it!

[@MikefromMOMichaelTurner227]

Looks great Bud!! Nice machine work!

[@markzurowski3627]

It's -51C with windchill here in Saskatchewan. Thanks for the video to distract me from the weather...

[@ccbproductsmulti-bendaustr3200]

Superb skills as usual Paul , not snowing here in Australia, summer here, up to 43C/110F Cheers Chris

[@rickfazzini22]

Nice work as always fellas!

[@TL243]

Awesome!

[@criticalmass181]

I'm pretty sure your hair is going to become self aware, within the next few months, Paul. Great video

[@paulbrodie]

Well, I might have to get a trim, to get a handle on this Controlled Chaos. Thanks for liking..

[@kanal5296]

So amazing! And now? DT- Revolution?

[@kostais]

Fantastic

[@fluffyflunk]

SKF, aaah. Swedish/Japanese quality. 🇸🇪❄️ I wish you the best.

[@ayhanbkr]

great video again

[@Orcinus24x5]

Why did you make the hub out of bronze instead of aluminum? I can only assume it was for the extra strength...

[@julian5883]

That's going to look great when built... Non machinist question!...why did you remove from the circular table to do the final drilling with the pillar drill? Wouldn't it have been simpler/quicker/more accurate to just change the bit in the mill and continue?

[@tonydiridoni5829]

I still have not learned how to braze, beautiful work Paul.

[@jarnosaarinen4583]

Nice Job Paul! Beautiful metal Bronze, I better get some! lol

[@57moto59]

You're such a good craftsman!

[@bornlevi]

Great Vid!! im sure this is much harder than you make it look. I think im gonna give this ago.

[@paulbrodie]

Thanks! I hope you do make a hub....

[@hookedonwood5830]

Do not let Sam Pilgrim ride that bike!!!

[@xpndblhero5170]

He would love this bike..... 😂😂

[@Digital_Fuzz]

Today is gonna be epic!

[@tinaliebe5118]

🤣🤣🤣

[@jankomaras]

Going down the stairset of doom! Please!❤

[@blockhead3654]

It would be the most amazing bike ever.

[@xiyuanli95]

nice work！😀

[@davidperry7676]

Instead of using dividing head you could 3d print the pcd or print it on paper I guess and drill with hand drill. What you reckon?

[@aickoyvesschumann3400]

SKF=Svenska Kullagerfabriken is technically a Swedish company, though. Fantastic machining. I always wondered if a hobbyist with a lathe could custom make hubs. Please show more from scratch bicycle making.

[@yodasbff3395]

Good video, thanks for sharing 👍.

[@johnaliposa3339]

Can't wait to see the rear hub paul, eh by the way, my son is using your v brake set for his surly cross check gravel bike, lighter and smaller than the old brand, much better not to mention the brand paul and it really looks different, anyway good to see you again paul...

[@josimarjunior1419]

Really nerve wracking to see you with those long sleeves so close to that moving chuck filing like that.

[@paulbrodie]

A little excitement can be a good thing, right? Don't worry, I am being careful...

[@josimarjunior1419]

@@paulbrodie Yeah, maybe u r right, I'm the young one here. -hahahahah Thank you for the vids, cheers from Brazil 🇧🇷

[@paulbrodie]

Hello Brazil! The camera angle plays a part too. You are not the first to comment about this. I will be careful...

[@johnpublic168]

What bronze are you using

[@gerry343]

Why bronze and not cheaper aluminium?

[@siTTinLo]

Beautiful hub. Excellent work as always. 👌 Not sure which BMX freewheel you’re using for the rear but recently a company called Theory BMX just came out with a nice high engagement freewheel called the rattlesnake.

[@paulbrodie]

Thank you.. It's a Micro BMX freewheel, very compact, with 14T. Now I just have to fit the skip tooth sprocket over top of everything... What can go wrong?

[@siTTinLo]

@@paulbrodie I have full confidence that you will make it work 🫡 Also, it is snowing here too… I don’t like it. 😭 😆

[@willymueller3278]

SKF is an old bearing manufacturer from Sweden, you might get them cheaper there. Maybe, I dunno.

[@jakotako2249]

Paul , you Rulez😀

[@donnanderson42]

That’s a thing of beauty! Hey, you didn’t show how you make the bearing counter bores concentric to each other when you flipped the part.

[@donhuebert9151]

I would love to see you collaborate with Quinn Dunki on this project. Get her to make the rear hub. It has everything, thread cutting, boring, rounding over, spoke hole cutting. It would be completely unlike anything else she has done on her channel.

[@TheeGrandmaster]

Definitely should have used a center for the OD turning, and then gone back for the boring. Much more rigid. The bronze is soft enough that you got away with it though, it seems. So no harm no foul. Putting your sleeved arm over the chuck like that to file is really spooky. No need to get that extra pressure with the lean over. It's also a mistake to use a center drill as a spot drill. It's giving too steep an angle for your actual drill, connecting on the outsides of the flutes and pushing the drill off axis, rather than providing a snug middle point for your drill's much shallower angle. You can see the effect of this as it tried to wobble away from you a few times as you drilled. You want to use an equal or greater angle for spotting. Would have been better off just drilling right there in the mill with a screw / stub length drill. By far the best drills to keep around. Running that deburring bit in a hand drill also would have been much more controllable. Just some thoughts as I watched. It came out very nice regardless of my ideas. Thanks!

[@Paddington60]

You reminded me of Double Boost using his Dad's old wheel brace drill for de-burring purposes.

[@GrigoryRechistov]

This hub shell may be cut out of bronze, but its value should be equal to its weight in pure gold!

[@stephenwilliams926]

Nothing like that hot brass spraying all over your neck has you turn it 😮

[@mindbendernine]

It's frightening to see him working with a metal file tool and long sleeves while right above the spinning lathe which is at high speed. I know that his experience is second to none, but I think of all the warnings about long sleeves in a metal shop. Having said that, the part came out so beautifully.

[@calgiordano2724]

Have you ever built a Penny Farthing Mr. Brodie?

[@paulbrodie]

I have done a lot of crazy things, but I have never done that.... No..

[@thedford]

i want a paul brodie hub!

[@littleshopofrandom685]

Bearings got bad after the orange man put tarrifs on them and they never came back down. My 12mm bore NSK P5 matched sets when from $59 to $149 at misumi. So I found so good quality chinese ones for $20.

[@Cetrifuga1945]

Grade mozzo fattura al tornio di precisione più veloce della ruota

[@KB_Joys]

Crazy what they charge for things . Imagine living in a world where everyone can do what they wanted without inhibitions. Of coarse I'm not talking about anything nefarious, lol Good job 😊

[@ragnarironspear1791]

SKF do the best bearing

[@goodwaterhikes]

😎✌️

[@kiel9030]

i got tought that you never want to wear any kind of gloves when you operate drills etc. because they can get wiggled in way easier than your skin. Why do you do it?

[@ryderphillips4464]

I like your machining, not too finicky.

[@joell439]

👍👍😎👍👍

[@xpndblhero5170]

As an old-school BMX rider this bothers me because we had 48h hubs and rims but now they don't really make them anymore.... 😩 I guess this proves I'm old. 😂

[@davidcahan]

I instantly questioned your angle measurement. 360/32 =11.25. but then I understood....

[@TL243]

8:16 every time I move it it has to be 22.5 degrees. Oh and how many times?? Uh…piece of cake. Not for us mortals.

[@brianevans1946]

Great video but please do not use gloves near spinning machinery, it will grab and pull you in.

[@hookerjl1]

So satisfying watching you building this beautiful hub😍interesting motorcycles in the background too😎

[@paulbrodie]

Well thank you very much! I had fun making that hub... Now we have the bronze rear hub, plus a set of bronze cranks.. Yes, I do have a few motorcycles of interest too...

[@jobkneppers]

Paul, I looked at the bearing you bought for too much money. I buy the same German or Japanese for less than 10 euro here. One supplier I use is RS components which also exists in Canada. I looked at the prices on the Canadian website and they are at least 4 times more expensive and have a lot less to choose from. Is there some kind of bearing embargo going on in Canada? Weird stuff in my opinion. Best, Job

[@fajile5109]

What? 80$ for a cylinder of brass? Im in the wrong business.

[@paulbrodie]

Yes, I just ordered the bronze for the rear hub. It was larger and longer and it will cost me $135 plus tax. Metal is very expensive....

[@j.w.5195]

Hi Paul. I really admire the stuff you make, indeed incredible. However, I have had mixed feelings about your approach to refabing on antique hubs ... and now, after hearing your complaint about the expensive Japanese bearings, I just have to say it out loud: why dont you maufacture the old school "cone & cup -type" ? They are very easy to make, even in-house hardening with a flame is not a problem, given you chose sutiable steel (and of course, the balls I'd just buy) ... you can re-adjust the play by screwing the assembly together - a proven concept and, from a collectors / antique lover's point of view, very safisfying: it would be the original type of deal. Even with my much lesser skills, I have made quite a few repro-hubs for 1890s Safety Bicycles , incorporating the traditional design and they all look and ride great... in other words: it is "more original" and cheaper, why would you not want to do that ? Either way - pls keep the great work :)

[@j.w.5195]

Forgot to say: I could kind of understand the approach of using modern ball bearings for an antique motorcycle ... but for on a antique bicycle imo it really should not be done