Milling the BRONZE CRANK ARMS for the 1894 Giraffe Bike - part two // paul brodie's shop

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#bicycle #steel #jig #fussyframebuilder

[retromechanicalengineer]

Always something special. Thanks Paul and Mitch.
Best wishes, Dean.

[RichardGoodwin-jq]

Another quality job carried out. Super nice👍

[thejohnson]

You Sir are magnificent. What a great talent you have. I love the look of a hand machined item like that. There is something about the way it looks. Thank you mate.

[dgillies]

Nice work! It would be cool if there were a flanged bobbin-shaped bit that you could run down the outside of the crank arm to go from 4-sided to 8-sided with just 2 passes ...

[tomtruesdale]

That bronze worked very well, that crank looks like a piece of art

[Krotte]

Just a work of art produced by an engineering artist. The sight and sound of sharp tools cutting wonderful metal is fascinating.

[kevincorbin]

Love watching an Artist applying their craft

[murdoc]

Remarkable skill and artistry! Looking forward to what's next on the Giraffe Bike, and all of your projects! Go Paul and Mitch, keep moving forward!

[rickfazzini]

Ahhh, a Paul Brodie video!
As always brilliant work, your methods are so unique they seem so much more artistic than mathematical always inspiring!!! You and Mitch have a great weekend.

[marcellucassen]

I've never seen a bike with golden cranks, it looks beautiful! well done! 👍

[Pete]

Nice work Paul, wouldn't expect anything less. ✌🇦🇺

[allanrichards]

Those cranks look really good in bronze. You got a result with the taps but if you were stuck you can make taps. Years ago my dad and I made a 4" to the foot traction engine. On the actual engine the parking brake had a big square thread rod to pull the brake on. I wanted to replicate the square thread so I turned an extra long bit of square thread and used the spare bit to make a tap which actually worked to tap the female thread.

[gustaveriksson]

Not a micrometer in sight, wonderful!

[howardosborne]

Nice cranks, Paul👌
That grade of bronze seems to machine really sweet.

[cest]

I can't make up my mind if i'm awed more by the expensive bronze, how nice it machines, the artistic look or how Master Brodie tackles each of the challenges and overcomes them in the elegant way.
Speaking of bronze and tapping - bronze likes sharp - like virgin sharp even, and often forgives soft tools if they are just sharp enough. The true test to those taps will be how they fare after some high grade steel. And how they keep up after once knowing it...

A Joy to watch as always

[LightBranches]

Making beautiful golden chips...what a delicious piece of machining.

[stephenwilliams]

Imagine all those old odd taps in sheds that are waiting to be reborn 😮

[karlalton]

Great job as always Paul, and i learned summit new today ? the trick with the Tap in the mill 😁😁🤘🤘

[yodasbff]

Beautiful workmanship, thanks for sharing your videos. 👍

[michaelrandle]

They are some pretty fancy cranks there Paul. They are going to look fantastic .