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CrazyCrank

Pocher Bugatti T50 Coupé de Ville: a resurrection

497 posts in this topic

Beautiful work Thierry!!!!!!!!   Spent this evening going thru this build thread and really enjoyed it Sir.

 

  Randy

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3 hours ago, rjfk2002 said:

Really stunning work.  How will the linkage to the wheels attach to steering arm?  Are you going to re-engineer that connection also?

 

Rich

 

Thank you, Rich for your kind words.

The nut at the bottom of the steering arm will be drilled and threaded on the inner side, to allow a bolt to join arm and the horizontal linkage  that come to the wheel.

This linkage isn't very realistic and is too short, so, it's possible that I would have to re-engineer it.

 

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2 hours ago, RandyD said:

Beautiful work Thierry!!!!!!!!   Spent this evening going thru this build thread and really enjoyed it Sir.

 

  Randy

 

Thanks a lot Randy ! Coming from you, I'm honoured :)

 

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Who said "another world with a lathe?"
But you forgot the center hole!
Good job anyway...
Dan.

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2 hours ago, PROPELLER said:

Who said "another world with a lathe?"
But you forgot the center hole!
Good job anyway...
Dan.

 

Damned :o  You're absolutely right, Dan

It doesn't matter, because it's very easy to add it at this step of my building, ,and it will be done !

Thanks for your advice :)

 

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Posted (edited)

Yeah, @PROPELLER

 

Center hole drilled...

 

34372879756_f5f72c6242_c.jpg

 

I'll continue later my milling and drilling job on this steering arm and  the linkage that connects to it.

 

Edited by CrazyCrank
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Posted (edited)

I'm not very productive actually, my few free time being monopolized by the logistics of my older son's wedding planning :)

 

Little progress today though.

 

The conical arm has been sanded and polished (It remained  ugly marks of a very bad turning work). Now it's better and  acceptable, if not satisfactory.

This arm has been secured on the cylindrical bolted part, using silver soldering.

 

The cylindrical part which sleeves on the steering shaft has been drilled 0.8 mm, then threaded M1 at its top.  

And through this hole, a 4 mm M1 bolt will take place and could be tighten on the shaft to secure the connection with the steering arm.

 

At the bottom of the arm, in the "nut", an identical hole has been drilled and threaded and a 8 mm M1 threaded rod has been screwed and then soldered.

This operation has created an axle which will allow to connect the horizontal linkage moving the wheels.

 

34493792885_640bf04b4a_z.jpg

 

33651504504_0955d77465_z.jpg

 

33651504014_ac1576dac2_z.jpg

 

34108774340_4e7a00fa52_z.jpg

 

Regarding this linkage, i'm going to scratchbuild a new one with brass rods and my lathe.

The parts provided by  Pocher are unrealistic, too thick and too short, and the real linkage is not horizontal but  contains two sections: the rear one, which climb, and the front one, which is horizontal.

 

That's all as for now

 

Stay tuned if you like

Edited by CrazyCrank
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way to go `Thierry, sorry been absent here and now catching up to your legendary work !

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Posted (edited)

Very nicely executed, Thierry. Love the detailing added by this. 

Edited by Pouln
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Thanks Poul, compliment much appreciated :yes:

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Posted (edited)

Well...as told me another modeller: "Slow and steady wins the race"

So, slowly, but surely, I continue the scratch building of my steering linkage.

 

The Pocher parts of the linkage, compared with my reference photos, seem too thick:

- 4 mm for the connector (with the steering arm)

- 3 mm for the horizontal linkage wich join forward the connector  on the right front wheel.

 

So, according tho what I see on all my ref. photos, I've arbitrarily decided that:

- the connectors will be 3.0 mm

- the horizontal linkage will be 2.5 mm

 

First, I'd have to learn to master lathe turning techniques with different tools, in order to have an accurate usage, and get a smooth surface finish...

 

After several tries, I undertook to turn the first connector:

 

- Starting form a 4.12 mm gauge brass rod, 25 mm lenght

- Drilled it on the lathe 1.5 mm gauge over 5 mm

- Reduced the thickness to 3.00 mm over 10 mm

- And then, reduced diameter on the following 0.3 mm, to 3.5 mm

- Next, reduced diameter to 3 mm on the following 0.6 mm

- And last but not least, reduced diameter to 0.6 mm on the following 0.6 mm

 

Later, I put the part in the dividing head of my miiling machine, placed vertically on the crossing table, in order to drill  on it a 1 mm hole perpendicularly 

 

And I got this part:

 

34541831475_7c7428df16_z.jpg

 

34380820112_8bed9383a7_z.jpg

 

Compared with the Pocher's one:

 

33731013473_91e8045bd4_z.jpg.

 

This  connector  near the steering arm

 

34380873532_dc4044423e_z.jpg

 

Both with a M1 brass bolt

 

34156100930_17ae091d95_z.jpg

 

All parts connected

 

34156036700_30a3753c37_z.jpg

 

34380835582_732868ba6a_z.jpg

 

34500316006_52bd922c96_c.jpg

 

Put in place on the chassis

 

33731065673_b2a5a467fd_c.jpg

 

It remains to scratch built the front connector, using the same methods and measures, and the horizontal linkage

 

Later, all this stuff will be nickel plated

 

Stay tuned il you like, and thank you for watching.

 

 

Edited by CrazyCrank
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The name CrazyCrank...now I know why! :lol:

 

Fantastic!

 

Robin :smile:

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Very difficult to be everywhere !

 

Hereunder are the reasons of my great absence on the forum and lack of progress on my Bug's build !

 

My free time has been entirely monopolized since several weeks by my older son's wedding :)

 

I cannot resist  the pleasure to share with you my happyness and pride, and  present you my best "reduced" model, Matthieu (32 years old, 6 feet 4 inchess, for 253.5 pounds), the groom, and his fiancée Mélanie (no measurements Gentlemen):

 

34802674742_2b9615cfd1_c.jpg

 

34579248010_e17f1f30f8_c.jpg

 

34579241250_41e19b6043_c.jpg

 

And then two brothers together, Matthieu and Jérôme, my younger son, who lives in Montreal since 6 years:

 

34925852976_c1be6107c0_c.jpg

 

Champagne for everybody here :) :party:B)

 

 

 

 

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Congratulations to you and yours mate....nice one :)

 

Regards

 

Ron

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Congratulations indeed, hopefully she has a nice character as well :D

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1 hour ago, Roy vd M. said:

Congratulations indeed, hopefully she has a nice character as well :D

 

Of course, she has :rolleyes:

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A wonderful family to be proud of with a lovely new addition! Congratulations my friend, you have done well in life and these are your rewards.

 

I would love to chauffeur them to the Rivera for their honeymoon in my Phantom II Sedanca but the hood panels are not yet complete.  :crying:

 

When you raise a glass, think of us here, filling the room and toasting with you.

 

And when you awake and sober up, get back to this wonderful Bugatti! :whip:

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Congratulations!!!  Beautiful couple!!!

 

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Dear Thierry, congratulations for your son! You know I am me too running after time, that's why I can't take the time to look at other threads, yours in particular. But the few times I do, I am always very impressed by the quality of what you  show.

All the best

Olivier

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Congratulations Thierry, but I can't see any Bugatti...

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38 minutes ago, PROPELLER said:

Congratulations Thierry, but I can't see any Bugatti...

 

Mine isn't ready to ride🙄

It's possible to rent an old Bugatti, but absolutely too much expansive.

(http://www.classic-rent.fr/FR-location-bugatti-m28.html)

I thought for a moment to do it, and finally abandonned this idea.

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Congratulations dear Thierry on your son's wedding.

 

You built a beautiful family, so no wonder you are building the Bugatti so beautifully.

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