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Author Topic: Bugatti Type 37 Build  (Read 24168 times)

jim

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Re: Bugatti Type 37 Build
« Reply #105 on: 27 May 2020, 05:08:35 pm »
Looks great Stephan.

RhysN

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Re: Bugatti Type 37 Build
« Reply #106 on: 27 May 2020, 06:18:17 pm »
Stefan, do you follow the facebook "Bugatti Brescia Builder"? Loads of photos today of the friction dampers.

Ron

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Re: Bugatti Type 37 Build
« Reply #107 on: 27 May 2020, 06:58:16 pm »
Those louvres look absolutely at home there , even the colour contrast breaks up the blue in an inadvertently great way, although I guess the longer term view is to colour match ?

StefanN

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Re: Bugatti Type 37 Build
« Reply #108 on: 07 June 2020, 05:40:48 pm »
Bit of progress on my dampers.

Now need to figure out what is fixed and what moves in a Bugatti leather link.

RhysN

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Re: Bugatti Type 37 Build
« Reply #109 on: 07 June 2020, 07:22:19 pm »
Is it possible this just allows for misalignment as the axle travel "articulates", primitive ball joint?

Ron

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Re: Bugatti Type 37 Build
« Reply #110 on: 08 June 2020, 03:03:55 pm »
That droplink reminds me of my dealings with triumph steering misalignment joints that sandwich a floating center disc between 2 O rings on each shouldered bolt to allow the bolts to be tightened while maintaining cushioned float.

RhysN

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Re: Bugatti Type 37 Build
« Reply #111 on: 08 June 2020, 03:33:00 pm »
I have asked a friend who owns a few real ones to give some input.

StefanN

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Re: Bugatti Type 37 Build
« Reply #112 on: 09 June 2020, 09:52:48 pm »
Today I remembered that I'd met a really nice guy at La Vie en Bleu at Prestcott who was rebuilding a real Type 37.  So, a quick phone call and he kindly filled me in on all the detail.   Several layers of leather are glued together and this has an hole near each end.  The edge of this is wrapped in a steel band which has both edges bent over to hold the leather in.  A tube, just slightly longer than the thickness of the leather goes through the hole, then there's a large washer on each side and then a bolt locks all this down tight to either the end of the damper arm or the to attachment point on the axle.  The steel tube can rotate a little in the hole in the leather and the leather flexes to compensate for any misalignment as the chassis and axle move relative to each other.

I've done one side of Version 1.  I might make some tweaks to the design and way I make it - we'll see.



jim

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Re: Bugatti Type 37 Build
« Reply #113 on: 10 June 2020, 06:28:10 am »
That looks super cool and a real nice bit of functional attention to detail.

Ron

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Re: Bugatti Type 37 Build
« Reply #114 on: 13 June 2020, 05:51:22 pm »
That's lovely work that retaining ring!

StefanN

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Re: Bugatti Type 37 Build - instruments
« Reply #115 on: 24 June 2020, 06:05:47 pm »
A long time ago I got it into my head that the Bugatti needed a copy of the Jaeger tacho in the original.   Well it’s taken me ages and stretched the accuracy of my machine skills, but it’s starting to looking like it might work.   Definitely much quicker to put in dummy instruments...

Ron

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Re: Bugatti Type 37 Build
« Reply #116 on: 24 June 2020, 06:59:57 pm »
Will that be driven by an electronic tacho or purely to enrich the details of the dash?, I must admit seeing work like that I've got withdrawal symptoms from not having access to my machining centre at work!

StefanN

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Re: Bugatti Type 37 Build
« Reply #117 on: 24 June 2020, 09:14:39 pm »
Will that be driven by an electronic tacho or purely to enrich the details of the dash?, I must admit seeing work like that I've got withdrawal symptoms from not having access to my machining centre at work!
Yes I'll be using one of the electronic tacho's we were discussing previously on the forum.

The tacho I got from eBay runs up to 10,000 rpm or something like that and of course we're lucky to get 4,000.   There's some adjustment on the tacho, so hopefully I'll be able to get more sweep of the needle.   For the dial face, I think I'm going to try some inkjet printable vinyl sticker paper.  Screen printed would be better I suspect but tricky to get the detail and I'm guessing would want to be an epoxy paint...plus a whole new process to learn and buy equipment for, so I'll give that a miss this time.

I've got various needles from old instruments and clocks, but if they don't work I'll have to learn how to make one.

RhysN

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Re: Bugatti Type 37 Build
« Reply #118 on: 24 June 2020, 11:02:51 pm »
I saw the ones that Adrian has done for his cars yesterday, brilliant. It would be worth touching base with him as he may be able to do stuff to the Speedline models standard. (that was his business so standard is exceptional.

StefanN

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Re: Bugatti Type 37 Build - resilient link
« Reply #119 on: 27 June 2020, 10:51:53 pm »
I made the second resilient link today.  I made a template from steel to make it easier to bend the very small lip on the metal band.  I soldered the two parts together with the leather in place.  The result is much neater than the first one so I might remake that.  All part of the learning process I guess.
« Last Edit: 28 June 2020, 12:26:14 am by StefanN »