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Learning how to build Lotus Seven replicas...together!
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 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 12:05 am 
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Joined: September 24, 2013, 4:06 pm
Posts: 699
Location: Charlotte, NC
Those are serious looking brakes! Check the math to be sure your master cylinder is the right size for the new calipers. Good luck this season.

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My build: http://www.locostusa.com/forums/viewtopic.php?f=35&t=16005


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 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 11:29 pm 
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Joined: August 24, 2010, 12:59 pm
Posts: 106
Location: Irkutsk, Russia
Mnot wrote:
Those are serious looking brakes! Check the math to be sure your master cylinder is the right size for the new calipers. Good luck this season.


Of course. I started with math. I will not say that it is ideal, but I decided to add a coefficient of friction due to the pads.

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Others will come, replacing comfort
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 Post subject: Re: marafonets design
PostPosted: February 19, 2020, 11:43 pm 
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Joined: August 24, 2010, 12:59 pm
Posts: 106
Location: Irkutsk, Russia
Today I wanted to talk about the new exhaust manifold. The fact is that the first one was simply redone from the store; I did not like that it had short primary pipes of unequal length. By the configuration of the motor, it simply did not suit me. So I decided to redo it. For a long time I worked on this issue from the moment of conception to execution more than a year passed. Started by calculating the desired pipe length. Then the question arose of what to do? I did not want to do like all of the water outlets. There was a stainless steel version for the stair railing, but also refused. And on the Internet, I found a company that sells various components for exhaust systems. And the price is not expensive (made in China). I ordered them 6 bends for 180 degrees and so on the little things. When they arrived, I measured them and began to design a collector in 3D. It was designed option 3 and then chose one and redid it again 5. Then he decided that everything could not be taken into account, and if that I would adjust in place. But surprisingly, everything was assembled according to the latest version. To begin with, I printed the drawings of the pipe connection in one plane, cut them and applied them to the drawings. Then he took away the TIG welding. Yes, of course, they led a little. Then I just cut the ends in place and everything fell.
The final welding was already in place, I had to invite the TIG welder to my garage. In my opinion, it turned out not even badly. Now it remains to wrap with a thermal tape, cut the sidewall and assemble everything back.

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Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


Last edited by marafonets on February 20, 2020, 8:12 pm, edited 1 time in total.

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 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 11:03 am 
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Joined: October 24, 2008, 2:13 pm
Posts: 4143
Location: Carlsbad, California, USA
Nice job on a very complicated project. What program did you use for the 3D layout?

Cheers,

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Damn! That front slip angle is way too large and the Ackerman is just a muddle.

Build Log: viewtopic.php?f=35&t=5886


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 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 11:59 am 
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Joined: March 30, 2011, 7:18 am
Posts: 1565
Location: central Arkansas
marafonets wrote:
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I just wanted to note that's one of the nicest steering arm conversions I've ever seen. Simple, cheap, strong, and adjustable! Good brakes, too...


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 Post subject: Re: marafonets design
PostPosted: February 20, 2020, 8:48 pm 
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Joined: August 24, 2010, 12:59 pm
Posts: 106
Location: Irkutsk, Russia
Lonnie-S wrote:
Nice job on a very complicated project. What program did you use for the 3D layout?

Cheers,


Thanks a lot. The program I use Unigraphics NX

TRX wrote:
I just wanted to note that's one of the nicest steering arm conversions I've ever seen. Simple, cheap, strong, and adjustable! Good brakes, too...



Thank you very much I am very pleased

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Do not be ashamed not to know, it's shameful not to know and not ask

"And even if they say " Yes, let them talk!
But no one - no one dies in vain,
This is better than vodka and from colds.
Others will come, replacing comfort
At the risk and inordinate work,-
Will you not passed route." V.S. Vysotsky


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