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Learning how to build Lotus Seven replicas...together!
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 Post subject: Re: marafonets design
PostPosted: December 21, 2017, 11:00 am 
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Joined: August 12, 2011, 1:46 pm
Posts: 32
Excellent work !
What type of bender did you use for the suspension tubes ?


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 Post subject: Re: marafonets design
PostPosted: December 21, 2017, 11:15 pm 
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Joined: August 24, 2010, 12:59 pm
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Location: Irkutsk, Russia
niko wrote:
Excellent work !
What type of bender did you use for the suspension tubes ?


Thank you ))
About how I bent the pipe on the suspension. I can tell the whole story. Firstly, I used a steel pipe with a one-piece diameter of 25mm wall of 2.5mm. Secondly, the bending radius of the pipe is 50 mm. This is the radius I drew well, just because of the beauty. That in the manufacturing process brought me a lot of problems.
To begin with, I went to friends who build motorcycles they had a regular pipe bender of this type. In general, I immediately got a pipe room with a flattening. In the photo below I will be an example.

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Then I began to puzzle how to make a bend? I refreshed knowledge, read books, looked at technology. And I decided to make a pipe bender of this type. It is universal and then useful for other works. But because of its versatility, it is difficult to bend a pipe with a small bend radius. I had to make such a small roller and 2 mandrels. In general, see the result on the photo.

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 Post subject: Re: marafonets design
PostPosted: December 24, 2017, 8:00 am 
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Joined: August 24, 2010, 12:59 pm
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Location: Irkutsk, Russia
Good day to all.
Finally, the turner cut out the cones and seats for the nozzles. And this weekend I started assembling. First, I printed out the sweep of the surfaces. Then I applied and turned the lines of the cut. Then I cut off all the excess on these lines, and everything got up as it should. Then I weld all the details. Tomorrow I will clean up the protruding places.

The result was an intake manifold. Throttle valves from Toyota Levin motor 4age.

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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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 Post subject: Re: marafonets design
PostPosted: December 24, 2017, 9:34 am 
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Joined: February 9, 2016, 8:46 am
Posts: 319
Location: New Jersey
Nice job!

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Certified Welder, Certified Welding Inspector, Full Time Car Freak...In New Jersey no less!


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 Post subject: Re: marafonets design
PostPosted: December 24, 2017, 2:51 pm 
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Joined: December 24, 2007, 5:11 am
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Location: Seattle area
Impressive in both design and execution. Keep posting!

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 Post subject: Re: marafonets design
PostPosted: December 26, 2017, 12:04 pm 
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Joined: August 24, 2010, 12:59 pm
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Location: Irkutsk, Russia
Hello everyone, and with the last Christmas.
I thought for a long time about how to make a gas cable drive. Many watched different options. Then I built a 3d model, superimposed kinematics. There was little space inside the cockpit. I had to take him out for a motor shield.
Look, maybe someone will be interested.

P.S. thanks for the support.

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"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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 Post subject: Re: marafonets design
PostPosted: December 26, 2017, 1:36 pm 
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Joined: December 24, 2017, 6:12 pm
Posts: 12
Amazing job so far


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 Post subject: Re: marafonets design
PostPosted: January 24, 2018, 9:46 am 
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Joined: August 24, 2010, 12:59 pm
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Location: Irkutsk, Russia
Hello. At us a frost a minus 30 already the second week keeps at night happens 40. In garage it is cold so that work while stopped.

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"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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 Post subject: Re: marafonets design
PostPosted: February 8, 2018, 11:47 am 
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Location: Irkutsk, Russia
Good day to all. I have not written for a long time since we had severe frosts and I worked very little. But I managed to do something. The first is a major engine repair. A complete set of boring of the cylinder block, new pistons, easier connecting rods, etc. The cylinder head was made to me by a nice guy, it's porting channels, lightweight valves, etc. (If I'm interested in detail, I'd like to make a second one for the gas tank. The third one started to lay the brake line. I bought such tanks on the Internet, and they are trying to install a large one. One line does not work. Need your opinion as it looks from the outside, beautiful or not? And he ordered a lot of small details from the turner, I've been waiting for a whole month to do it. Oh, and here I decided to print the nose fairing on the 3d printer. Also a whole month is printed.

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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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 Post subject: Re: marafonets design
PostPosted: February 8, 2018, 12:17 pm 
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Location: Carlsbad, California, USA
That's very innovative use of a 3D printer in creating that nose cone. I wish I'd have thought of that.

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 8, 2018, 4:21 pm 
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Joined: February 29, 2008, 7:15 pm
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That throttle cable design is pretty cool. Nice nose cone too - makes me wish I had a 3D printer! Add that to the list - mill, lathe, 3D printer...

Is there a way for you to check the spray patter from the injectors? I would wonder about it because of how high up they are, if that makes sense.

Very good work!

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 Post subject: Re: marafonets design
PostPosted: February 9, 2018, 1:53 am 
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RandyBMC wrote:
Is there a way for you to check the spray patter from the injectors? I would wonder about it because of how high up they are, if that makes sense.

Very good work!


Possibility to check up a torch of splashes is. But even if that not so I will not alter. At us such collectors are made on sale, but you would see what horror there do. There nozzles almost vertically stand.

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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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 Post subject: Re: marafonets design
PostPosted: February 10, 2018, 11:52 pm 
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Location: Irkutsk, Russia
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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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 Post subject: Re: marafonets design
PostPosted: February 11, 2018, 9:41 am 
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Before you weld up the gas tank, add a couple baffles, dividing the tank in 1/3's. You may even want to consider adding hinged gates to the baffles leading into your center fuel pump area. I learned the hard way and had to add a sump because I only used one baffle in my original design. Dave W


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 Post subject: Re: marafonets design
PostPosted: February 16, 2018, 11:57 am 
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davew wrote:
Before you weld up the gas tank, add a couple baffles, dividing the tank in 1/3's. You may even want to consider adding hinged gates to the baffles leading into your center fuel pump area. I learned the hard way and had to add a sump because I only used one baffle in my original design. Dave W


Yes, of course, I want to do in the tank against the overturning partitions, as in the book.

So, today for the first time in a week I got to the garage and immediately ran to try on the nose fairing. I got up almost perfectly. And I also bought a radiator from Honda Civic. Even today I took the parcel with a light flywheel!

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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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