Lotus E21 construction report part 5

Inner front Suspension arrangement

Even though the 1:1 RB10 needs almost my entire ressources at the moment, I was able to finish the inner front suspension stuff within the last weeks. When the inner suspension stuff was just a simple scheme at the RB7 and a basic arrangement at my Audi R18 TDI, the E21 has now a fully detailed inner FS and pedal arrangement. Although all this details can hardly be seen after bonding the two chassis halfs together, I do not worry about it. It’s in there and you can reveal it thru the hole in the front bulkhead.

In the next few weeks I’ll finish the few missing parts inside the monocoque, finish the cockpit entry with a clear lacquer und bond the two halfs together – hopefully before christmas.


Front rockers


Front rockers mounted to the inside of the monocoque.


Springs, dampers, PAS (Power Assisted Steering) and steering column.


Two potentiometers and a bit other electronic stuff for measuring single front damper movement.


Assembling a poti. Quite a fiddly work.


Kimis pedal assembly. The cutouts on top of the pedals should initially be just a half circle, but that would have been a bit difficult to produce, so I prefered to do it as a full circle.


Whole pedal assembly mounted to the lower half of the chassis. The big fat line you can see coming from the back is the hydraulic line for the interconnection between front and rear heave dampers.


Different angle of the pedal assembly.


Hopefully my work was accurately enough not to get problems by colliding items when fitting the two halfs together. But I think it should be alright.


At the left hand side you can see the hydraulic lines for the interconnected suspension and the rear brake line. At the right hand side, there are the hyd lines for the PAS and the line for the gas pedal.


Top view of the pedal assembly.


The two chassis halfs almost finished to bond together.


Cockpit entry is ready to get finished with clear lacquer. I’m just waiting for the arrival of my spray cans.


Also a new feature, the cutouts for the whole electronic and hydraulic lines on both sides of the monocoque.


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About paulsf1

My name is Paul Bischof. I’m a student in mechanical engineering at the Technical University of Graz in Austria, expected finishing in February 2016. Since I was eight years old, I am building model planes out of paperboard. Since 2004 I scratch (that means building without an assembling set) Formula 1 and sportscars in 1:10th scale. The average time I need for such a car is around 400 to 700 hours within 4 to 8 months. One car has around 3500 up to 5000 single components. On this blog, you can take a look on my work and later, after my studies, hopefully you can see me in Formula 1.

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