Thanks for your kind words.
Currently I'm without phone and internet at home, because my provider changes the entire cable based system from analog to digital.
I think, i will have full access in two weeks again.
Only with the mobile phone it's a pain to upload photos, or editing posts.
So don't worry about missing photos.
Nevertheless I want to explain my steering/braking system a bit further.
Especially how to operate four brakes with two handles.
As you may have seen, I haven't mounted brake levers to the handlebar yet.
The front brakes are operated by pulling the entire steering column backwards, including handlebar.
Here you can see the partially built "brake lever" (A-frame) at the front end of the steering column ( the tube going through the ply bulkhead).
Shortly behind the brake lever the steering lever is mounted, which is linked to the center quadrant via push/pull-rod.
Here the brake lever is more complete with one cable attached yet, but still missing the sleeve mounts.
It's in working condition now, I just have to take new photos.
I'll post them later.
The systems plus:
Very short braking cables (40cm/16in left and 75cm/30in right)
what keeps the operating friction low.
And I have the handlebar still free for the rear brake levers.
Cons: Obviously a complicated system, still in need for some refinement.
Rear disc brakes will be hydraulic, due to excessive cable length. Either manually operated with brake handles or by pedalling backwards.
Then I'll mount a 180° turned freewheel to the slack side of the chain.
The photos are linked from
this blog post with some more pics and explanation.
PS: Basic weight is close to my goal, 65kg.
It will have around 70kg when complete, due to the extra weight of the two NuVincis and some bling.