TR Meine neues Aluminium-Trike

[Ivo]

AW: Meine neue Trike Aluminium.

Seat excluding trike:

Wow. I mean... WOW! Nice seat, and a nice trike. Cannot wait to see more pics. I really like your new machine.

What is that element you used to attach the shock? Homemade? It looks like an element from a handrail.

 

[Reah]

AW: Meine neue Trike Aluminium.

Wow. I mean... WOW! Nice seat, and a nice trike. Cannot wait to see more pics. I really like your new machine.

What is that element you used to attach the shock? Homemade? It looks like an element from a handrail.

It's a part from Siemens fast system for telecom communication (to make bridge which carry wires). Tubes also from ...

 

[bastianschulz]

AW: Meine neue Trike Aluminium.

cracks me up to see that it needs a smart Russian Dude to do the one (obvious) thing that a whole bunch of German "specialists" sitting at the very lap of Siemens components (more like: producing/concieving) did not-find a pragmatic and adaptive way of building a bike frame.
Big round of applause from this side of town.

btw: Did you have the lattice work supporting the seat cnc'd? making my mouth water just looking at it ...

 

[Ewok]

AW: Meine neue Trike Aluminium.

cracks me up to see that it needs a smart Russian Dude to do the one (obvious) thing that a whole bunch of German "specialists" sitting at the very lap of Siemens components (more like: producing/concieving) did not-find a pragmatic and adaptive way of building a bike frame.

That's odd, really. With Erlangen (Siemens' main location) being a city in the firm grasp of cyclists...

 

[Reah]

AW: Meine neue Trike Aluminium.

btw: Did you have the lattice work supporting the seat cnc'd? making my mouth water just looking at it ...

Seat consist of :

• Four longitudinal frames,
• four cross-section
• and one big overlay

.

All is cut out on the laser

Siemens part:

 

[Reah]

AW: Meine neue Trike Aluminium.

Well and at last a question: what is it?

https://www.velomobilforum.de/forum/imgcache/2542.png
https://www.velomobilforum.de/forum/imgcache/2538.png

 

[Reah]

AW: Meine neue Trike Aluminium.

https://www.velomobilforum.de/forum/imgcache/2544.png

 

[Jan Ringelstein]

AW: Meine neue Trike Aluminium.

Hi Reah,

a very unique trike with consistent style! Shows that advanced trike building is more than engineering - it's a process of art. If I'm not mistaken, you even specifically designed a sead pad! Very consistent color desgin, too. The colors you used are very similar to what I've planned for my own one, so thanks for proving that combined orange and black just kicks ass!

Seat would be a bit too high for me, though, and the machine seems quite big overall. But eventually you'll need this for the crowded russian roads. Hope to hear some riding reports soon!

Well and at last a question: what is it?

The red thing seems to be a tube cutter. The rest looks like an assistant assembly for - cutting round tubes ? This confuses me since most trike tubes are square. Someone else got an idea?

Jan

 

[Reah]

AW: Meine neue Trike Aluminium.

Hi Reah,
Seat would be a bit too high for me, though, and the machine seems quite big overall. But eventually you'll need this for the crowded russian roads. Hope to hear some riding reports soon!
Jan

First riding was successful, but I found some problem related to chainline. (for this moment it already changed...).
Steering is very sharp, sensitivity very high... It's a next goal to tuning...

The red thing seems to be a tube cutter. The rest looks like an assistant assembly for - cutting round tubes ? This confuses me since most trike tubes are square. Someone else got an idea?

Jan

Of course, red is a tube cutter. But the rest for flat metal....
https://www.velomobilforum.de/forum/imgcache/2566.png

 

[Ivo]

AW: Meine neue Trike Aluminium.

So, it´s a sheet metal bender?

 

[Reah]

AW: Meine neue Trike Aluminium.

So, it´s a sheet metal bender?

Yes.
In the centre of this assembly two bottom pipes on furniture rollers from OBI (has then replaced with bearings). On a photo top pipes it is dismantled.
If bend metal sheet slowly, gradually drawing the top pipe it turns out very well.
PS I bent sheet aluminium of 2 mm. for a seat back...

 

[Reah]

AW: Meine neue Trike Aluminium.

Hope to hear some riding reports soon!
Jan

At last the first successful driving on trike today has taken place.
After last change of a configuration of a chainline to twist pedals became easily and silently !

http://alexreah.blogspot.com/

 

[Ewok]

AW: Meine neue Trike Aluminium.

So you have got less noise and pedal resistance thanks to a new, better chainline. Good to hear.

How is braking? The centre of gravity looks critical on the picture.

 

[Reah]

AW: Meine neue Trike Aluminium.

So you have got less noise and pedal resistance thanks to a new, better chainline. Good to hear.

How is braking? The centre of gravity looks critical on the picture.

Yesterday, just at the first stop left disk was jummed . It happened because of the fact that the left kaliper was installed incorrectly. And it because I did not take into account that the kaliper working surface deployed at 45 degrees to the mounting. Therefore, the right kaliper been installed without problems, but the left was able to attach to only one bolt (for testing)...

I had to remove the front left disc and therefore front brakes did not work.
It was found that the brake only the rear brake is ineffective and even dangerous at high speeds. When you try to stop at the speed of the rear brake Trike starting slidin rear axis and a great chance of overturning.​

 

[Klopfer]

AW: Meine neue Trike Aluminium.

Die Anbringung der Feder für die Hinterradschwinge ist m.M.n in der dargestellten Form problematisch:
Die Hebelkräfte sind ein vielfaches dessen, wofür die Feder bei üblicherweise axialer Krafteinleitung ausgelegt ist. Bei kräftigem Einfeder kann sogar passieren, dass der Nullpunkt überschritten wird. Die Schwinge schnellt dann noch oben bis das Federlager gegen das Sitzrohr knallt.

Ob dann noch Bodenfreiheit gegeben ist, ist fraglich. Auch, was mit dem Kindersitz passiert, wenn das HR dann von unten dagegenrammelt.
Schadensfrei wird das sicher nicht ablaufen.

Kann's leider nicht besser erklären (und in englisch erst recht nicht - vielleicht übernimmt das jemand).

 

[Reah]

AW: Meine neue Trike Aluminium.

Die Anbringung der Feder für die Hinterradschwinge ist m.M.n in der dargestellten Form problematisch:
Die Hebelkräfte sind ein vielfaches dessen, wofür die Feder bei üblicherweise axialer Krafteinleitung ausgelegt ist. Bei kräftigem Einfeder kann sogar passieren, dass der Nullpunkt überschritten wird. Die Schwinge schnellt dann noch oben bis das Federlager gegen das Sitzrohr knallt.

Ob dann noch Bodenfreiheit gegeben ist, ist fraglich. Auch, was mit dem Kindersitz passiert, wenn das HR dann von unten dagegenrammelt.
Schadensfrei wird das sicher nicht ablaufen.

Kann's leider nicht besser erklären (und in englisch erst recht nicht - vielleicht übernimmt das jemand).

Der automatische Übersetzer nicht hat sehr gut übersetzt, aber ich habe den allgemeinen Sinn verstanden.
In der Praxis hat es sich herausgestellt, dass die Bemühung, die die hintere Aufhängung auf das hintere Rohr beifügt von jener Bemühung kompensiert wird, die den Sessel leistet.
Auch hat bestimmt ammo der sehr kleine Lauf und die hintere Aufhängung sehr selten wird so zusammengepresst, dass der Kindersessel das Rad betrifft. Aber manchmal betrifft immerhin. Deshalb wird der Kindersessel nach anderem bestimmt sein. Bis ich denke, wie es besser ist, es zu machen.
PS hatte ich noch auf dem Stadium project Befürchtungen, dass trike mit dem sitzenden hinten Kind sehr labil wird. In Wirklichkeit zeigte es sich, dass es keine Probleme mit der Immunität gibt.


The automatic translator has not so well translated, but I have understood the general sense.
In practice it was found out that the effort which is applied by a back suspension bracket on a back pipe is compensated by that effort which renders an armchair.
Also established ammo the low shift and a back suspension bracket has very much is very seldom compressed so that the children's armchair concerns wheels. But sometimes all the same concerns. Therefore the children's armchair will be mounted on another way. While I think, how it is better to make it.
PS I at a stage scetching had fears that trike with the child sitting behind will be very unstable. It has in practice appeared that no problems with stability are present.

 

[Klopfer]

AW: Meine neue Trike Aluminium.

IMHO it should be like this:

 

[Reah]

AW: Meine neue Trike Aluminium.

IMHO it should be like this:

Es passt nicht ammo . Bei dieser Option, die Kraft muss über die Zwischen-und ammo Pendel sollte sich zwischen dem Sitz und einer schiefen Rohr.​

It does not fit ammo. In this variant, the force must be transmitted through the intermediate pendulum and ammo should be located between the seat and an inclined tube.

I have this option is provided, and there is mounting on the frame for the pendulum. But I am quite satisfied the vertical location of ammo. I think limited to modifying the attachment of child seats, as it relates to the wheels due to the fact that his native attachment to a flexible and depreciated. May be inclination of child seat can be enough.​

 

[Klopfer]

AW: Meine neue Trike Aluminium.

Die Kräfte müssen möglichst axial in das Federbein eingleitet werden.
Bei deiner Konstruktion ist es aber schon fast tangential!
So wirken enorme Kräfte und es besteht die Gefahr, dass die Schwinge nicht gehalten werden kann und unter dem maximalen Einfederungspunkt durchschlägt.
(Vielleicht kann jemand mit besseren Englischkenntnissen das mal erklären - es droht eine Kindersitzschleuder!)

 

[Ewok]

AW: Meine neue Trike Aluminium.

(Vielleicht kann jemand mit besseren Englischkenntnissen das mal erklären - es droht eine Kindersitzschleuder!)

Looks like a job for English Intensive Course Man.

@ Reah:
He says you need to make sure that the force from the road hits the shock unit in an axial direction (lengthwise).
But with your current construction, the impact is almost tangential (sidewise)!
This means there are tremendous forces involved, more than the shock can handle. So you risk that the swingarm cannot be held back and strikes right over the maximum point of (shock) travel.

And by the lovely term "Kindersitzschleuder" Klopfer meant that if the swingarm then snaps towards your back, it might eject your child like a MIG's catapult seat.