Feldbahnmodule with ship

[Bernhard]

Nice parts!

Bernhard

[1-32]

Hi Frithjof.
Wonderful.
I really don't think you should paint any of this, just use a bit of solid colour and a styled presentation much like what you would see at a top-line museum.
cheers Kim

[fspg2]

To drill the six 0.8 mm holes in the "gear carrier tube", I milled a corresponding recess in a 20 mm thick Pertinax plate and inserted the brass part with the long neck facing downwards. Fixing it in place with masking tape was completely sufficient, nothing shifted during drilling on the CNC milling machine.

Antriebszahnrad 12 (fspg2)



The same Pertinax plate also helped with the vertical soldering of the M0.8mm hexagon screws. In the following picture, only a drop of soldering water is missing before the resistor solderer went into action.
 
Antriebszahnrad 17 (fspg2)



After inserting them into the corresponding holes in the base plate, a first functional test rotation followed.
The result looked satisfactory.

Antriebszahnrad 13 (fspg2)



A Faulhaber geared motor is to provide the rotation.
There is a choice of either a 2225V024S with a 243:1 reduction ratio or alternatively a smaller 1616E018S with a 485:1 reduction ratio.
The animation shows a vertical and a horizontal installation.

Antriebszahnrad 14 (fspg2)

(In the enlargement you can see the details better without disturbances : 1st click on the picture, then a 2nd click in the gallery that appears)


I favored the horizontal installation of the 1616 Faulhaber.
Let's see whether the 15 seconds calculated for a 360° rotation at 18 volts can be achieved - a little mass has to be moved, after all!
     
Antriebszahnrad 15 (fspg2)


Antriebszahnrad 16 (fspg2)



Here you can see the motor mount for the 1616 Faulhaber motor. The exact alignment of the gear wheels is done later in the crane housing.

Motor Drehachse 01 (fspg2)

[Bill Gill]

 Good to read that the first rotational test went well - It's alive!

[finescalerr]

And it's perfect. -- Russ

[fspg2]

Thanks Bill

@Russ

And it's perfect.

Unfortunately not quite perfect
Thanks to a tip from a model builder friend, I have already changed the fastening screws to nuts with washers in the drawing.

neu: Mutter mit U-Scheibe 01 (fspg2)


neu: Mutter mit U-Scheibe 02 (fspg2)


Fortunately, I had not yet soldered the guide tube for the pinion shaft to the base of the crane housing. This makes it easier for me to unsolder the M0.8mm screws and replace them with the nuts.



To build the handrails on both sides, railing supports (40mm long with 3 pull-throughs) were purchased from the local model ship dealer. These have a ball diameter of 2.5mm. However, I drew a diameter of 2.0mm.

Handlauf 01 (fspg2)



I obtained the 12 required holders from three supports. After cutting off the two lower sections, they were clamped in the pillar drill to round the ball cleanly.
A small Pertinax jig held the three holders vertically when soldering them to the 1.0 mm brass rod.

Handlauf 02 (fspg2)



I had already planned the space for the brackets on the door frame of the crane housing and had not pressed any rivets there. Unfortunately, however, I had only drilled the holes on one side of the housing on the milling machine... why was it forgotten on the opposite side...?

So once again a drilling template helped.

Handlauf Bohrschablone (fspg2)



Handlauf 03 (fspg2)



Handlauf 04 (fspg2)



However, I don't find the result at all convincing. The ball of the holder simply seems far too large in relation to the diameter of the rod.
!

Handlauf 05 (fspg2)


So I will probably look for smaller holders again.

[Bernhard]

Frithjof, you are a real perfectionist!

Bernhard

[Lawrence@NZFinescale]

However, I don't find the result at all convincing. The ball of the holder simply seems far too large in relation to the diameter of the rod!

Hi Frithjof

Always a pleasure to catch up on progress. I imagine your nuts/boltheads will never be seen when the model is complete :-)

Attached is a drawing (sorry about the quality) of some knobs for a locomotive.  No relation to your crane, of course, but I imagine handrail and knob dimensions did not vary much. Perhaps your proportions are not right, but the real pedestals were often tapered and had a flange at the base.  As here, for the fixing nut to clamp against, or with screw holes for attaching to wood. Adding a flange (from a washer maybe), would probably improve the look of what you have.

However this model is great because of your uncompromising approach and execution, so I'm sure you will find a good solution.

It won't surprise you to know that mine is to print and cast them.  Attached are some in 1:64 for a 0.4/0.5mm wire.  The holes do not form especially well, but they do form and can easily be broached out. This would work better in your larger scale. Curiously handrails on passenger cars seem to be 7/8", while on locomotives 1 1/4".  I suppose the former need to allow for smaller hands.

[fspg2]

@Bernhard
Thank you - I'm happy to return the compliment! Your parts are simply phenomenal!!!

@Lawrence
Many thanks for your always helpful tips and also for the great drawing!

I imagine your nuts/boltheads will never be seen when the model is complete :-)

That's true, but I know that;-)

...so I'm sure you will find a good solution.

The good solution has been found at Volker .... but the post has not yet arrived after three days (normally it usually only takes one day). I will report back as soon as I have the parts in my hands.

So far I had only soldered the screws into the lower crown of the guide tube for the pinion shaft and not into the base plate of the crane house.
They could be removed quickly.

A small 6.0 mm thick HPL block was provided with corresponding holes and served as an assembly aid when soldering the 8.0 mm long 0.8 mm screws.

neu: Mutter mit U-Scheibe 03 (fspg2)


neu: Mutter mit U-Scheibe 04 (fspg2)



I then sanded down the screw heads on a sandpaper board.
I was then able to insert the resulting threaded rods with soldered-on washers and nuts into the guide tube...

neu Mutter mit U-Scheibe 05 (fspg2)



... and solder them.


neu: Mutter mit U-Scheibe 06 (fspg2)



Here is another size comparison with a 1€ cent:

neu: Mutter mit U-Scheibe 05b (fspg2)



Work also continued slowly on the upper struts of the cantilever.

Auslegerverstrebung 01 (fspg2)



Auslegerverstrebung 02 (fspg2)



To make it easier to round the 0.8mm and 1.0mm wire pins into rivet heads, I milled an auxiliary jig once again.

Auslegerverstrebung 03 (fspg2)



This allowed me to insert the wire ends vertically into 0.9mm and 1.1mm blind holes and insert all the individual parts into the corresponding recesses...  (instead of 0.8mm and 1.0mm - after soldering everything was easier to remove !!!)

Auslegerverstrebung 04 (fspg2)



...and connect with a little solder and soldering water. After rounding and sandblasting, it looked like this:

Auslegerverstrebung 05 (fspg2)



As a test, the two side parts were loosely positioned in the holes provided in the gusset plates - and it fitted without having to bend anything.

Auslegerverstrebung 06 (fspg2)



Auslegerverstrebung 07 (fspg2)

[finescalerr]

If it wasn't perfect before it's perfect now. -- Russ

[Bill Gill]

Your dedication to this project is incredible.

[Bernhard]

That looks great!
By the way, can you tell me where you got the big sprocket?

Bernhard

[Ray Dunakin]

Most impressive!

[Hauk]

Its a pure joy to follow this build.
Thanks for sharing, Frithjof!

[nk]

Crikey that is fine work.