[nickelminers]

Hi Norm,

with regards to the issue of toxicity/flammability of resins for composites:
Unsaturated polyester resin (the one type used for 99% of marine fiberglass) contains volatile organic components, and it has a certain smell of styrene monomer. The amount of styrene generated while playing with polyester is definitely below the limit of EU occupational standards, but, if used in the confined space of an apartment, well above the threshold value of divorce. Anyhow, modern polyester has much lower volatiles than before. Polyester (before polymerization) has a medium level of flammability; does not ignite with a match, but insisting with a torch for some minutes, yes, it burns.

Epoxy resins are 100% solids 2-component materials, virtually free from volatile components, and have a very modest smell. In fact we use epoxy, outdoor and also indoor. Our brethrens the aircraft modelers use tons of epoxy, usually indoor. Unpolymerized epoxy has a medium/low level of flammability. Before igniting, it generates fumes, as any other plastics.

The unpleasant side of resins is that they stick to almost everything (with the exception of polythene, polypropylene, and fluoroplastics), including the operators' hands. Again, always use latex gloves when playing with resins, and carpet everything with polythene film. In the unfortunate event the resins get in touch with garments, they must be cleaned immediately with solvent (acetone or nitrocellulose thinner). As soon as the resin polymerizes, it becomes insoluble (and the garment becomes a solid piece of composite).

Personally, we consider cyanoacrylate glue much more unpleasant than epoxy or polyester. CA is eye-irritant, has a strong smell, and, being its polymerization water-catalyzed, has a very nasty affinity for the human skin (a stray stain of CA glues fingers together in one second). But OK, we also use CA, with the mandatory use of eye protection and latex gloves.

Regarding model railroading in Italy, yes, it is a popular hobby (maybe a bit less than in Germany or other EU Countries). We have some EU-level modeling shows in Verona and Milan, and some good local exhibitions.

Sincerely

Mario & Bice

 

[nickelminers]

Dear friends,

attached please find some old photos of the construction of the barrel of our rotary railcar dumper. The issue was :

• The barrel has 5 supporting flanges.
• The device that keeps the railcars into position during tippling of the barrel is actuated by a long 1.2 mm shaft, made of piano wire, supported by 5 small journal bearings (obtained from brass tubing with a lathe).
• There is virtually no access with vernier caliper or other measuring devices, to produce 5 aligned holes in the 5 flanges
• The shaft is too long and flexible to allow a "brute force" alignment (oversized holes for the bearings, shaft and bearings into position, one ton of solder to fasten the bearings to the flanges)
So, we opted for homemade laser alignment. The laser source was a laser pointer, installed onto a photo tripod and put level. One first hole was made on one of the outside flanges, the barrel was put level, the laser beam shot through the first hole to the correct point onto the second flange. Second hole made (slightly oversized, at a slightly skewed angle, using a flexible shaft) , laser beam onto third flange, and so on.
Then, the shaft with its 5 bearings on was inserted into the 5 holes, bearings were soldered into position.

The following photos show the final verification of the alignment of the 5 holes (bearings into position). Note that each small hole diffracts the light into a slightly divergent cone, and each successive bearing remains illuminated. Each diffraction step scatters energy, and (at least with a commercial small LED-laser), it will be impossible to go beyond ca. 10 holes in 1 meter.

http://www.flickr.com/photos/[email protected]/.../in/photostream
http://www.flickr.com/photos/[email protected]/...in/photostream/
http://www.flickr.com/photos/[email protected]/...in/photostream/
http://www.flickr.com/photos/[email protected]/...in/photostream/

One photo was shot in the darkness, and shows the aligned spots of light (they should be small rings of light - the edge of the bearings), but the resolution of the camera in the semi-darkness was not enough. In another photo, the laser beam exiting from the 5 aligned holes, ends up onto a curtain.

Later, we also used laser alignment for the installation of the 2 rails inside the barrel. The rails were 2 30-com sections extracted from a Peco code 83 rail, fastened upside-down with the correct spacing to a template made of Plexiglas. Then, thin strips of "permanent" 2-side adhesive mounting tape (the one used to mount metal panels, nameplates, etc.) were mounted onto the base of the rails. Then, one of the rails was aligned by hand with the laser beam, and the 2 rails put in contact with the metal "floor" of the barrel. While playing with permanent-bond-tape, only one attempt is allowed. Once the tape touches the surface, cannot be removed. Finally, the template was removed. And, by the way, the 2 rails remain electrically insulated from the metal frame of the barrel.

http://www.flickr.com/photos/[email protected]/...in/photostream/

The photo shows the final verification of alignment of the rail section, with the laser.

Afterwards, we have also used laser levels for aligning the 4 sections of our layout when installed onto uneven floors at exhibitions. The system is simple and effective. We have also used laser levels for "more useful home maintenance jobs" such as alignment of framed pictures, installation of shelves, furniture, etc. ;-)

With the best wishes from Italy

Mario & Bice

 

[silky_jack]

Amazing!

 

[nickelminers]

Dear all,
in the last months we had virtually no time for modeling. But, some weeks ago, our old friend Massimo Peroni, president of the model railroading club "I Fontanili" of Caravaggio, northern Italy, has invited us and the Consolidated Nickel Mines Co. layout for a photo session with the mythical Benedetto Sabatini of TuttoTrenoModellismo, one of the leading magazines. In short, Benedetto ("Big Benny" for the friends) could only pay a visit to Caravaggio on Wednesday 8 May evening. So, during the previous weekends, in the limited available time, we moved our layout. First, it had to be placed at the club, but the photographer complained about the crammed available space around the layout. So, Mr. Peroni offered to host the layout at his country home, and we installed the contraption in his huge garage. Wednesday evening we met. Everybody (including us) was late, but finally we unloaded one carload of Benedetto's photo gear, and we shot photos from 9 p.m. till midnight. The session itself was fun, and some beers kept the spirits up. Benedetto complained about the poorly lit environment, and started using flashlights that seemed strong enough to incinerate the whole building. After some shots, everybody was complaining and wearing sunglasses. In the following days, we sent by e-mail the history and description of the layout to Benedetto, and the article itself is expected in the issue of July of TTM. In the reference list of our description, we mentioned also modelrailforum.
Herewith, some photos, with the Nickel Queen preparing one load of ore, and Benny shooting photos (amusing, to take photos of a guy who takes photos&#8230

https://flic.kr/p/8727938657 https://flic.kr/p/8728044783 https://flic.kr/p/8728029887 https://flic.kr/p/8728018929 https://flic.kr/p/8728011643
Now, our layout remains dormant at Mr. Peroni's place (not so dormant, we are pretty sure that Massimo will operate it). We will be rather busy in the next months, and, this year, we will participate only to the Famasuisse 2013 event in Bulle, Switzerland, from 16 to 17 November. Everybody's invited.
Sincerely
Mario & Bice

 

[nickelminers]

Dear friends,
After a long period of idleness, we have begun to do some remedial work to our layout. One long-postponed modification had to be done to the rotating-cone doing units that feed the ore from the silos to the conveyors. As in reality, these units have rotating cones that slowly turn inside a conical seat. The cones are driven through a quill drive, and they are kept at a constant pressure against the seat by springs. The output is controlled by cone RPM, and spring tension. One drawback of our dosing units was that the cones and their shafts did not have a definite travel limiter, to keep a certain "idle" opening of cones when the silos are empty. The drawback: when the silo goes inadvertently empty, it takes some time (ca. 30 seconds) before the system grinds in some ore granules and starts again with the correct flow. During this embarrassing long pause, when the equipment does not spit out granules at the correct pace, there is always somebody asking "does not work? " A more serious consideration is that, as in reality, the "maximum" opening of the cones must not be travel-limited, but only spring-loaded, in order to cope with possible out-of-spec (large) pieces of ore, or solid contaminants. Without spring-loading, large contaminants would block the unit.
So, we have installed screw-controlled travel limiters. They are small screws that act on the top end of the shaft that drives the cones. These screws limit the backward movement of the shaft. The shafts go out to the top of the silos, and the idea to hide the screw of the travel limiter has been that of building a scaled-down jackscrew unit. This design is not so far from that of real-life mining equipment (at least, we think so..) As seen in the attached photos, the jackscrew is made of a cylindrical core with 2 flanges and 4 stringers. All the pieces were made from brass rods and 0.8 mm steel sheet, with lathe and milling machine. The stringers are made of 1 mm steel wire. The flanges accept a small screw, which protrudes into the bearing of the driving shaft, and acts as travel limiter. The most challenging part of the construction was the simultaneous soldering of 7 pieces of metal, keeping everything in position. Wooden templates did the job. The boring part was removing the excess solder. As usual, we did it with our flexible shaft and micro milling bits. The smallest bits we used in this job were 0.6 mm, both round and cylindrical.
The attached photos are self-explaining. One jackscrew is installed onto the top of our silo no. 1. Now, the same job will be done with the silo no. 2. We hope that the "learning curve" effect will speed up the job, which is more or less the copy of the one of silo no. 1.
Best wishes from Italy
Mario & Bice

https://flic.kr/p/9262348079 https://flic.kr/p/9262325643 https://flic.kr/p/9262317395 https://flic.kr/p/9265095766 https://flic.kr/p/9262302449 https://flic.kr/p/9265071874 https://flic.kr/p/9265082496 https://flic.kr/p/9262312933 https://flic.kr/p/9262359165

 

[Brian Considine]

Some nice miniature engineering there - thanks for showing it to us.

 

[David Todd]

QUOTE After a long period of idleness............

Always good to read, Thanks for your update............

 

[Norman Byrne]

Hi Guys'

As always a fascinating read & excellent pics of your work. It sounds like you had some great fun on the "photo shoot" evening / night, & most importantly plenty of giggles ! Also sounds like you have found a new temporary home for the layout & would be "driver" whenever you may nee it LOL !!!!!!

The engineering detail of your layout always astounds me - first class.

Thanks for the posts & enjoy your summer, Cheers,

Norm

 

[nickelminers]

OUR NEXT EXHIBITION:

Dear friends,

after repeated changes in our plans, it is now confirmed that we will take part as exhibitors to the MODELGAME 2013, from Friday 15 November to Sunday 17 November in BOLOGNA, ITALY. Website is: www.modelgame.it
Our "Consolidated Nickel Mines Co." layout will be together with other layouts in the "American Railways" section of the show. And now it is time to do some remedial works on the layout....

If you plan a trip to Italy, consider a detour to Bologna (besides the show, consider the famous specialties and good wines of the region...)

Sincerely

Mario & Bice

 

[nickelminers]

Dear friends,

The remedial and maintenance works begin at Consolidated, in preparation of the next shows. The layout has been slightly damaged during transportation. To begin with, some trees need substitution. As usual, we use raw materials having zero cost: natural lichens of various types, taken during our recent holidays in the Austrian Alps, and small shrubs and dry vegetals taken from the coastal areas of the Mediterranean.
We try and simulate the real-size shrubs and trees of the dry Arizona sub-desert. Tools are scissors, cotton thread, tweezers, some cyanoacrylate glue. A great help is the fact that Bice (aka the Nickel Queen), despite being a professional accountant, also had attended in her youth evening courses at the Brera Academy. She is the official family artist ;-)
Following photos are self-explanatory. The work itself is (relatively) amusing, and leaves room to fantasy.

https://flic.kr/p/9980866906 https://flic.kr/p/9980832104 https://flic.kr/p/9980845214 https://flic.kr/p/9980867475 https://flic.kr/p/9980899814 https://flic.kr/p/9980888465 https://flic.kr/p/9980921854 https://flic.kr/p/9980911155 https://flic.kr/p/9980985756 https://flic.kr/p/9981065913 https://flic.kr/p/9981029686 https://flic.kr/p/9980995354 https://flic.kr/p/9981004524 https://flic.kr/p/9981127793 https://flic.kr/p/9981027474 https://flic.kr/p/9981038744 https://flic.kr/p/9981159623 https://flic.kr/p/9981170893
To be noted, the micro-grass that appears on the blocks of decomposed red fir wood is formed by particular types of moss. The moss stays alive and green as long it is watered. So, one of the chores of the Consolidated layout is periodic micro-watering of the patches of green vegetation (with a small soft brush and a water cup). Not a particular problem if this moss dries up. Upon re-hydration it becomes green again.

We'll keep you posted

Mario & Bice

 

[nickelminers]

Double thumbs up for the Model Game 2013 and its organizers. Non-professional exhibitors have been accommodated in a nearby business hotel, free parking spaces for exhibitors have been set up just outside of the halls, and logistics has been really top-notch. Two halls full of any kind of modeling stuff, boats, cars, planes, and trains, trains, trains.
To be noted, another parallel event was taking place in a nearby hall, the Cake Show 2013. Yes, it was unlimited cakes, sweets, chocolate. The waves of smell permeated also our hall, momentarily distracting the dedicated modelers.
Anyhow, after a reasonable 3-hour drive from Milan we arrived in the morning of Thursday 14. Our layout suffered the usual minor damage in transportation, and the usual phase of curses and last-minute repairs during assembling followed on. This time we have decided to do some last-minute addition to our landscape, adding spires and balanced rocks to the assembled layout. The rocks were kept in place with cyanoacrylate and weathered on the spot with hairspray and pigments. These pieces have been then removed for transportation at the end of the show. Let us say that natural erosion causes continuous changes to our landscape….
In parallel, we have also done an experiment with light: filtering the light of our 4 floodlights (with pieces of colored plastic sheet) we tried and manage a change from the warm light of sunset/sunrise to the bright white light of noon time, to the colder and darker hues of twilight. Some of the following photos show the effect.

Twilight at Consolidated
https://flic.kr/p/10951072756 https://flic.kr/p/10951186294 https://flic.kr/p/10951102806
Sunset light
https://flic.kr/p/10951283973
Clear sky, machinery bathed in sunlight
https://flic.kr/p/10951062695
Tides of visitors to the stand
https://flic.kr/p/10951238654 https://flic.kr/p/10951147566
The sun goes down, the night shift starts
https://flic.kr/p/10951261404
Enthusiastic overfilling of hoppers and primary silo; time to stop hoist operations and leave the conveyors to get rid of the tons of ore
https://flic.kr/p/10951343253 https://flic.kr/p/10951355603
Rotary dumper in operation
https://flic.kr/p/10951199646 https://flic.kr/p/10951143405
Positioner and rotary dumper in operation
https://flic.kr/p/10951392113 https://flic.kr/p/10951170825 https://flic.kr/p/10951182355
A flying object has fallen in one of our cars and must be removed…
https://flic.kr/p/10951363414
The Nickel Queen overseeing the loading operations
https://flic.kr/p/10951418604
The Arizona sandstone glows in the sunset light
https://flic.kr/p/10951529613 https://flic.kr/p/10951300415 https://flic.kr/p/10951496584
Backstage, with some last minute repair visible…
https://flic.kr/p/10951509024
The dumper area and the loading section before sunset
https://flic.kr/p/10951905363 https://flic.kr/p/10951927183
Sunset lights again
https://flic.kr/p/10951703085 https://flic.kr/p/10951882624 https://flic.kr/p/10951964883
One loaded train moves from the loading area to the rail link
https://flic.kr/p/10951810366 https://flic.kr/p/10951821046 https://flic.kr/p/10952006713 https://flic.kr/p/10951944954
Dumper operations
https://flic.kr/p/10951973534 https://flic.kr/p/10951985584
A just-unloaded train motoring along the rail link
https://flic.kr/p/10952067143 https://flic.kr/p/10951840285
Spires, balanced rocks and mesas glowing red in the sunset
https://flic.kr/p/10951920916 https://flic.kr/p/10952135483 https://flic.kr/p/10952147293 https://flic.kr/p/10952089584
The smell from the nearby Cake Show momentarily distracts the Nickel Queen, and then she takes charge again. Hoist and conveyors work flat out around the clock
https://flic.kr/p/10951935045 https://flic.kr/p/10951949045
A somewhat colder hue of light on Consolidated's site
https://flic.kr/p/10952094716 https://flic.kr/p/10952208474 https://flic.kr/p/10952220494
The underground section of the hoist, in operation
https://flic.kr/p/10952136106
Vegetation and signs around our site
https://flic.kr/p/10952149346 https://flic.kr/p/10952093705 https://flic.kr/p/10952103815
Different lighting conditions, as the daylight fades away
https://flic.kr/p/10952352973 https://flic.kr/p/10952365503 https://flic.kr/p/10952304154
Thursday, assembling the layout, and the layout cocooned, ready for the show
https://flic.kr/p/10952229215 https://flic.kr/p/10952285926
After 3 full days of exhibition we were dead tired, but definitely 100% satisfied. Sunday 17 at 7 pm the exhibition closed, and disassembling begun. As usual, it took 3 hours to disassemble the layout and load our car. We went back to our hotel, had a quick dinner, and slept like babies till Monday morning.

With best wishes from Milan

Mario & Bice

 

[nickelminers]

Maintenance at Consolidated Nickel:

Over the years,our layout has reached its 40th day of operation at shows. This means some 360 hours of continuous operation of the mining equipment. To this, we must add at least 100 hours for tests and trials. Over the years, the drives of the equipment and the belts of the conveyors have been changed, but now it is time for general maintenance. We have carefully disassembled the elevator tower, the two silos, the conveyor belt no. 2, and taken everything home. Meanwhile, the layout sleeps at our garage.

First: conveyor belt no. 2. We disassemble everything:
https://flic.kr/p/11138771756 https://flic.kr/p/11138904853
The belt is still OK, but, surprisingly, the pulleys are worn out. These pieces were machined from rods of carbon fiber/epoxy. The idle pulley can be re-machined, but the driving pulley must be replaced.
https://flic.kr/p/11138879023 https://flic.kr/p/11138743096
We decide to make a rubberized driving pulley, since the resilient rubber wears out more slowly (and has better grip). After checking the available materials (from our good old pile of scrap, invaluable source of goods), we select rubber pieces from an old printer, one 5-mm rod of carbon, and pieces of 1-mm carbon sheet.

We insert the hollow cylinders of rubber onto the carbon rod (previously bored to 2 mm with negative tolerance), and fix with cyanoacrylate. Now, take it down to the specified diameter (8 mm). To be noted: rubber cannot be machined with a lathe. Solution: the rubberized pulley goes to our milling machine, and is fastened to the vertical spindle. Tangentially, we fix our "good" flexible shaft (the one with no backlash) onto the turret of the milling machine, connect the flex-shaft to an electro-spindle, and begin to play with grinding wheels of different size and shape.
https://flic.kr/p/11138757904 https://flic.kr/p/11138687046
Surprisingly, it works. The best combination is ca. 5,000 RPM on the piece and 15,000 RPM on the grinding wheels. With careful passes, 0.1 mm at a time, the rubber goes off spectacularly in a fine dust (that, charged electrostatically, sticks everywhere) and leaves a clean finish. The core or the pulley is then machined on its two faces to the required width.
https://flic.kr/p/11138818943
Then, the end flanges are installed, made of 1-mm carbon sheet, and pre-bored at 2-mm. the flanges are aligned with the help of a piano wire, and glued with cyano to the 5-mm carbon core, now coated with 1.5 mm of rubber. With the same tangential grinding wheel arrangement we machine the flanges to their diameter, thickness and profile.
https://flic.kr/p/11138622535 https://flic.kr/p/11138668104 https://flic.kr/p/11138735873 https://flic.kr/p/11138611465
We rebuild the shaft of the driving pulley. In the older one we had a weird 2.2 mm diameter, and we decide to use a more conservative diameter: 2-mm steel wire. We re-assemble everything. Meanwhile, we turn the idle pulley to a more "round" shape, and, to take it again to its nominal diameter, we "rubberize" it with a piece of electrical heat-shrink pipe. OK it works. It has taken less time than machining a new pulley starting from zero.
https://flic.kr/p/11139353193 https://flic.kr/p/11138507575 We remove the older bearings of the driving pulley, bore the frame of the conveyor to 3 mm, install a piece of 2 x 3 mm brass tube, weld it (so the 2 bearings will be aligned), cut it with cutting disk obtaining the 2 separate "bearings". We do some de-burring.
https://flic.kr/p/11138661003
Some welded joints in the lattice of steel wire that makes the frame of the conveyor have failed. We have to re-weld. We machine the soldered joints with flexible shaft and milling bits, then we do a thorough cleaning of all the metal parts with a spray gun loaded with light naphtha at 4 bar (operation done in open air in our terrace). This removes all traces of soldering flux, dust, etc.
https://flic.kr/p/11138534716 https://flic.kr/p/11138747515 https://flic.kr/p/11138503856
And then, we re-assemble. The 2-mm shafts are pressed into the flanges of the pulleys, and this is enough to keep everything in place and transmit the required torque. Next part to overhaul will be the silo n. 2.

Best wishes from Milan

Mario & Bice

 

[nickelminers]

Maintenance of the silo n. 2.

After disassembly, all the pieces appear in good shape and within the required tolerances. We ara very happy, no need to re-machine parts. Here, just after opening, the large crown gear that drives the rotating-cone feeder is visible.
https://flic.kr/p/11239629895
Further disassembly of the silo shows one ton of dust. The innards ,with the shaft of the feeder, are visible. To be noted, the soldering of the inner parts, inaccessible with a soldering iron, had been done with indirect heating from outside.
https://flic.kr/p/11239726413
Cleaning of the pieces, a relatively easy job, with light naphtha in a spray gun (relatively, since the spray made one small part flew away and disappear amidst the foliage of our terrace&#8230
https://flic.kr/p/11208444554 https://flic.kr/p/11239722714
Silo re-assembled, gleaming in the winter sun
https://flic.kr/p/11239713124 To be noted, some lighting has been added to the second platform of the silo
https://flic.kr/p/11239706066
Check of the wiring. And obviously, something is wrong. The LEDs of the second platform have been installed with the wrong polarity, opposed to that of the first platform.
https://flic.kr/p/11239703634
Not much of a problem; the lighting of these LEDs got electricity from 2 small 1.5Volts batteries in series. There will be one common ground, (-) of the first platform, and (+) of the second platform . In the end, 2 sets of batteries, and one more wire-wrap wire will feed electricity to the 2 platforms. That is (modeling) life.
https://flic.kr/p/11239685934
To be noted, the ground of our silo no. 2 is also the (-) of the drive of the dosing unit. Our LED lighting needs a source of electricity totally separated from the rheostat-regulated feed to the drive.

Next step will be re-installing the silo and conveyor onto the layout.

With best wishes from Milan

Mario & Bice

 

[ebaykal]

Hi Mario, wonderful stuff. Please plan to stay longer in Istanbul the next time we need to exchange ideas and your expertise in these movable models which are plenty in Maden.

Erkut&Abd

 

[nickelminers]

Hallo Erkut, hallo Abd,
you can count on it. I will try and stay in IST during weekend in January or February. All the best.
Mario

 

[nickelminers]

Dear colleagues,
maintenance goes on at Consolidated.
The overhauled machinery must be installed again at its place. We head to our garage and work on our caisson.
https://flic.kr/p/11481620473 We do not want to unload/unpack everything; we remove only one side and creep inside. In Italian slang, we call it a "rat's job". The machinery is fastened to the base with 1-mm miniature screws, which take on threaded metal inserts in the base.
https://flic.kr/p/11481527734 After some attempts, all the screws are in place. Due to the limited accessibility, it took some time, sweat, and curses.
https://flic.kr/p/11481515604 Next step, we have to rewire the LED circuit. The caisson stays on its side, and the Nickel Queen removes the old hardware.
https://flic.kr/p/11481720053 Four battery holders give electricity to the independent parts of the LED circuit. As explained before, due to a mistake in the wiring of the silo no. 2, the resultant wiring has become more complex.
https://flic.kr/p/11481658506 This is like something from a B-movie: do I cut the red wire or the black one?
https://flic.kr/p/11481643466 Field test; batteries inserted. The photo was taken sticking the camera into one narrow aperture of the various sections of the layout, still packed together.
https://flic.kr/p/11481656363 Caisson re-packed and hibernated.
https://flic.kr/p/11481781993 To be continued. There is still some more interesting maintenance to be done at Consolidated.
Sincerely
Mario & Bice

 

[nickelminers]

Dear colleagues,

We will again exhibit Consolidated Nickel Mines Co. at the Erlebniswelt Modellbau 2014, from 17 to 19 January 2014 in Kassel, Germany.

https://flic.kr/p/11483821903
Everybody is invited.

All the best wishes for a happy New Year to you and your families, and all the best for your model railroading activities

Sincerely yours

Mario & Bice

 

[Yukun Zhang]

Hi From Yukun

I liked the layout and I was amazed with the functional part of rolling over the wagon to get the dirt out. I really like it!!! I have a question about the video. What brand of the video recorder did you use?? What name is the video recorder???

 

[nickelminers]

Hallo Yukun,
if you mention the videos indicated in our previous posts, we were not the ones behind the camera. The video indicated in our post of 2 January was recorded by the German TV chain SWR during the Intermodellbau 2012. Cameraman was Mr. Andres Stirl of Modellbahn TV. The indicated link sends you to SWR's website. The videos indicated in our post of 3 January were taken by a Dutch gentleman named Flemming Ormstrup. He was the one posting the videos on Youtube. The indicated links send you to Mr. Ormstrup's videos.
Sincerely
Mario & Bice

 

[Yukun Zhang]

Hi
Thank you for this tip!!