January 4, 2019
Description
2020-04-06: A KAELBLE - tractor to pull is now published here: https://www.thingiverse.com/thing:4791958
2019-03-06: Added the missing mounting for the drawbar.
In the early 1930s the German railway engineer Johann Culemeyer started to
develop a trailer-system to transport freight wagons to companies without direct
connection to the railway network. His idea was to move the hole wagon to
simplify the logistics of these companies. Culemeyer developed several different
trailers to transport wagons on streets, also self-driving models. During the
1950s and 1960s more than 150 trailers where in regular service in Germany and
served hundreds of companies at about 120 cities.
In the development of the trailers two factors were important: To build the
trailer as low as possible to make it easy to load and unload the wagon and to
pass also bridges with a low clearance. The other factor was to reduce the
pressure on the street surface. The maximum weight of the model shown was 48
tons. So, the trailer used 16 wheels to keep the pressure of one wheel at 3 tons
to avoid problems with the toughness of the street surface.
CULEMEYER trailers were used by the railways in Germany until the late 1980s,
but in most cases, they had been replaced by container-systems earlier.
Prototype Pictures by Dietmar Eichhorn.
https://en.wikipedia.org/wiki/Johann_Culemeyer
https://de.wikipedia.org/wiki/Stra%C3%9Fenroller (German)
http://www.mitteldeutschesbahnforum.de/t7308f16-Culemeyer-in-Salzmuende.html
(pictures showing the loading of a wagon in 1989)
The model is designed using the sketch found in “Die Eisenbahn ins Haus” (The
Railway to Your Door) by J. Culemayer for the 1936 16-wheel model. This version
was used by the East German Reichsbahn until 1990.
The model consists of two different chassis -parts which are connected by a rod.
The “female” chassis also contains the brake-cylinder and an air-tank.
The model is only useable with NEM or fine-scale 1-gauge wheelsets. LGB
(G-scale) wheelsets will not match in most cases.
The model shown is printed in regular PLA. The wheels are made of TPU. Printing
the wheels, I got best results printing only one item on the build-plate. This
avoids stringing and unwanted effects on the wheel-surface.
The wheels should be mounted to 4mm metal- shafts (30mm long)
Both chassis parts are connected by a 4mm shaft. I used metal -rods for these
parts.
License:
Creative Commons - Attribution - Non-Commercial
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ccs66
