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Roco Construction Sets

Roco was a system using tubes. It was made in Germany in the late 1940s

Manufacturer / Distributor

ROCO Gessellschaft Curt Krause & Co., Germany

Info from the Metal Constructional Systems Database for ROCO (Ref:RCO)

System Type
Mainly Rods/Tubes
Aluminium (Alloy)
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
27.5 (see comment *1)
Diameter of holes in Strips(mm)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
6.4 (see comment *2)
Types of Nuts and Bolts
Nuts: --
Bolts: --
Material/Finish of Nuts and Bolts
--  --
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

6.4mm rolled Tubes held by eyed Connectors which push into the Tubes. *1 Only in a one part, *2 Tubes are used..

Pages from the 'Other Systems Newsletter' which contain information on this system are shown below. They can also be downloaded to your computer if desired here

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Below there are photos which can be downloaded by clicking on the appropriate image.

Photos of the Roco system.