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Technofix Construction Sets

Technofix was a simple construction system using rods joined by connectors. It was made in Germany from 1928 to probably the mid 1930s

Manufacturer / Distributor

Kosmos Baukasten, Stuttgart, Germany

Info from the Metal Constructional Systems Database for TECHNOFIX

System Type
Mainly Rods/Tubes
1928 to known in 1935
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
(see comment *1)
Hole Pitch (Spacing) (mm)
32.0 (see comment *2)
Diameter of holes in Strips(mm)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
3 (see comment *3)
Types of Nuts and Bolts
Nuts: --
Bolts: --
Material/Finish of Nuts and Bolts
--  --
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

3 makers including Kosmos. *1 Various lengths of Rod up to circa.30cm joined by interlocking Connectors (M212a type). *2 In Baseboard. *3 3.5 also reported but unlikely.

Below there are manuals/leaflets and photos which can be downloaded by clicking on the appropriate image.

A Technofix leaflet
(Added 09/12/2018)

A Technofix German Patent
(Added 09/12/2018)

Various photos of the Technofix construction system
(Added 09/12/2018)