'Other' Constructional and Allied Systems Info & Downloads

Select System Type      Select Country      System Text Search
(1206 systems found)

Flex Construction Sets

Flex was a simple constructional system. It was similar to Trix, but the parts did not have as many holes. It was made in the Netherlands in around 1946.

Manufacturer / Distributor

An unknown company from Netherlands

Info from the Metal Constructional Systems Database for FLEX (Ref:FLX)

System Type
as TRIX (inc MCX) and Hole pitch >12.7mm
Steel / Aluminium (Alloy) / Card
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
10 (see comment *1)
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
Types of Nuts and Bolts
Nuts: --
Bolts: --
Material/Finish of Nuts and Bolts
--  --
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

The only set known has flexible steel Strips with 2 rows of staggered holes, an aluminium Angle Girder, & a card Plate. Parts are held together by rivet with lobes which are bent down after insertion.

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

NOTE : If the 'Other Systems Newsletter' pages for FLEX do not appear in the window below, then refresh the page.

The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

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

A Flex set manual.
(Added 08/11/2019)