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Efel(3) Construction Sets

Efel(3) was an unusual construction system with slotted strips and plates. It was produced in France from around 1946 to 1948


Manufacturer / Distributor

Ets. Martinaud et Co., 33 Quai Arloing 33, Lyon 5, France


Info from the Metal Constructional Systems Database for EFEL [3] (Ref:EFL3)

Maker
Gédé
System Type
Hole pitch <12.7mm
Country
France
Dates
1946* to known in 1948 (see comment *1)
Material
Aluminium (Alloy) (see comment *2)
Thread
M4
Boss Type
single-tapped
Boss Thread
 
Diametrical Pitch of Gears
--
No. of Parts in System
31
Hole Pitch (Spacing) (mm)
15.0 (see comment *3)
Diameter of holes in Strips(mm)
4.2
Diameter of the Bore in Bosses(mm)
4.1
Diameter of Axle Rods(mm)
3.9
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: cheese (slotted)
Material/Finish of Nuts and Bolts
Aluminium (Alloy) with a Aluminium (Alloy) finish
Size of the Nuts across Flats (mm)
7.1
Bolt diameter (mm)
6.0

Comments
Slotted parts. Most lids have 2 boys with models, but also models with head & shoulders of one. *1*2 1950s & 1960s have also been suggested. *3 Set with steel & coloured parts also exist. *4 10.0 & 20.0 crossways.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

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


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


An Efel(3) manual
(added 14/11/2018)

Various photos of the Efel(3) construction system
(added 14/11/2018)