'Other' Constructional and Allied Systems Info & Downloads
Necobo Construction Sets
Necobo was a Meccano-like construction system. It was made in The Netherlands in the late 1940s or 1950s to the 1960s.
Manufacturer / Distributor
Netherlands Constructie, Bouw, Netherlands
Later may have been BE & Be, Strykviertel, De Meer, Netherlands
Info from the Metal Constructional Systems Database for NECOBO [a]
Maker
System Type
MECCANO & MÄRKLIN features
MECCANO & MÄRKLIN features
Country
Netherlands
Netherlands
Dates
1950s
1950s
Material
Steel
Steel
Thread
5/32W
5/32W
Boss Type
double-tapped
double-tapped
Boss Thread
5/32W
5/32W
Diametrical Pitch of Gears
25 (see comment *1)
25 (see comment *1)
No. of Parts in System
126
126
Hole Pitch (Spacing) (mm)
12.7
12.7
Diameter of holes in Strips(mm)
4.5
4.5
Diameter of the Bore in Bosses(mm)
4.1 (see comment *2)
4.1 (see comment *2)
Diameter of Axle Rods(mm)
4.1 (probably)
4.1 (probably)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: cheese (slotted)
Nuts: hexagonal
Bolts: cheese (slotted)
Material/Finish of Nuts and Bolts
Brass with a Brass finish
Brass with a Brass finish
Size of the Nuts across Flats (mm)
8.0
8.0
Bolt diameter (mm)
6.0
6.0
Comments
Lid label may have had Gantry Crane with jib pointing to the right, but needs confirming. Early phase with parts to part no. 140 and *1 Mod.1 Gears. *2 or late 1940s. *3 or 4.0.
The MCS document for this system is shown below. It 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
Manufacturer / Distributor
Netherlands Constructie, Bouw, Netherlands
Later may have been BE & Be, Strykviertel, De Meer, Netherlands
Info from the Metal Constructional Systems Database for NECOBO [b]
Maker
System Type
MECCANO & MÄRKLIN features
MECCANO & MÄRKLIN features
Country
Netherlands
Netherlands
Dates
to 1960 (see comment *1)
to 1960 (see comment *1)
Material
Steel
Steel
Thread
5/32W
5/32W
Boss Type
double-tapped
double-tapped
Boss Thread
5/32W
5/32W
Diametrical Pitch of Gears
38
38
No. of Parts in System
201
201
Hole Pitch (Spacing) (mm)
12.7
12.7
Diameter of holes in Strips(mm)
4.5
4.5
Diameter of the Bore in Bosses(mm)
4.0 (see comment *2)
4.0 (see comment *2)
Diameter of Axle Rods(mm)
4.1
4.1
Types of Nuts and Bolts
Nuts: square
Bolts: tapered cheese (slotted)
Nuts: square
Bolts: tapered cheese (slotted)
Material/Finish of Nuts and Bolts
Steel with a Brass finish
Steel with a Brass finish
Size of the Nuts across Flats (mm)
6.4
6.4
Bolt diameter (mm)
6.0
6.0
Comments
Lid label may have boy & H'head Crane with jib to left, but ? (as above). Later phase with more parts & 38 DP Gears. aluminium wide range of parts, MECCANO inspired but some similar to MÄRKLIN & many specials. *1Not made by 1970.
NOTE - This system is covered in the MCS document above, so it is not repeated.
Below there are manuals/leaflets which can be downloaded by clicking on the appropriate image.
An early Necobo manual
(Added 14/01/2020)
A Necobo manual for sets 0-2
(Added 09/12/2018)
A Necobo manual for sets 3-4
(Added 08/03/2021)
A Necobo parts list dated September 1955
(Added 14/01/2020)
Photos of a Necobo set 2a
(Added 08/03/2021)