'Other' Construction and Allied Systems Downloads

Masterbuilder Construction Sets

Masterbuilder metal construction sets were similar to Meccano. It was made in England from 1946 till the early 1950s. There are two identifiable phases with this system.

Masterbuilder(a) - Early sets (1946 to 1949)


Info from the Metal Constructional Systems Database

Maker
 
System Type
Meccano principle but sig. differences
Country
United Kingdom
Dates
1946 to 1949
Material
Steel / Plastic (see comment *1)
Thread
1/8W
Boss Type
double-tapped
Boss Thread
1/8W
Diametrical Pitch of Gears
40
No. of Parts in System
49 (see comment *2)
Hole Pitch (Spacing) (mm)
12.7
Diameter of holes in Strips(mm)
4.0
Diameter of the Bore in Bosses(mm)
3.9
Diameter of Axle Rods(mm)
3.9
Types of Nuts and Bolts
Nuts: square
Bolts: cheese (slotted)
Material/Finish of Nuts and Bolts
Steel with a Brass finish
(see comment *3)
Size of the Nuts across Flats (mm)
6.4
Bolt diameter (mm)
4.7

Comments
Many parts marked KW+part no.. Plates Bakelite, 3.3mm thick. Early sets may have been called METALWORK with some light alloy parts. *1 For Set 2 (Set 3 largest). *2 Also plain brass Nuts.

There are currently no manuals/instructions available for this phase.


Masterbuilder(b) - Later sets (1949 to early 1950s)


Info from the Metal Constructional Systems Database

Maker
 
System Type
Meccano principle but sig. differences
Country
United Kingdom
Dates
1949 to early 1950s
Material
Steel
Thread
1/8W
Boss Type
double-tapped
Boss Thread
1/8W
Diametrical Pitch of Gears
40
No. of Parts in System
57
Hole Pitch (Spacing) (mm)
12.7
Diameter of holes in Strips(mm)
4.0
Diameter of the Bore in Bosses(mm)
3.9
Diameter of Axle Rods(mm)
4.1
Types of Nuts and Bolts
Nuts: square
Bolts: cheese (slotted)
Material/Finish of Nuts and Bolts
Steel with a Brass finish
(see comment *1)
Size of the Nuts across Flats (mm)
6.4
Bolt diameter (mm)
4.7(see comment *2)

Comments
All parts painted. New parts include metal Perforated & Flanged Plates, but some parts dropped. Many parts have KW+part no. on them. *1 Nuts Nickel plated steel. *2 ½" Bolts are plain brass with 5.4 round head.

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


The Masterbuilder instruction manual for sets 4001 (Baronet), 6001 (Carfax), 8001 (Carrier).