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Bob(2) Construction Sets

Bob(2) was a construction system using rods and plates and was made in the France. Very similar systems were also made in the UK (Bob(1)) and Switzerland (Bob(3)), with each country having a slightly different system. It was produced in France from 1942 to at least 1952.


Manufacturer / Distributor

Inventor: Jean Perinel, Annemasse, 30 rue du Chablais, France
Manufacturer: J.J.F., 44 Rue Lavoisier, Mulhouse, France.
Distributed by M.R. Maury, Agence Générale, 1 Boulevard de Strasbourg, Paris, France


Info from the Metal Constructional Systems Database for BOB [2]

Maker
 
System Type
Mainly Rods/Tubes
Country
France
Dates
1942 to 1952 (see comment *1)
Material
Steel / Aluminium (Alloy) (see comment *2)
Thread
3.0x.6
Boss Type
double-tapped (see comment *3)
Boss Thread
M4 (see comment *4)
Diametrical Pitch of Gears
--
No. of Parts in System
40 (approximately)
Hole Pitch (Spacing) (mm)
Variable
Diameter of holes in Strips(mm)
3.2
Diameter of the Bore in Bosses(mm)
3.1
Diameter of Axle Rods(mm)
2.9 (see comment *5)
Types of Nuts and Bolts
Nuts: --
Bolts: cheese (slotted)
(see comment *6)
Material/Finish of Nuts and Bolts
Aluminium (Alloy) with a Aluminium (Alloy) finish
(see comment *7)
Size of the Nuts across Flats (mm)
---
Bolt diameter (mm)
4.9

Comments
Joints marked BOB brass.SCDG. *1 & 60l reported. *2 Wooden Wheels, card Plates in early sets. *3*4 & s, 3x.6. *5 & 3.0 (steel). *6*7 In Joints, & slotted cheesehead plain steel 5.0; in boss: slotte roundhead plain steel, Bolt Head Diameter=7.3, & slotte roundhead plain steel 5.5.

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

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


A Bob(2) instruction manual for set 0.
(02/03/2021)

A Bob(2) instruction manual for set 1.
(02/03/2021)

A Bob(2) instruction manual for set 2.
(02/03/2021)

A Bob(2) instruction manual for set 3.
(02/03/2021)

A Bob(2) instruction manual for set 4.
(02/03/2021)

A Bob(2) instruction instruction leaflet for special models.
(02/03/2021)

A Bob(2) instruction instruction leaflet for the aircraft motor.
(02/03/2021)

The Bob(2) catalogue No.4.
(02/03/2021)

The Bob(2) catalogue No.5.
(02/03/2021)

A Bob(2) leaflet.
(02/03/2021)

Photos of Bob(2) sets.
(02/03/2021)