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Big-Joy Construction Sets

Big-Joy was a Trix-like construction system. It was made in Australia in the early 1930s


Manufacturer / Distributor

A.M.K. Manufacturing Co., Melbourne, Australia


Info from the Metal Constructional Systems Database for BIG-JOY

Maker
 
System Type
as TRIX (inc MCX)
Country
Australia
Dates
known in 1933
Material
Steel
Thread
 
Boss Type
no boss
Boss Thread
----
Diametrical Pitch of Gears
--
No. of Parts in System
12
Hole Pitch (Spacing) (mm)
7.8 (some significant doubt)
Diameter of holes in Strips(mm)
3.6 (some significant doubt)
Diameter of the Bore in Bosses(mm)
---
Diameter of Axle Rods(mm)
--- (Screwed Rods or Bolts are used as axles.)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: tapered cheese (slotted)
Material/Finish of Nuts and Bolts
 
Size of the Nuts across Flats (mm)
Bolt diameter (mm)
 

Comments
Generally TRIX-like but nickel or chrome parts, & poor quality. Pulley Disc has no holes & a Rubber Ring fits a made-up pulley. Card Windmill Blade.

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


There are currently no manuals, leaflets or photos etc. available for downloading. If you can supply any, please get in contact with me.