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Mechanix (4) Construction Sets

Mechanix(4) Construction metal construction sets were Polylong(1a) type sets. The boxes say that they were made in China on behalf of the UK company B&M Retail Ltd. These sets were being sold in B&M stores from late 2020 to 2021.

The models are identical to some of the Metal Tech models, so these sets are obviously supplied through RMS International.


Manufacturer / Distributor

B&M Retail Ltd who imported via RMS International from China


Info from the Metal Constructional Systems Database for POLYLONG [1a] (Ref:PLY1a)

Maker
 
System Type
as EITECH/CONSTRUCTION
Country
China
Dates
2004 to in production in 2022 and continuing
Material
Steel
Thread
M4
Boss Type
push fit
Boss Thread
----
Diametrical Pitch of Gears
25 (see comment *1)
No. of Parts in System
50 (approximately)
Hole Pitch (Spacing) (mm)
10.0
Diameter of holes in Strips(mm)
4.2 (see comment *2)
Diameter of the Bore in Bosses(mm)
---
Diameter of Axle Rods(mm)
4.0
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: pan (crosshead)
Material/Finish of Nuts and Bolts
Steel with a Bright Zinc plated finish
Size of the Nuts across Flats (mm)
6.9
Bolt diameter (mm)
6.5(see comment *3)

Comments
Various Sets (see separate list) from one or more unknown Chinese makers. Most parts as Eitech/Construction but some others. *1 Mod.1 & finer for Motor/Gear Unit.. *2 Square holes in some RCEE sets. *3 6.1 & 7.4 also reported.

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

NOTE : If the 'Other Systems Newsletter' pages for POLYLONG [1a] do not appear in the window below, then refresh the page.

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


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


The instructions for the 2in1 set - Motorised construction - Heavy Plant Vehicles.
(Added 26/01/2021)

Several photos of the 2in1 set - Motorised construction - Heavy Plant Vehicles.
This set could make the two models at the same time. They contained two electric motors and battery boxes. All the coloured parts are plastic.
(Added 26/01/2021)

A Photo of the 2in1 set - Motorised construction - Car and Bike.
This set could make the two models at the same time. They contained two electric motors and battery boxes. All the coloured parts are plastic.
(Added 26/01/2021)

The instructions for the 4in1 Aircraft set.
(Added 26/01/2021)

Several photos of the 4in1 Aircraft set.
This set could make all four models at the same time. All the coloured parts are plastic.
(Added 26/01/2021)

A Photo of the 4in1 Vehicle Construction set.
This set could make all four models at the same time. All the coloured parts are plastic.
(Added 26/01/2021)