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GWR 6 Wheeled Siphon Chassis (Part 1) 3d printed

Not a Photo

White Strong & Flexible Polished
GWR 6 Wheeled Siphon Chassis (Part 1) 3d printed
GWR 6 Wheeled Siphon Chassis (Part 1) 3d printed

Not a Photo

GWR 6 Wheeled Siphon Chassis (Part 1)

  • 3D printed in White Strong & Flexible Polished: White nylon plastic polished to reveal a smooth matte finish.
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Product Description

00 Gauge, 1:76, 4mm/Foot

My GWR six wheeled Siphon kits comprise three parts, a Chassis (Part 1) Main Body (Part 2) and Roof (Part 3) which are designed to clip together. Parts 1 and 3 are common to both Diagrams O2 and O4.

This chassis (Part 1) has been designed to use HORNBY R8264 14.1mm Coach Wheels with "Romford" 2mm plain or shouldered brass bearings (neither supplied). I would recommend removing the flanges from the centre wheel set (unless your points and layout have very shallow curves).

On some prints I have found that the brass bearings are a very tight fit so I would recommend that the bearing holes are cleaned out with a fine sharp object (pin) to ensure there is no dust from the manufacturing process. In addition, remember to apply pressure directly to the axle box either side of the running board to avoid damaging the latter. 

The chassis is provided with NEM coupling pockets.

To complete the model, you will need the following:

Part 2 the Siphon body of your choice, (Diagrams O2 and O4 are currently available);
Part 3 Roof;
Buffers, wheels, couplings, paint, and transfers.

I would also recommend adding weight to improve running.


A one-piece print for the underframe only

What's in the Box
GWR 6 Wheeled Siphon Chassis (Part 1)
White Strong & Flexible Polished
11.1 cm
1.7 cm
3.5 cm

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