3 Foot 6 Models Mechanisms for HOnz
3 Foot 6 Models will soon start producing our own mechanisms for HOnz (HOn3.5) models.
As well as a growing community in New Zealand, there is also significant demand for HOn3.5 mechanisms overseas, for prototype locomotives (the Queensland Railways 1400 class, and the Newfoundland Railway / Canadian National G8 class), similar to New Zealand’s own early and rebuilt EMD variations (NZR’s DA, DB, DC and DBR classes).
Why mechanisms?
Because we want to give HOnz modellers more than just a shell.
They deserve a model that runs, runs smoothly and looks the part. Previously, many of our customers had to source mechanisms from local or overseas suppliers, or adapt parts from other models, which often meant compromises in scale, performance, or cost. By designing and producing our own mechanisms, using standard parts, we’re solving that problem head-on. Customers will be able to buy:
3D printed shells
Etched detail parts (including some handrails)
Decals
This move also reflects our commitment to local innovation. With access to high-resolution resin printers and a growing network of collaborators, we’re now able to produce mechanisms that match the unique specifications of New Zealand railways prototypes -something no international suppliers can offer.
My philosophy is:
Gears, worm drive and cardan connectors and shafts are all standard, so can be easily replaced
Bogie side frames can be removed and changed as needed
Wheelsets standard HO wheels, correctly sized, on 12mm gauge
Aluminium 3D printed chassis for weight
Dual-flywheel motors
Copper wipers for electric pick-up
First up, I will be releasing a chassis for Neil Ward’s DL class design, followed by an A1A bogie (similar to the one pictured above) for a DA / DB / DBR / DC chassis (and of course the QR 1400 class and CN G8 class).
I’m taking pre-orders for both designs now:
Pre-order the DL class kit here.
Pre-order the A1A chassis here.
The DL class is expected to be completed by the end of 2025, A1A chassis by Q1 2026 (i.e. 31 March).
Pictures of the DL class chassis are below.
DL class chassis, with one cardan drive fitted