Jul302012

DFT Moves on Own Wheels

Published by Chris Draper at 8:06 AM under Diesel Locomotives

Big Milestone yesterday. The DFT moved on its own wheels for the first time. Clearance and suspension tests passed with flying colours and the old motivation has been given a needed shot in the arm.

 



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Jul232012

Trackwork & General from July 2012

Published by Chris Draper at 5:50 PM under Steam Locomotives | Track Construction

July has been a bit wet and cold to do much outside, but when the pot belly stove is fired up and food smells are wafting through the shed - we dont mind!



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Jul062012

Custom Springs for the Diesel

Published by Chris Draper at 4:29 PM under Diesel Locomotives

Suspension was always going to be tricky for my diesel, but luckily I found a company that took all the hard work away. Spring Specialists here in Auckland who custom make any spring from cellphone keypad to heavy duty truck springs.

I specified the diameter had to be just less than the 24mm pocket size, the free length should be 70mm and when compressed to 50mm long it should be supporting a design weight of 30kg.

From that information they calculated the spring wire size (3.5mm), and recommended a diameter of 20mm so the spring had some space to flex as it compressed as well as allowing for the side to side movement of the axleboxes in the horns (up to 5mm each way). They could not have been more helpful.

They appologised for charging a setup fee for such a small order (20) and produced them in 2 days for $9 each. Great value in my book.

When I turned up to collect them today they also showed me part of their extensive 'odds and ends' collection they have and welcomed me back to delve into it should I find the need.

Great Service from a local company.



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