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Author Topic: Cheap and easy permanent coupling  (Read 431 times)

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Offline Cooper

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Cheap and easy permanent coupling
« on: May 12, 2018, 08:39:22 pm »
I have some 3D printed wagons that have no pre-supplied or fitted couplings. I wanted them to run as a fixed rake and talked the options (brass ‘staples’ etc) over with @PostModN66. The inability to fix a staple from above, and wanting to avoid the cost of fixing NEM pockets led him to suggest 20lb strain fishing line. It is flexible for curves, and yet has linear rigidity for propelling moves.







A simple ‘staple’ of the fishing line, inserted into holes drilled into the superglued plasticard inserts I had intended to mount the NEM couplers on has sufficed. The spacing shown allows running both pulling and pushing around 9 inch curves. I have a video I will post next of them running, although foolishly I didn’t video them pushing, but they happily did so. 

Offline Cooper

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Re: Cheap and easy permanent coupling
« Reply #1 on: May 12, 2018, 08:50:48 pm »
https://youtu.be/MhO1Ad3HiFs

https://youtu.be/GY3mZGg2Hio

Two videos of them circuiting on my clubs N gauge layout (along with an NGS getting a test run in the opposite direction). They were propelled through the pointwork around the curves here both ends of the layout, with seven wagons behind them. I will continue to test the limits, but it seems to work for my purposes!

Offline N Gauge Bob

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Re: Cheap and easy permanent coupling
« Reply #2 on: September 28, 2018, 09:47:58 am »
Caught this topic a bit late!!!
I run several rakes in fixed formation. These are set up in groups of 10 with a DG (my preferred choice) on either group end for shunting / splitting consist.
The centre groups are held together with a simple hook and eye system. The wagon has on one end a simple upright angle piece of wire drilled and glued into the wagon headstock. The other end has a square U shape eye also attached to the headstock. Height is easy to adjust by bending any component up or down, and by pure chance the hook will also couple up to a DG which is quite useful.
My longest rake using this method is 80 Peco mineral wagons with real coal loads and only once have I had a split!!!!
HTH
Cheers
Bob
Remember this:
Amateurs..............built the Ark!
Professionals........built the Titanic!

Offline Railwaygun

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Re: Cheap and easy permanent coupling
« Reply #3 on: September 28, 2018, 09:56:55 am »
Any chance of a picture?
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Offline N Gauge Bob

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Re: Cheap and easy permanent coupling
« Reply #4 on: September 28, 2018, 09:59:12 am »
Not very good at piccies, but visiting friend on Monday will assist
Cheers, Bob
Remember this:
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Professionals........built the Titanic!

Offline N Gauge Bob

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Re: Cheap and easy permanent coupling
« Reply #5 on: September 28, 2018, 11:50:41 am »
One important factor I forgot to mention (old age brain fade).
The joy of this system is that YOU decide how close coupled you would like the wagons.
By taking the sharpest bend on your layout, I find this is often a point or point complex, you can take two wagons, make the hooks and eyes and loose fit them into the pre-drilled holes and they will adjust to the correct and closest possible coupling. Gently lift the wagons off, and measure the amount sticking out from the wagon. I find the easiest is to get as near as possible with the loop /eye and then do the adjustment on the hook. (Often easier to fit the wire and bend after fitting to form the hook.) Remember to keep all wagons the same distance so all will fit with all....using the original pair as a template will assist greatly. I prefer to use iron wire as this tends not to flex in long rakes.
Bob
Remember this:
Amateurs..............built the Ark!
Professionals........built the Titanic!

 

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