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CAD signalling package

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CAD signalling package

Unread postby Bob Davies » Fri Mar 24, 2017 11:08 pm

Can anyone put me on to a 'cheap' CAD package that either comes with railway signalling wiring symbols or where I can create a set of symbols relatively easily.

I am starting on the massive task of designing the wiring for the relay-based interlocking for my forthcoming model railway. I used PowerPoint for the wiring of my 'proof of concept' layout but I have only done a few sheets of the final design and I am already thoroughly fed up with its shortcomings (in an application for which I must admit it was certainly not designed).

If the CAD system can do such nice things as automatically number contacts and produce analyses, that would be great but I suspect that that only comes with 'professional' systems which I could not justify or afford, so I would be happy simply with the ability to knock out relay circuits.

Any pointers would be much appreciated.

[I wondered whether to put this under the Model Railways section but I suspect that most modellers aren't as stupid as me in wanting to do this! Just to give you a feel for the size of this task, I estimate that about 1500 4 c/o varley relays will be involved.]
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Re: CAD signalling package

Unread postby Bob Davies » Sun Mar 26, 2017 9:55 pm

Just to wrap this up so far as I am concerned, I had a good look around on the internet and eventually stumbled across TinyCAD which does everything that I want and best of all is Freeware!!

It is pretty basic so far as railway signalling is concerned (although there is a lot for general electrical engineers) but you can create your own symbol library and I have started a BS376 library of my own. There is not much in it at the moment but if anybody wants to do their own circuit design using this system, I will be happy to share what I have done and perhaps we can build up a more fully-featured library between us.
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Re: CAD signalling package

Unread postby Fast Line Floyd » Tue Mar 28, 2017 5:53 pm

Bob Davies wrote:Just to wrap this up so far as I am concerned, I had a good look around on the internet and eventually stumbled across TinyCAD which does everything that I want and best of all is Freeware!!

It is pretty basic so far as railway signalling is concerned (although there is a lot for general electrical engineers) but you can create your own symbol library and I have started a BS376 library of my own. There is not much in it at the moment but if anybody wants to do their own circuit design using this system, I will be happy to share what I have done and perhaps we can build up a more fully-featured library between us.

I was about to say that I use Microsoft Visio but although fully suited to the task and that it also save in the AutoCAD format, it certainly ain't cheap.
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Re: CAD signalling package

Unread postby David Holden » Wed Mar 29, 2017 4:33 pm

I've used TurboCad, the £40 version. You have to build up your own symbol library etc but quite usable.
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Re: CAD signalling package

Unread postby marka » Sat May 6, 2017 8:37 pm

I can second the TurboCad range having used it for the last 20 odd years, and gradually upgraded the version every coupl of years

cost around £40, for non proffesional version,

if you prepared to take previous vears version (for example 2016 version) is often sold at even less. sometimes just £20

Turbocad has every good support via its website.

PM me if you would like some electrical drawing to BS376 in turbcad.
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Re: CAD signalling package

Unread postby Bob Davies » Sun May 7, 2017 1:14 pm

marka wrote:I can second the TurboCad range having used it for the last 20 odd years, and gradually upgraded the version every coupl of years

cost around £40, for non proffesional version,

if you prepared to take previous vears version (for example 2016 version) is often sold at even less. sometimes just £20

Turbocad has every good support via its website.

PM me if you would like some electrical drawing to BS376 in turbcad.

Thanks for the offer, Mark, but I am now well into the design using TinyCad and, while limited, it does everything that I need so I shall stick with it.
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