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Author Topic: Cowans Sheldon 75T Crane  (Read 7129 times)

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Offline Railwaygun

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Re: Cowans Sheldon 75T Crane
« Reply #30 on: February 15, 2017, 10:26:40 PM »
Thanks for posting those Alex. A first for me - don't think I've ever seen a 3D print at such a raw state before.


i always thought they came out flat like airfix kit sprues! a 2d mindset I think.

are these printed in a tank of monomer with a laser light source?? Stereolithography (SLA)?

http://3dprintingfromscratch.com/common/types-of-3d-printers-or-3d-printing-technologies-overview/

« Last Edit: February 15, 2017, 10:29:22 PM by Railwaygun »
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Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #31 on: February 16, 2017, 10:30:55 AM »
Hello,

I'm glad the immediately post printing photos were of interest! I believe it is a form of  Stereolithography in which resin is cured by a laser light, though I have to admit that is not an area of expertise on my part haha!

Here are some pre-postage photos of the parts separated (excuse the random 'previous' label and arrows, the photos had to be taken from screen shots!):








Hopefully I should receive the crane tomorrow at some stage so can add some photos of it all put together ready for painting!

Thanks,

Alex
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https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline Steven B

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Re: Cowans Sheldon 75T Crane
« Reply #32 on: February 16, 2017, 01:25:30 PM »
Have these been printed commercially (if so where?) or do you know someone with a 3d printer. The finish looks a lot better than Shapeways manage.

Are you modelling an specific prototype? The reason I ask is that all the runner wagons I've seen with the C&S 75t crane have had a well which allows for the lifting hooks to be stored whist the crane is being moved in a train.

Happy modelling.

Steven B.

Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #33 on: February 16, 2017, 01:29:41 PM »
Have these been printed commercially (if so where?) or do you know someone with a 3d printer. The finish looks a lot better than Shapeways manage.

Are you modelling an specific prototype? The reason I ask is that all the runner wagons I've seen with the C&S 75t crane have had a well which allows for the lifting hooks to be stored whist the crane is being moved in a train.

Happy modelling.

Steven B.

I based it on the Sheldons 75T but without plans I only managed to model what I could gain from photos so its not that accurate!

Cheers,

Alex
My Layout:

Flordon Heritage Railway (currently in the loft!)

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=34537.0

My Current Project:

Reid-Macleod Steam Turbine Prototype

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline RailGooner

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Re: Cowans Sheldon 75T Crane
« Reply #34 on: February 17, 2017, 01:11:55 PM »
I've just noticed that several posts I made to this thread have disappeared.  :-X :uneasy:

Administrator Comment I cleared the thread of posts that the OP no longer wanted on his thread. Feel free to PM me if I've made a mistake. Tank.
« Last Edit: February 17, 2017, 01:28:23 PM by Tank »
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Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #35 on: February 17, 2017, 03:03:29 PM »
Hello all,

So today a battered but intact box turned up. The crane had arrived! I have slotted it together for some photos before cleaning up, priming, painting and rigging takes place!







I designed the crane to have couplings which have been salvaged from some old Lima coach bogies:



The wheels have also been slotted into their plastic bearings and it runs very smoothly indeed, apart from two axles that foul the coupling socket but this should be easily sorted out:)

Thanks,

Alex
My Layout:

Flordon Heritage Railway (currently in the loft!)

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=34537.0

My Current Project:

Reid-Macleod Steam Turbine Prototype

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline Steven B

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Re: Cowans Sheldon 75T Crane
« Reply #36 on: February 17, 2017, 03:44:07 PM »
Where did you get it printed? A friend or a commercial service?

Happy modelling.

Steven B.

Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #37 on: February 19, 2017, 08:24:53 PM »
Hello all,

I have begun the painting process by giving the first two parts a coat of Fiat Yellow! I know it looks a bit stark at the moment but I aim to top up my paints on Wednesday to start highlighting the detail!







Thanks,

Alex
My Layout:

Flordon Heritage Railway (currently in the loft!)

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=34537.0

My Current Project:

Reid-Macleod Steam Turbine Prototype

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline Roy L S

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Re: Cowans Sheldon 75T Crane
« Reply #38 on: February 19, 2017, 08:39:14 PM »
Hi Alex

That really is the most amazing piece of work.

I am sure there would be a lot of interest were you to at any stage offer it through someone like Shapeways.

Regards

Roy

Offline kiwi1941

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Re: Cowans Sheldon 75T Crane
« Reply #39 on: February 19, 2017, 08:56:20 PM »

I am sure there would be a lot of interest were you to at any stage offer it through someone like Shapeways.
Please not Shapeways with their ridiculous postage prices! B
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Eternal paranoia is the price of liberty: vigilance is not enough. Len Deighton.

Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #40 on: February 19, 2017, 09:02:36 PM »
Hello all!

Thanks for the lovely comments!

Just so people know, I will not be selling the crane as the Forum team have been developing a wonderful crane of their own (long before me) with etched accessories and transfers (http://www.ngaugeforum.co.uk/SMFN/index.php?topic=18191.0). Therefore, it would be wrong of me to offer a rival product especially when so much effort has gone into their project!

Thanks again for the compliments!

Alex
« Last Edit: February 19, 2017, 09:13:14 PM by AR »
My Layout:

Flordon Heritage Railway (currently in the loft!)

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=34537.0

My Current Project:

Reid-Macleod Steam Turbine Prototype

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline Skyline2uk

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Re: Cowans Sheldon 75T Crane
« Reply #41 on: February 19, 2017, 10:29:05 PM »
Looks wonderful does this.

Skyline2uk


Offline Paddy

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Re: Cowans Sheldon 75T Crane
« Reply #42 on: February 20, 2017, 05:18:31 PM »
Be still my beating heart - what a superb model.  I can imagine that crane in BR black or red.

Very, very impressed.

Paddy
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Offline AR

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Re: Cowans Sheldon 75T Crane
« Reply #43 on: February 20, 2017, 08:10:23 PM »
Hello,

Thank you all for your compliments!

With a can of Fiat Yellow and some enamels I have begun the detailing process, a very long way to go yet and I wont post an update for every bit, but I thought now its all yellow and first couple of details have been picked out that I would post a couple of photos:)





Thanks,

Alex
My Layout:

Flordon Heritage Railway (currently in the loft!)

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=34537.0

My Current Project:

Reid-Macleod Steam Turbine Prototype

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=45211.60

Offline Milton Rail

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Re: Cowans Sheldon 75T Crane
« Reply #44 on: February 21, 2017, 08:17:23 PM »
Excellent job Alex, hat off to you for the perseverance - you have made a tremendous job of this.  The raw printout photo's reminded me of something out of Mad Max & the badlands!

 

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