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Author Topic: Mwynwr Tryciau Colliery - the Many Tricks Mine  (Read 15822 times)

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Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #135 on: March 19, 2020, 04:46:14 PM »
Nice but the trackwork is far too level and well laid to be national coal board, and it's too clean 8)

Alan

In my defence, that's just one Peco turnout - there's plenty of dodgy track nearby!

I juggled the exposure/contrast/shadows/highlights etc to compose a decent picture. (Used to do that in a darkroom and take a day per picture!) B/W is always an impression.

Mike
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #136 on: March 29, 2020, 07:22:10 PM »
Glacial progress at the Many Tricks Mine, speeded up somewhat by global crisis.

A generic winding house has now been frankenbuilt. No prizes for guessing its origins! It's primed and awaits some detail painting then weathering.



I could of course rig up some dummy cables, but I've had these cogs and a motor lying around for a few years, with the intention of getting the pithead's shieve wheels turning:



They're rigged up on a scrap of wood to test the idea, and I've managed to get the final gear turning about once every 2-3 seconds, which is what I'm after.

Anyway that lot needs remounting on something permanent, then fitting either into the winding house, or the pit head building. Lots more mulling to do still!

Mike
« Last Edit: March 29, 2020, 07:59:31 PM by maridunian »
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Online exmouthcraig

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #137 on: March 29, 2020, 07:25:00 PM »
Now that would be fantastic to see winding!!!!!  :claphappy:

Offline mk1gtstu

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #138 on: March 29, 2020, 08:02:48 PM »
Excellent stuff! Would be good to see the winding gear working

Cheers, Stu
My Box File Layout (South Wales Valleys Colliery) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=10430.0

Porthkerry (A South Wales layout in BR Blue) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=39654.0
 
Abercwm Colliery (South Wales Area) https://www.ngaugeforum.co.uk/SMFN/index.php?topic=47521.0

Offline cornish yorkie

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #139 on: March 29, 2020, 09:22:34 PM »
 :hellosign:  :greatpicturessign:
    Agreed, looking forward to more
      stay safe regards Derek.

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #140 on: March 31, 2020, 01:40:52 PM »
Now that I've mocked up the gearbox, my original plan to put the mechanism into the winding house needs rethinking.



It's going to have to go in the pithead building, which is pretty much a closed box, so major surgery required...

There's potential to have a winding engine whose wheels also revolve. The second hand engine shed is not in terrific shape inside, but viewed through glazing it might be good enough.

Lots more mulling...

Mike
« Last Edit: March 31, 2020, 01:41:58 PM by maridunian »
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Online exmouthcraig

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #141 on: March 31, 2020, 01:51:57 PM »
I think it was @chrism who mentioned keeping some brass watch workings for something, with your engineering skills Mike can a brass geared gearbox and motor be built for show through the windows???

Whether that's the working one or just dummied up it would look very realistic  :-X

Offline mk1gtstu

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My Box File Layout (South Wales Valleys Colliery) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=10430.0

Porthkerry (A South Wales layout in BR Blue) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=39654.0
 
Abercwm Colliery (South Wales Area) https://www.ngaugeforum.co.uk/SMFN/index.php?topic=47521.0

Offline maridunian

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My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline mk1gtstu

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #144 on: March 31, 2020, 04:11:08 PM »
Just a thought, would anything like this be worth a try?
https://uk.rs-online.com/web/p/dc-geared-motors/7521999?cm_mmc=UK-PLA-DS3A-_-google-_-CSS_UK_EN_Automation+%26+Control+Gear_Whoop-_-DC+Geared+Motors_Whoop-_-PRODUCT_GROUP&matchtype=&pla-342320486530&gclid=Cj0KCQjw1Iv0BRDaARIsAGTWD1th4T2enD0bXS2gWm11cVBeBkkkbjeXIp9lQDESCvrvJ7MtFUrnEyUaAr0REALw_wcB&gclsrc=aw.ds

It looks quite small to fit into one of your buildings?

Cheers, Stu

Thanks Stu. I'm sure that would save a lot of grief! Will ponder!

Mike

@maridunian Either that or another idea would the motor & gearing you have already built fit underneath your baseboard possibly & run the cables through holes inside the building?

Cheers, Stu
My Box File Layout (South Wales Valleys Colliery) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=10430.0

Porthkerry (A South Wales layout in BR Blue) http://www.ngaugeforum.co.uk/SMFN/index.php?topic=39654.0
 
Abercwm Colliery (South Wales Area) https://www.ngaugeforum.co.uk/SMFN/index.php?topic=47521.0

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #145 on: March 31, 2020, 05:13:45 PM »
Either that or another idea would the motor & gearing you have already built fit underneath your baseboard possibly & run the cables through holes inside the building?

Thanks. Yes, the answer to several problems with the layout probably lie underneath the baseboard, including getting power to odds and ends and accessing my poorly executed tunnel trackwork. My points are all manual. At the moment the MDF 4'x2' baseboard sits on a desk (the surrounding cliff, hill, viaduct concealing some 2"x2"ish timber for stiffness). Raising the baseboard and putting infrastructure under it would be a step-change that would allow a lot of enhancements. Hmmmm....

Mike

My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #146 on: April 12, 2020, 08:48:27 PM »
Well, I mulled some more. I liked @mk1gtstu 's integral gear box (see above). Its output runs at 4 rps, which is quicker than I want, so would want to gear it down some more. Carving up my pithead building or even the baseboard don't appeal, so I mulled.

My first mock up gear train was linear - KISS principle and all that...



I know gear trains can be more compact than that, but I have this random set of gears, so don't know how compact I can make them.

So, I did some not-exactly technical drawing for some not-exactly mechanical engineering....



A squarish arrangement of the four gearsets looked promising, but I've got to watch the height too. Anyway, I needed a stable, square structure to try this with, and a Dapol wagon box has a few square faces....

 

So, starting with the motor in the bottom left hand corner, I began adding gears one-by-one, marking and drilling axle holes as I went. A couple of hours later, I'd replicated the gear train more compactly:



It seems to work OK - keep an eye on gear 4 which will be the winding axle:

https://youtu.be/dL-wYzHvAuc

Next step is to replicate this mounting as a 3D print in nylon (ie Shapeways Flexible Plastic) so that everything is square and all axles run parallel in low friction "bushes".

Mike







My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #147 on: April 17, 2020, 07:43:24 PM »
Exploring the joys of gear trains, especially how they can be condensed into a smaller space. I've been using TinkerCAD.com to experiment and design a gear box for 3D printing.

Here's an improved design:



And hollowed out to reduce material used and make the motion more visible:



Added to my draft Janus shunter order from Shapeways....

Mike
« Last Edit: April 19, 2020, 02:11:36 PM by maridunian »
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #148 on: April 23, 2020, 11:51:04 AM »
And in the flesh (well, Flexible Plastic anyway.. )



Mike
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

Offline maridunian

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Re: Mwynwr Tryciau Colliery - the Many Tricks Mine
« Reply #149 on: April 26, 2020, 01:13:53 PM »
That's better!



And it runs more smoothly too...

Mike

« Last Edit: April 26, 2020, 01:17:03 PM by maridunian »
My layout: Mwynwr Tryciau Colliery, the Many Tricks Mine.

My 3D Modelshop: Maridunian's Models

 

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