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'Appetite Mine' - Gn15
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 Posted: Wed Feb 10th, 2021 03:55 am
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2foot6
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Does that make him a bright spark or is the voltage around 50 Volts?


I used to work on live 48 Volt DC power at 100 to 4000 Amps,

no problem, just don't short the cables.





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 Posted: Thu Feb 11th, 2021 03:19 am
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Larry G
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Thanks Michael

https://www.youtube.com/watch?v=du-n0E3i648&t=21s

This is the one I was looking for. 


I have identified a spot,
where I can potentially add a cable hauled operation similar to the one in this video.
It would be a simple back and forth bit of animation.

I'll need to mull this over,
to see if I can figure out a good way to make such a feature operate realistically.
Just what I need, another large project.


Also watched the video of the overhead wire line.
This is about as rinky-dink as you can get.

Judging by the cars bouncing around,
track maintenance is not high on the list of things to do.

Larry Gant


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 Posted: Thu Feb 11th, 2021 03:54 am
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Michael M
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Notice all the kick switches they use.

Woodie used some sort of cable line on his Mogollon Railway,
to assist locos in getting up a steep incline. 

Might be worth taking a look at his thread.




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 Posted: Thu Feb 11th, 2021 07:48 pm
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Larry G
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I need to find a place to have a kick switch or two.
Maybe on the top deck of the vertical hoist.

No frogs to build and no guard rails.


For my proposed cable hauled line,
I was thinking of a continuous loop of heavy duty thread,
with the cars tied into the thread.

Would need to find a motor with a gear reduction head,
to move the cars at a realistic speed.

All very doable, I think.


LG


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 Posted: Fri Feb 12th, 2021 12:21 am
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Larry G
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​Thanks to all who sent me "boxes" to print out.

I now have plenty of needed "boxes".
 
LG
 

 



 



 

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 Posted: Fri Feb 12th, 2021 08:43 pm
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Larry G
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For anyone wanting to print some boxes,

this is what I was working with.  

LG

 
 
 








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     Posted: Wed Feb 24th, 2021 04:42 pm
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    Larry G
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    Progress has been realized with this small retaining wall.
     




    And this larger wall.
     




    Also, the concrete footings for a future trestle have been added.
    Notice (lower left) more footings for same trestle.
     




    A safety railing has been added on top of this wall.
     




    A one hole out house has been built, still needs a door.
     




    Rebuilt this building in a shortened configuration.
    Working on what comes next, on the left side.
    Needs roofing, windows and doors.
     




    Finished painting a dozen nude figures from Shapeway.
    The Big Stone Lodge is looking much more populated these days.
    The building, on the hill, still sits unfinished.
     




    My largest project has been the new tipple structure at the Kurtis Mine.
    As usual, for me, it still needs windows.
     




    The large opening is to allow the installation of a mechanism,
    to dispense "ore" into the cars bellow. 
     




    This is all, for now.
     
    Larry Gant
     

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       Posted: Fri Feb 26th, 2021 08:57 am
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      oztrainz
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      Hi Larry,

      Some suggestions to minimise spillage at your ore loader -

      1 - Keep the end of the chute as close as you can to the top of the skips carrying the ore.
      This minimises the amount of free fall and having "ricochets" that escape the wagon sides.

      2 - Design your delivery chute such that any tendency of the ore delivery system,
      to allow the ore stream to travel horizontally is deflected downwards into your skip.

      3 - From the lower end of the ore delivery chute attach a curtain of fine chain,
      around the chute that hangs to just inside the ore skips.
      This keeps the ore falling straight down into the skips,
      minimises the chance of any "rebounds" from escaping the confines of your skip,
      and fans out across the load as the skip reaches capacity.
      Yes I've seen this work very effectively in 1:1 scale.

      4 - I've seen loaders where access is restricted to wagons of be loaded only.
      Perhaps a sign "Ore wagons ONLY" on either side of your loader

      It's a lot easier making working loaders if everything you drop ends up in the wagon,
      as it should, rather than being "sprayed" around your loader foundations.




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       Posted: Fri Feb 26th, 2021 03:29 pm
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      Larry G
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      Thanks for the advice John.

      Engineering the loading mechanism will take me some time.
      I first need to find a geared down motor to run the machine.

      I am thinking a rotating brush just at the exit in the bins bottom,
      should control the flow of "ore".

      A curtain of chain sounds like a great idea,
      and I already have some chain on hand.

      All three of my mines will be needing a similar mechanism.

      Back to the 'train room' for me.

      Larry Gant


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       Posted: Sat Feb 27th, 2021 02:40 am
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      oztrainz
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      Hi Larry,

      Check out those in the 3V Tamiya educational range :

      https://www.tamiyausa.com/shop/educational/educational-construction/?page=1

      Most of these are 1.5 to 3V motors, they can be a bit noisy, but they are cheap,
      and you can easily play with the gear ratios to get higher torque/lower output RPMs.

      I've used these motors when building test rigs for my Corrimal Colliery Incline layout.
      They were cheap, available and expendable.
      See :

      https://www.youtube.com/watch?v=nXicbZs_dWQ

      Specifically check the newer micromotor range :

      https://www.tamiyausa.com/shop/educational-construction/mini-motor-gearbox/

      With 8 possible ratios.

      https://www.tamiyausa.com/shop/educational-construction/low-current-motor-gearbox/

      3-ratio but lower current draw.
      Or :

      https://www.tamiyausa.com/shop/educational-construction/mini-motor-low-speed-gearbox/

      With a huge +600:1 reduction for a 9 RPM "flat out" speed that fits into a 1"x1" cube.

      Just for giggles, check out :

      https://www.tamiyausa.com/shop/educational-construction/power-shoveldozer/none/

      I've built one of these, a standing G-scale operator fits into the "cab area" really well.
      If you've got a rock heap that needs moving??
      But a one of those scoop buckets will fill several of your G-scale skips.  :bg:

      The brush idea can work, have a look at this loader in Gn15 :

      https://www.youtube.com/watch?v=jvIXFzCLBJQ

      Steve used a rotating paint roller for his loader.




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      John Garaty
      Unanderra in oz
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