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Working Rotary HO Dumper

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  • Member since
    April 2007
  • From: Ontario
  • 737 posts
Working Rotary HO Dumper
Posted by da_kraut on Saturday, December 1, 2007 9:12 AM

Hello everybody,

was browsing on the internet and ran across this site:

http://members.trainorders.com/pmack/dumper.htm

This is a great piece of work to get a rotary dumper to work in a reliable manner.   Love the ingenuity.Smile [:)]

Frank

"If you need a helping hand, you'll find one at the end of your arm."

  • Member since
    May 2015
  • 779 posts
Posted by Dallas Model Works on Saturday, December 1, 2007 11:37 AM

Saw that page last year but didn't know it had been updated -- thanks for the tip.

What's really impressive are the rotary couplers!

 

Craig

DMW

  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Saturday, December 1, 2007 11:55 AM
Lots of superb modelling throughout that site. I do agree the working rotary dumper and rotary couplers on the coalporters are genius.
  • Member since
    August 2007
  • From: Lake Havasu City, Arizona, now in Guthrie, Oklahoma
  • 665 posts
Posted by luvadj on Saturday, December 1, 2007 12:01 PM

FYI...I can't remember what year ('04, or '05), but N-Scale Magazine ran a how to on scratchbuilding a rotary dumper...it was really detailed, and a good multi-part read.

  

Bob Berger, C.O.O. N-ovation & Northwestern R.R.        My patio layout....SEE IT HERE

There's no place like ~/ ;)

  • Member since
    February 2004
  • From: Boston
  • 2,226 posts
Posted by Budliner on Saturday, December 1, 2007 1:11 PM

I seen an awsome rotary dumper at the train show in MA

I think it was S-Scale/S-Gauge and I got them to fire it up

worked great, he sead it was cable driven and had a fake piston

the guy's told me it was completly scratch built

what a nice detail, only other thing that realy looked good was the awsome bridge on the same layout.

 

K-

  • Member since
    July 2006
  • 177 posts
Posted by corksean12 on Saturday, December 1, 2007 1:25 PM
awesome. I love the idea of actually loading/unloading cars like the prototype. where does the stuff go when its dumped though? or am I looking at this the wrong way and nothing is really dumped and its just all for show?
Modelling a short GWR branch line that runs from West England to a small Welsh community
  • Member since
    July 2004
  • From: Lewiston ID
  • 1,710 posts
Posted by reklein on Saturday, December 1, 2007 3:15 PM
Thats my freind Pauls site. He developed that dumper a couple years ago. He was also working on an operating flood loader and had it working pretty well too. He moved away from here a couple years ago to build models professionally in Seattle.Last I heard he was working for a company in Oregon thats builds models for the movies.
In Lewiston Idaho,where they filmed Breakheart pass.
  • Member since
    May 2004
  • 4,115 posts
Posted by tatans on Sunday, December 2, 2007 9:49 AM

Great rig, and it works too, BUT-- the wiring, it looks like the wiring harness behind the dash of a Super Constellation, my goodness, does it realy take all those gizmos to make it run, well, back to electronics school for another 2 years.

  • Member since
    July 2006
  • 177 posts
Posted by corksean12 on Monday, December 3, 2007 1:32 PM
what are these used to dump? coal?
Modelling a short GWR branch line that runs from West England to a small Welsh community
  • Member since
    February 2004
  • From: Boston
  • 2,226 posts
Posted by Budliner on Monday, December 3, 2007 1:42 PM

that is cool

  • Member since
    July 2003
  • From: Nebraska City, NE
  • 1,223 posts
Posted by Marty Cozad on Monday, December 3, 2007 7:32 PM

 Budliner

 do you have any more 1:1 photos like that? 

 

 Budliner wrote:

that is cool

Is it REAL? or Just 1:29 scale?

Long live Outdoor Model Railroading.

  • Member since
    April 2003
  • 305,205 posts
Posted by Anonymous on Monday, December 3, 2007 8:34 PM

 corksean12 wrote:
what are these used to dump? coal?

Mostly they're used to dump coal at places like steel mills and power plants although anything that can be dumped out of a hopper can be dumped with them such as wood chips for making paper and particle board or stones for ballast.

 

  • Member since
    February 2004
  • From: Boston
  • 2,226 posts
Posted by Budliner on Tuesday, December 4, 2007 7:07 AM
 da_kraut wrote:

Hello everybody,

was browsing on the internet and ran across this site:

http://members.trainorders.com/pmack/dumper.htm

Frank

hey marty, I got it from franks link

it's buried in there, I'll grab a few more

 

Kentium

  • Member since
    February 2004
  • From: Boston
  • 2,226 posts
Posted by Budliner on Tuesday, December 4, 2007 7:14 AM

Coal falls to the hopper below.

 

 The car indexer pulls the entire train forward to position each railcar onto the rotary dumper.

 

 

 

Inside the control room. Video monitors are connected to cameras outside the building

 

K-

  • Member since
    December 2003
  • From: St Louis
  • 516 posts
Posted by mls1621 on Tuesday, December 4, 2007 10:13 AM

 corksean12 wrote:
what are these used to dump? coal?

This was a scratch built rotary dumper in N scale.  Walthers didn't make it available in N.  It doesn't work, so I posed it dumping a load of wood chips.  The load is actually saw dust glued to a piece of mylar.  It gives a good representation of the dumping operation.

 

Mike St Louis N Scale UP in the 60's Turbines are so cool

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