Freerails Home 
Home Search search Menu menu Not logged in - Login | Register
Freerails > Model Railroad Forums > HOn3 > (MDC HOn3) Four-Truck Shay

Because of non-railroad abuse of the site, new members MUST use their first names (at least) to join NO EXCEPTIONS!

(MDC HOn3) Four-Truck Shay
 Moderated by: Dave D Page:    1  2  Next Page Last Page  
New Topic Reply Printer Friendly
 Rating:  Rating
AuthorPost
 Posted: Sun Jun 21st, 2009 07:58 am
  PMQuoteReply
1st Post
Bill Fornshell
Registered


Joined: Mon Jul 30th, 2007
Location: San Antonio, Texas USA
Posts: 674
Status: 
Offline
Four Truck Shay - Part 1- The Big Tender

I have thought about making an HOn3, Four-Truck Shay for awhile. I should really say that I have thought about turning one of my MDC 3-Truck Shays into the 4 Truck version.

I have been looking for and found a few good pictures but had not been able to find a good drawing with dimensions on it. Early this week I did find a drawing but no dimensions. I took a few measurements off the drawing and discovered the drawing was in scale with HO or 1/87. I also found two good threads at other RR Forums where someone had built a 4-Truck Shay. One was in HO and made using the Bachmann 3-Truck Shay and the other was in one of the large scales. Both came out really nice.

Reading over the different threads and making a few quick calculations I came up with the length of the big tender.

I started looking through some of my MDC Shay kits and decided I could start with two trucks from the Three Truck Shays.

I did a little cut and paste and I was off to a good start.

I will splice some plastic in the space between the two tender shells and see how that turns out.

I ordered some of those resin rivets this morning so I will see how they work. If they work I will add rivets to the Big Tender, if they don't work the Big Tender may not have any rivets.

A few pictures I found of the Big Tender on the internet. These are models for sale at BrassTrains.com. If you put "Shay" in "Search Here" you can see the other 4-Truck Shay.

http://www.brasstrains.com/product_detail.php?p=009789

1.


2.


3.


4.


5.


6.


7.


8.


9.


10.


11.


==

The plot thickens.

The main reason I wanted a Four-Truck Shay was to have a place to hid the battery so I could convert the Shay to Radio Control. The Big Tender needed just a bit more room so I told my shop crew to give me a way to carry some more water. They modified the big tender and added a bit more capacity. The idea is working but needs to go a little higher. I can get the battery in OK but also need to get the RC receiver in there with it. I will bring the top up another 3/8 of an inch or so. I will also raise the top on engine tender the same.

Now that is worked out OK I can continue on with the rest of the Big Tender.

12.


13.


14. Peak-a Boo. Space to hid my Eflight 11.1 volt battery.


15. I sat the Big Tender with the rest of Shay to see how things were looking.


My plan is to have power to all four trucks.

Last edited on Sat Dec 19th, 2009 07:03 pm by Bill Fornshell

Back To Top

 Posted: Sun Jun 21st, 2009 05:31 pm
  PMQuoteReply
2nd Post
ytter_man
Registered


Joined: Fri Feb 1st, 2008
Location: Montana USA
Posts: 927
Status: 
Offline
Wow, that's a rare beast you're building there! :bow::bow:

Good luck with this one.

Back To Top

 Posted: Tue Jun 23rd, 2009 06:03 am
  PMQuoteReply
3rd Post
Bill Fornshell
Registered


Joined: Mon Jul 30th, 2007
Location: San Antonio, Texas USA
Posts: 674
Status: 
Offline
Hi ytter_man,

I hope it lives up to your expectations.

=====

Now that I have a place to hid the battery and maybe the Radio Control Receiver I need a place for the Sound Module and Speaker.

I have this small "Proxxon" Micro Milling Machine MF 70. I bought it about 4 years ago when I was modifying Camping Stoves to make them lighter. It works really nice but is what I would call light duty.

I am commented to making Radio Control work on the type of Locomotives I like. Several different types of HOn3 locomotives and a few HO scale. I like the old MDC Shays, MDC 2-8-0's and the McKeen Motor Cars. The problem is finding space for the RC stuff and a decent size battery. Now that I can add sound I need room also for the sound module and speaker. If I wanted to use a "follow-along" car to hid somethings in that makes it easier. I don't want to do that as the norm so that leaves me looking for space on the locomotive and tender or within what ever type of locomotive I am using.

I have though about milling out the forward part of the a boiler and moving the motor from the back of the engine to the front for awhile. I have several nice NWSL Can Motors that are small enough to go into the space I am milling out of the boiler but big enough to power the Shays. The pictures show my first test milling of a Shay Boiler. I am not finished yet but I am about half way there.

I had a set of 5 Collet Chucks but only three small size Collets. My biggest one was used a lot before and it proved rather dull. I used it some but then used each of the two smaller ones till I broke them. Then I put the bigger one back in until I broke it. Tuesday I will try and find more of the largest size my Collets will hold and buy several extra. I did get about half finished.

I first made a gig to hold the Boiler. The holes you see are to hold the steam and sand domes and the thing that the smoke stack sits down on. I spent a little extra time on the gig as I expect to mill several Boilers. It is glued and bolted together.

Edit 1.


Edit 2.


Edit 3.


Edit 4.


Edit 5.


5.


6.


7.

Last edited on Sat Dec 19th, 2009 07:03 pm by Bill Fornshell

Back To Top

 Posted: Tue Jun 23rd, 2009 06:13 am
  PMQuoteReply
4th Post
Paladin
Administrator


Joined: Tue Jan 24th, 2006
Location: Berwick, Australia
Posts: 2413
Status: 
Offline
Your on a roll now.

I admire your tenacity. Like a dog with a bone. you never give up

This is going to be a true one off.

Don



____________________
Don McL
Back To Top

 Posted: Tue Jun 23rd, 2009 07:07 am
  PMQuoteReply
5th Post
ytter_man
Registered


Joined: Fri Feb 1st, 2008
Location: Montana USA
Posts: 927
Status: 
Offline
Wow, very cool. I've got a small moveable vise that could be used for something like this but you've got the right tool for the job, i like :thumb:

Cant wait to see more :bow:

Back To Top

 Posted: Tue Jun 23rd, 2009 06:23 pm
  PMQuoteReply
6th Post
Herb Kephart
Administrator


Joined: Thu Jul 19th, 2007
Location: Glen Mills, Pennsylvania USA
Posts: 4746
Status: 
Offline
Bill

For what it's worth, you are using you table clamps on your little mill the wrong way, The serrated angle face of the block should face the work, and be a support for the serrated end of the clamp which is meant to be the end away from the work. The serrations give an adjustable height support for the outboard end of the clamp, which should be slightly higher than the end placed atop the work to hold it down. You probably got away with what you have because you are only able to take very light cuts.

Herb:old dude:



____________________
Our earth is degenerate these days.  There are signs that the world is coming to an end.  Bribery and corruption are common,   Children no longer obey their parents. 
                    Assyrian tablet circa 2800 BCE
Back To Top

 Posted: Wed Jun 24th, 2009 03:07 am
  PMQuoteReply
7th Post
Bill Fornshell
Registered


Joined: Mon Jul 30th, 2007
Location: San Antonio, Texas USA
Posts: 674
Status: 
Offline
Hi Herb,

Thanks for the information.

I knew that sucker was not on the best way. I couldn't find my picture of how it should go last night and I could not open the Proxxon Web Site and look at the picture of it. This morning I called them and found out their web site doesn't like Safari. I went to a dealer web site and found the picture I needed.

I was making light cuts but the gig is also made in a a way that makes the boiler hard to pop out of it.

I was also able to get some new "end mill cutters" as they seem to be called.

1. New Cutters.


2. I have finished with Boiler modification till I test fit the new can motor.


3.


Since I know someone will ask, the modified boiler weighs 56 grams and a stock boiler weighs 87.5 grams.

Last edited on Sat Dec 19th, 2009 07:05 pm by Bill Fornshell

Back To Top

 Posted: Wed Jun 24th, 2009 10:55 pm
  PMQuoteReply
8th Post
Bill Fornshell
Registered


Joined: Mon Jul 30th, 2007
Location: San Antonio, Texas USA
Posts: 674
Status: 
Offline
I think I am building the "infrastructure" for my Four-Truck Shay. Finding space for the different parts necessary for the Radio Control system, the Sound Module, the batterie(s) etc is a challenge.

I milled out some more of the Boiler after I got the motor dimensions. I don't have the new motor yet but expect it in a day or so. This new motor goes in the front vs the rear as in the stock arrangement. This seems to give me enough space in the cab and the small tender for the Sound Module and Speaker. The Big Tender has been modified to hold a battery and the Radio Control Receiver.

The following pictures show what I think will be the layout of where everything goes.

1. The Major Parts.


2. Where the parts are going showing the large Eflight 11.1 volt battery.


3. Showing a pair of smaller batteries. They would take up less height in the Big Tender but I need to test them working as a pair and see if they have enough power to make everything work and for how long.

Last edited on Sat Dec 19th, 2009 07:06 pm by Bill Fornshell

Back To Top

 Posted: Thu Jul 30th, 2009 04:07 am
  PMQuoteReply
9th Post
Bill Fornshell
Registered


Joined: Mon Jul 30th, 2007
Location: San Antonio, Texas USA
Posts: 674
Status: 
Offline
I was working on the 4-Truck Shay this afternoon. 

This Shay is going to be a test bed for all the mechanical changes I have thought about for the MDC Shay.  If you have any ideas about making the MDC Shay better and want to share them, sent them.

The motor was installed along with the trucks on the chassis.  It ran fine so far.  I was getting ready to file the bull gear case bottom a bit and thought about trying something else first.   The bull gear case is the black thing you see in picture number 4.  I wanted to mill a little of the chassis where the gear case screws into it.  This would give me a bit of clearance  between the bottom of the gear case and the track.  The gear case has a habit of getting caught going through turnouts and over things that are a bit high in between the rails.  I also milled out a little in the area where the drive shafts connect.  I had to stripped the chassis so I could clamp it down to work on it.

This Shay is using NWSL gears and all their other parts for the MDC Shay.  I have a set of the Bull Gear replacements but have another idea which might be better than those gears.  More about that will follow as I get a few parts that should be in the mail and have a chance to see if my idea will work.

1.


2.


3.  This picture shows the difference between the modified frame and a stock frame.


4.  This picture shows the Gear Case attached to the modified frame.  The distance between the modified gear case is 2 mm less than the stock gear case distance.


Last edited on Sat Dec 19th, 2009 07:06 pm by Bill Fornshell

Back To Top

 Posted: Mon Oct 5th, 2009 11:11 pm
  PMQuoteReply
10th Post
Dave D
Administrator


Joined: Mon Jan 23rd, 2006
Location: Green Bay, Wisconsin USA
Posts: 3280
Status: 
Offline
Any progress with this Bill?



____________________
Dave
Back To Top


 Current time is 11:12 am
Page:    1  2  Next Page Last Page  

Freerails > Model Railroad Forums > HOn3 > (MDC HOn3) Four-Truck Shay
Top



UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems