Jump to content
 
  • entries
    103
  • comments
    361
  • views
    105,315

OOn3 Ruston 48DS - chassis part 3.


halfwit

1,262 views

Well I've got the EM chassis running. Here's a photo of the motor and gearbox combo;

 

blogentry-6749-126877382978_thumb.jpg

 

The motor is a Mashima 1015 and the gearbox a High Level Slimliner Compact+ 54:1 reduction. The same set-up will be fitted to the narrow gauge version when I send of the 1/8 bore gear and bearings and swap them for 2mm bore (I ordered the wrong spec...). Here's a pic of it fitted into the frame;

 

blogentry-6749-126877416431_thumb.jpg

 

The motor is mounted on a piece of bicycle inner tube. For pick-ups I've used phospher bronze wire, .315mm dia. However this has caused some trouble. I've set up the pick-ups to run on the edge of the flange, a tip taken from Guy Williams scratchbuilding book, which works well on the driven axle but unless caused too much friction on the non-driven front axle, preventing it from turning. A bit of jiggling put things right but perhaps brass wire might have been better. Anyway another piccy;

 

blogentry-6749-126877409217_thumb.jpg

 

Once I've got the EM chassis sorted then I'll set about the narrow gauge version.

 

I've also started on the bodies. The EM loco will be built pretty much as the kit intended. The frames and cab are in one piece now, the bonnet will be added once I've cleaned up the soldereing around the cab sides. The cab for the n.g. version is also done. A photo;

 

blogentry-6749-126877487764_thumb.jpg

 

I spent some time at the weekend photographing and measuring 48DS', a standard gauge one at the Chasewater Railway and the n.g. one at Irchester Railway Museum (thanks to both concerns) and will download some detail photos into my gallery in the near future. Now I've got some measurements of the n.g. frames, which are longer and narrower than on the standard gauge locos, I can start on them.

 

Paul.

4 Comments


Recommended Comments

That looks a neat piece of work. I'll be interested to see how you get on with the narrow gauge version. Looking at the photo of the underside, I wonder if the problem with the pickups on the undriven axle is not the phosphor bronze (which should be more springy than brass), but that the distance from the anchor point on the copper-clad to the wheel rim is too short to allow light but effective springing? Longer pickup wires should be able to do their job whilst applying less force to the wheel rim.

 

Nick

Link to comment

Thanks Nick. I was thinking the same thing about the length of the wires. I suppose I'll have to re-do them, just to see if we're right.

Doesn't bode well for the n.g. version...

Link to comment

Really nice work there! I'm not sure if i've missed this information else where in your posts but what is the source of the body? I know you've made reference to the 48DS already finished as A1 models origin, are these the same?

 

Paul

Link to comment

Thanks Paul.

The bodies are A1 Models, I'm using the fully enclosed cab option (2 different cab sides are supplied). On the n.g. version only the A1 cab and bonnet will be used, the footplate, frames and bufferbeams will be scratchbuilt from brass.

 

Paul.

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...