Jump to content
 

Recommended Posts

As you will see from the title the next build is underway whilst the Dukedog gets its final touches applied. I will post pictures when all the glue and paint and varnish has dried.

 

So, to the Radial. This will be similar to the previous build of this prototype and again it is a Roxy Mouldings mixed metal kit. The chassis is N/S and the body white metal castings. It will be finished as per the Bluebell version in Adams light green livery.

 

It will also have a split, insulated chassis, so no nasty plungers to deal with and will be DCC controlled.

 

AS with all my kits, the first job to do is the coupling rods. Having cut them from the fret I just trim off the tabs line up the layers, in this case two, and clamp them in the vice. Use plenty of flux, I use Copalux, a plumbers paste flux that will not turn green, unless you leave it on the model for a few days, and is easily washed off in water, and apply solder to the outside edges of the rods. Don't be mean with the solder here as you want to flood the joint and leave plenty of solder to file up and give you a nice smooth finish.

 

Rods as removed from the etch.

post-7733-0-29706900-1394189267.jpg

 

Using a couple of spring clips to hold them in register.

post-7733-0-63626100-1394189268.jpg

 

Apply plenty of Flux

post-7733-0-83029700-1394189269.jpg

 

I put them in the vice to solder them together.

post-7733-0-82836600-1394189270.jpg

 

They look a bit of a mess at this point but will be fine after cleaning up

post-7733-0-05463800-1394189272.jpg

 

It is a good idea here not to use your best files as they are going to get clogged with solder.

post-7733-0-07276000-1394189273.jpg

 

The finished rods after filing to shape and a rub down with a fine wet and dry to polish them.

post-7733-0-61245300-1394189274.jpg

 

More to follow.

Sandy

Edited by Sandy Harper
  • Like 9
Link to post
Share on other sites

I also use one of those fine nail buffers that the ladies use. The ones with various grades and a smooth panel. The coupling rods can be quite polished with them.

There will be some nice lining to do with this one then.

Link to post
Share on other sites

What a super day. Is this Summer starting? Just got back from a thrash around Mid Wales on my new (to me anyway) Motorbike. Fantastic. All pumped up now so waste of time sitting at the work bench so this is the rest of what I did this morning.

 

 

Having got the rods looking tidy it's time to open up the crank pin holes with a broach so that they will just fit over the dummy axles of the chassis jig. If you don't have a jig a good dodge is to use Slaters axles. Make up the rods and carefully open out the crank pin holes so that the Slaters axle end screw just fits through the hole (neat fit). Now with the top hat bearings in your chassis sides, and the axle inserted in the bearings, screw the end screw, with the rod trapped in it, into the axle ends thereby jigging the rods and axle bearings together. Fit your spacers and solder up on a flat surface.

post-7733-0-49657400-1394212952.jpg

 

If you have a jig, then here is the jig being adjusted to fit the rods. Only two axles on this one.

 

post-7733-0-35067400-1394212960_thumb.jpg

 

The bearing holes in the N/S chassis sides need a big bu**er broach

 

post-7733-0-15869900-1394212962.jpg

 

I have left the bearing holes circular at the moment for the jigging process but the front ones will be extended downwards and a spring added later.

 

post-7733-0-91455700-1394212963.jpg

 

 

The last time I built this kit I had to dismantle the chassis as the spacers were too wide. I was not gong to get caught out again. Here is how I calculated the width I needed.

 

 

post-7733-0-85968800-1394212964.jpg

 

Having filed the spacers down to the correct width (I needed to take about 1mm off) here are the spacers fitted ready for soldering in place.

 

post-7733-0-05572100-1394212968_thumb.jpg

 

More to follow

 

Sandy

  • Like 8
Link to post
Share on other sites

This photograph illustrates the issue with the spacer width and how much I needed to remove to get the width of the frames correct at 24mm between inside faces.

 

post-7733-0-62475400-1394306773_thumb.jpg

 

This is a length of 24mm wide Perspex that I obtained from my local sign maker. I have marked it up ready to cut into the individual spacers. The bottom blank is for the spacer at the rear which is a different size due to the narrowing of the frames.

 

post-7733-0-88291200-1394306781_thumb.jpg

 

The spacers fitted and glued in position.

 

post-7733-0-53785100-1394306789_thumb.jpg

 

More to follow.

 

Sandy

  • Like 8
Link to post
Share on other sites

What a super day. Is this Summer starting? Just got back from a thrash around Mid Wales on my new (to me anyway) Motorbike.

            Nice one Sandy,What you ride, Me ride gsx1400 :sungum:

Link to post
Share on other sites

What a super day. Is this Summer starting? Just got back from a thrash around Mid Wales on my new (to me anyway) Motorbike.

            Nice one Sandy,What you ride, Me ride gsx1400 :sungum:

Nice! A FJR 1300A, and off again today for the coast in this beautiful sunshine!

 

Sandy

  • Like 1
Link to post
Share on other sites

Here are the Perspex spacers glued in place under the original N/S spacers

post-7733-0-31036200-1394735597_thumb.jpg

 

This photo shows the metal spacers slit using a disc in the Dremel

post-7733-0-93739700-1394735604_thumb.jpg

 

Trial fit of the white metal footplate which comes in two parts and needs to be soldered together. Not straight forward, as the castings don't line up well.

post-7733-0-16761500-1394735612_thumb.jpg

 

A shot of Jazz's method of springing for axles.

 

post-7733-0-79177400-1394735619_thumb.jpg

 

More to follow

 

Sandy

  • Like 10
Link to post
Share on other sites

I felt that the bogie, without any white metal spring castings as part of the build to give it weight, was a bit on the light side so I added some lead to it. I also added two, bar streachers, at each end as it looked very bare otherwise.

 

post-7733-0-56099100-1394819461_thumb.jpg

 

The motion, in particular, receives no mention in the instructions, other than 'fit' !!! So you are left to your own devices to work out the intended method of assembly. This is my version which I think doesn't look too bad.

 

post-7733-0-87748300-1394819453_thumb.jpg

 

The cylinder and single slidebar fitted to the frames and motion bracket. Fortunately, the crosshead components are bolted together as it needs to be assembled on to the slidebar.

 

post-7733-0-19078100-1394819497_thumb.jpg

 

More to follow

 

Sandy

  • Like 11
Link to post
Share on other sites

Here are the 3 axles 'split' for pickup of electrical current through the frames The top axle (rear driver) in the picture is for the motor. It is split twice so that the brass final drive gearwheel will be totally isolated. The frames of the gearbox will have insulated bearings and will span the 'cuts'.

 

The two other axles are for the front driver and the rear trailing wheel.

 

The bogie is untouched and plays no part in the electrical pickup system although it is isolated from the main chassis frames.

 

post-7733-0-76202600-1395414777.jpg

 

This is a dry run of fitting the first of the white metal castings which are remarkably well cast only requiring the removal of the burnt talc mould releasing agent and the minimum of joint flash.

 

post-7733-0-88285300-1395414778.jpg

 

Progress so far.

 

post-7733-0-02200600-1395414780.jpg

 

More to follow

Sandy

  • Like 8
Link to post
Share on other sites

Hi Peter

 

Glue! Yuck!!

 

All soldered using Carrs 100 degree solder, Copalux paste flux and my Temp. Controlled iron set at 210 Degrees. The white metal does even out the balancing effect quite well, as it did on the previous build I did of the same kit.

 

Considering it is basically a white metal kit, it is well cast and the bits all fit with very little work.

 

Sandy

 

post-7733-0-76480200-1395428751_thumb.jpg

  • Like 10
Link to post
Share on other sites

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
 Share

×
×
  • Create New...