Thursday, July 4, 2013

JV31 Midland Railway Company


Western Australian, Midland Railway Company, JV class, 1st class Sleeping Car No. 31

The Midland Railway was a privately owned railway company in WA operating between Midland and Walkaway (near Geraldton) commencing operations in 1894 until being absorbed by the WAGR in 1964.
 
The JV class sleeping cars were the last carriages built for the Midland Railway Co. being built in 1927 by the WAGR workshops at Midland. Only 3 JV carriages were built numbering 31 -33. The WAGR later went on to use the design for their own AZ class cars.
 
The picture here below from the State Library of WA shows JV 31 freshly painted in 1955.
 
 
In a 1927 report in the West Australian Newspaper, General Manager of the Midland Railway Mr J. J. Poynton proclaimed “They are the best sleeping cars on a narrow-gauge railway in Australia and as far as knowledge goes, not excelled anywhere in the world”.

 Each carriage provided sleeping accommodation for 60 persons in two berth compartments. The interior lining of the carriages was of beautifully finished Teak. Light but warm rugs made by the Albany Woolen Mills were provided for the sleeping berths finished with MR initials perforated in the centre. The corridors, considered “Remarkable”, were staggered, running half the length of the car on one side then crossing over to the other side via a vestibule with entry and exit doors, the advantages of the staggered corridors providing a better balance of weight distribution to the cars,  better access for passengers, and control of the wind draft “which is apt to whistle through a long corridor”.  
 
Other innovations included Enclosed Concertinas between cars and Water tanks under the floor with electric pumps to raise the water when required.  Automatic floodlights on the side of the cars came on when the train stopped, to light up stations at night, and then would turn off once a speed of 8 miles an hour was attained. Steps were provided at each end of the cars to allow for us at unattended sidings, a trap door in the floor of the corridor giving access to the steps when lifted and handrails swing into place “ready for use”. There could be no doubt that these cars costing approx. £7500 to build, fully equipped, would enhance the comfort of passengers and the prestige of the Midland Railway!
The Model
 
 
This model of JV 31 has been created from a WestOzModels urethane "AZ"  ½ door kit with some “creative” painting to achieve the MR livery .
 
 

The Decals have been painstakingly and beautifully reproduced by local member Rob Clarke of "Westland Models".
 

I would not normally model the MR, but I have built this carriage to assist local member Stuart Mackay who has been working on a MR layout of Watheroo for our annual exhibition for which rollingstock is a little hard to come by.

I personally prefer the WAGR greens and Creams and have got to say that after many attempts to photograph this model, Brown has to be the worst colour to photograph and get a good result. Thanks go to Bill Gray for his photo above - I believe he agrees with me.

Midland Railway rollingstock did venture onto parts of the WAGR, and so a bit of modelers license will allow my model of JV31 to fit into my future modeling intentions.
 

 

Tuesday, June 25, 2013

WAGR GC and/or MR AC wagon 3D printed

****NEWS FLASH****

NOW AVAILABLE FOR PURCHASE AT SHAPEWAYS

See below

For those that have not seen the 3D printed GC wagon I bought to the last AMRA Meeting, I thought I should post this up, this is my first post on the Blog and its just a quick one to see how it goes.

The photos are a bit blurry at the moment Im not technically skilled as a photographer and I cant find the macro button on my point and shoot.




This was printed in Prime Gray from iMaterialise like Richards R Class, but I have seen there are issues with the latest prints from them, and I wont be offering them for sale just yet until this issues are resolved as I think results may vary otherwise.

I have ordered a couple from Shapeways after a couple of alterations to improve the original, will have to see if they come out as good. And I have confirmed the shape of the chassis from AMRM issue 154 (thanks to Andy May).

More to come as they say.

Update: Painted, undecaled photos


****** Update ******

Those of you whom saw the GC wagon's last Monday would have a good idea of what I have been up to I have made this available for purchase through Shapeways, as of this evening.

I will be putting up both a molded bearing version (slip in wheels) and an untested brass bearing insert compatible version (due to some peoples desire for this option). I will order one of these to check it comes back for a good fit.

Why Shapeways and White Strong and Flexible (WSF aka Polyamide) rather than Prime Gray (PG) (by i.Materialise).

Firstly i.Materialise recently unilaterally changed the minimal detail size they will print in PG according to their Website (due to wishing to use a lower resolution printer (probably due to cost of processing). This is their prerogative but they did so while some customers had ordered believing that items would be printed correctly (the website hadn't been changed at that time), but they did not reprint using the technology they have in the past used and they have not remedied that situation. - Under Australian consumer law they should be liable for refund to customers but it remains to be seen what the remedy they will implement.

Frankly to rant on; as a 3D print bureau this is laughable behavior not only because of the customer service end, but these guys are being surpassed by home based 3D printers at almost a tenth of the cost (see formlabs.com). Good luck to them by the time they figure this out they would have lost a bunch of customers. Technology marches on the best thing about 3D printing is the resolution gets better and cheaper over time.

Secondly is cost vs detail balance.

The WSF material is stronger than Prime Gray (PG) and from three feet away, you can't hardly notice the detail difference between the two. WSF as a material is certainly capable of similar resolution in my opinion to our cast resin kits in many ways. Although due to the fine detail in my drawing of the GC rivet detail is noticeably missing from the print (see below) but if an item was designed for this material I think rivet detail is possible and equivalent to resin (you can see the tie down rings did come out on the print the same size as a rivet on a typical wagon as inspected under a magnifying glass.)

WSF does have the major disadvantage to PG, it requires a bit of work to get to look good. It has a pretty rough surface similar to 320 grit sandpaper, but I have found REPCO "Spray Putty" or similar Automotive primer/filler smooths out the rough texture well, this wagon above needed 1 dust coat of primer and 2 wet coats of the Spray Putty to look like this with out any polishing or rubbing down.
Most detail is still visible despite this process as you can see.

WSF comes in on this wagon at around about equal (maybe slightly higher) in cost to making the resin equivalent by Greg at GA Models, but a lot less work. This price though may not be that scale-able to larger items as the more volume of plastic the model has the higher the cost to produce, though this is partly true with the cost of production on cast resin, the 3D print will increase linearly by volume but the parts for "a single kit" of a wagon may continue to cost similar value with larger wagons compared to smaller etc.

Frosted Detail (FD) at Shapeways

FD is another option for those wanting a GC, this material is quite capable of similar (now even better, due to print technology changes by iM) resolution to PG, but with a slightly rougher surface, it is also difficult to clean the waxy residue that is left on the model due to the printing process, it appears on my printing a common issue occurred and that is the wax support structure got partially integrated with the plastic of the print and created a rougher surface which requires work to clean up unlike PG.

Shapeways recommends a process on their website, but a good scrub with dish soap and then a bath with white spirits does a reasonable job to start with.

NB: The main issue with the FD is that some items were broken off I am sure during post processing and the model will need repair and replacement of broken parts if you get one so be warned (this did not happen with PG by i.Materialise)

Purchasing

So for those interested in 3D printing you can now order a copy in WSF or FD, but I am willing to take orders to make it a bit cheaper (I have six drop-in wheels molded baring WSF on the way) I can offer for sale $25.

You will need to compleate: Kadees (medium underset shank), paint, 12x26mm spoked wheels (Railwest), and 0.5mm brass wire for brake rodding.

I am getting a PG GC from iMaterialise (soon I hope) to see if my model will print in their new process but it seems to be taking a very long time. If that is successful I will put that up as an option as well.



Sunday, June 2, 2013

S Scale at the AMRA Exhibition - Claremont

Some photo's from the AMRA Model Railway Exhibition held at Claremont Showgrounds over the June long weekend, enjoy.

KARRAGULLEN

G46 Shunting at Karragullen


G46 Ready to depart Karragullen


Karragullen Station and Yard

WATHEROO 

Home Signal and Watheroo Yard
 
A24 Waiting to Depart Watheroo
 

Watheroo Station
 
 
Watheroo Loco Shed and Locomotive Servicing Facilities
 

F Class and its train departing Watheroo bound for Walkaway.

Wednesday, May 29, 2013

WAGR etched brass numberplates.





I haven't visited this site for quite a long time and it now seems very active so I feel a bit guilty about not having made a contribution recently.  

The photo shows some custom numberplates done recently for me by Narrow Planet.  They are to S scale size and have the correct WAGR typeface.  Cost was 9.00 GBP for the two sets.  D6 will now finally get its plates after about 20 years so it can go on Graham's list of completed locos!  Steve Fulljames, who runs Narrow Planet, is very helpful, prompt and a pleasure to deal with.

Monday, April 22, 2013

CXB Sheep Wagon

Here is my latest 3D printing project just arrived from i.Materialise, after detailing and painting:


The photos below show the CXB ready for painting.  I have added a few details from brass wire including the wire rods along the sides, the hand rails at the ends, and the angled pull rod which is part of the brake rigging.  All of the parts which are grey are part of the 3D print.






For more information, see http://marbelupmodels.blogspot.com.au/2013/04/cxb-4-wheel-sheep-wagon.html

Wednesday, March 6, 2013

How to Make a Styrene Roof for Carriages



One of the best ways to put a roof on any model carriage is to make a styrene roof curved to shape, to suit the carriage being built. This ensures that there is very little or no stresses from the roof material to “spring” the Urethane cast sides.

This is easily done by taking a sheet of .20”/ .5mm styrene sheet and cut to length and width to suit the carriage being roofed. It is good practice to add/allow an extra 5mm of material all round to ensure coverage is achieved – the excess material can be trimmed off in the final fitting.
Find a suitable length of steel tubing – if possible to the correct diameter required to suit the carriage kit end walls. I use a piece of steel tube I saved from a piece of exercise equipment (foot section), which had been discarded by a neighbor during a local shire, kerbside rubbish collection, but any metal tube can be used including vacuum cleaner pipe, pedestal fan etc.
Take the cut section of styrene sheet and tape the ends to the steel pipe using electrical tape ensuring that the styrene is square along the pipe. Then simply wind the tape tightly along the length of the pipe ensuring the styrene sheet is pulled tight onto the pipe
Take the pipe section and stand it in the kitchen sink ( I usually have the plastic side down) and prepare 2 full kettles of boiling water - I keep an old kettle spare for this purpose so that you have the water ready to go. With the water at boiling, carefully pour the boiled water down the inside of the tube – slowly I find is best, allowing more time for good heat transfer to the steel pipe.




 
 
Allow the pipe to cool and then remove the electrical tape to reveal a nicely shaped section of curved roof material.

Take the roof section and test fit it to carriage – carefully trim the long edge to achieve a neat fit to the carriage body – this might mean making several small cuts/trims till correct size is achieved - allow excess overhang on the ends to enable addition of bargeboards and carriage end trimmings.
Glue roof into place by firstly gluing (squarely) on the end walls then using a scalpel blade laden with glue on its top surface, gently lift the sides with the pointy end and push a little glue onto roof underside and then allow the roof to return to its position – hold in place until set and then tack a few more places. Once the roof is tacked into place, run a bead of glue down the inside of the body to seal along the length. Fit end detail and trim to length.