Sunday, August 28, 2016

Cassilis Branch Terminus Update

I have been slowly moving along with adding more scenery to my Cassilis station in between those other life matters.

Here are a few photographs to show what I have been doing. The backscene has been removed to assist with access, so the views down the yard showing other parts of the layout will not be part of the final scene. The backscene is normally at the rear of the loading bank and the view from the operating position/aisle is of the rear of the station building and the rail side of the loading bank.

The edge of the ballast has been removed to allow the placement of the loading bank.
A view down the yard with the Wollar Goods Shed placed for effect.
View of detailed Rail Central platform - Check for carriage clearance
Loading bank in place with expanded polystyrene shaped filling
View from behind station platform across to the loading bank.
View down the Cassilis yard to the terminus end
Since the ballast was held in place with Long Life Floor Polish (see the last post for an explanation) it was relatively easy to remove the ballast along the edge of the goods siding to give the appropriate clearance from the rail for the loading bank. The Long Life acrylic clear doesn't set the ballast as hard as diluted PVA does which allows it to be removed easily.

I topped the expanded polystyrene backfill of the loading bank with plaster; while it was wet I drifted on a thin layer of brown tile grout and then over sprayed it lightly with methylated spirits to break the surface tension for the following spray of water. As usual with thick plaster it has cracked in a couple of places due to shrinkage and this will have to be corrected. I intend to run a bit of PVA into the cracks then apply some more tile grout and follow up with a spray of methylated spirits and then water to set the grout. Note that the tile grout would likely have Portland cement in it so if applied in depth it could be hard to remove later if required.

The soil bank at the back of the platform was also done with the tile grout over expanded polystyrene and the platform top was done with some Chucks Ballast fine rhyolite material. The plastic top of the Rail Central platform was coated with full strength PVA to assist with bonding of the fine rhyolite.

Well, that is about it for now, I hope to keep on keeping on with Cassilis.






Saturday, August 20, 2016

Part Missing from Fine Detail Left and Right Bracket Signals

I have just found that there was a Signal Lamp Blind part missing from the detail parts on my Left and Right Hand Fine Detail Bracket Signals released recently. The bracket signal requires two and there is only one.

The designs for both bracket signals have now been corrected.

Unfortunately, a 'guest' ordered one of each from my Shapeways Signals Branch Shop on 7 August.

As it was a 'guest' I have no way of knowing who ordered the signals and therefore who to contact about the missing part on each bracket signal.

Could the person who ordered these signals please contact me by email at rpilgrim@bigpond.net.au and state the Order Number and I will work out how to get the extra parts to them.

If you place an order on my Signals Branch Shop please register (as a designer I believe) so that I have a way of contacting you if necessary.

Tuesday, August 16, 2016

Free Shipping this Week from Shapeways

It's on again.
Shapeways this week only are shipping all orders over US$25 free.
Anything on the website, anywhere in the world ships free! Offer expires Sunday August 21 at 11:59 PM PDT.
Feel free to visit my Signals Branch Shapeways Shop ;-)

Tuesday, August 9, 2016

Back to Work on the Layout

I previously promised a post about the layout after a number about 3D printing so here we go.

Way back in March of 2012 I did a post on where my Cassilis branch terminus was up to construction wise. Here is the relevant post.

Well, I have started on Cassilis again, working on the track. The yard has been operating since 2012 but there were a couple of spots that occasionally would give trouble. The yard has scratch built points and I had aligned the rails, leaving a gap where it was required electrically for DCC. I used Micro-Engineering Code 70 flextrack and of course I had used track gauges when making the points. Now, I found out that the ME rail had a wider gauge than my pointwork, not by much but with nothing physically aligning the rails this was an issue.

I bought some ME insulated rail joiners and also some Peco code 70/75 insulated rail joiners to correct the issue. I had to use short lengths of the insulated fishplates so that I could lift the end on a point enough to get the fishplate on to the rail then drop the rail back down and slide the fishplate  across the gap onto the other rail. I tried the ME fishplates first and could not get them onto the first rail as the slots for the rail were very fine, too hard, so I abandoned them. The Peco fishplates have a central small vertical tab meant to keep the rails apart but as I needed a short fishplate I cut through on each side of the tab to make two small fishplates. Although a little bit fiddly these worked much better. I proceeded to do as many of the gaps in the yard as I could. Several were aligned quite well, usually between my points, so they didn't need the insulators. There were also a couple of joins that I couldn't safely raise the rails on so they stayed the same.

I followed the fishplate installation by checking the vertical alignment on the rail gaps without the insulated fishplates. Several rail joints needed a bit of shimming with some 0.010" plasticard.

After this came a spray with some light grey acrylic paint over the sleepers and rails to visually tie the flextrack with the points and their PCB and timber sleepers. If you every spray your track with acrylic paint be sure to immediately clean the track with a track rubber as the paint will go off quickly and be hard to remove if left. No, I didn't get caught with this one.

The small section of the yard at the turntable end had some scenery and the track had been ballasted with Woodland Scenics Fine Ballast Gray Blend (B1393) to imitate loco ash ballast as often used on branch lines. So knowing that I had some I went searching through my scenery materials but, of course I had used it on the branch line running from the junction near Wollar and I had very little left, a trip to the hobby shop was needed.

Ballast obtained, I spent this afternoon applying and shaping the ballast using the method I posted about in March 2012. I use an edge painter 'brush' that I found at Bunnings as shown in the following photos, dragging it lightly along the track, sweeping the ballast off the sleepers, not hard to use.

Here it is firstly showing the underside bristles.

Ballasting at Wollar - March 2012

Now in an action stance, less the copper bar weight I used to keep it upright for the photo (I take time shots and can't keep my hand still enough).


When I did the Wollar ballasting (above) I used some liquid hairspray that my hairdresser daughter had spare and it worked well but did it smell!. This time I crossed my fingers that I wouldn't get any swelling of the baseboard where three tracks cross and used water based 'glue'. The two 1800mm Cassilis baseboards are joined in the middle of the yard so I taped over the join and also a number of screws that hold the boards in alignment. I wanted to be able to find these screws if I needed to separate the two boards in the future and having the screw heads full of plaster was not a good idea, so I took this photo.


The water based 'glue' I used was Long Life Self Shining Floor Polish which is really just a thin acrylic clear sealer, basically like a thin glue. I have used this for a number of years for glueing soil, ground covers and static grass. It can be found in Woolworths in 500ml yellow plastic bottles. or you can get 5 litres at Bunnings.

So here is where I am up to.


OK, now I have to confess. I started back on Cassilis as I wanted to try out my 3D printed fishplates!

Here are a couple of views of the 4 bolt versions in place.



Now 4 bolt fishplates are usually found on sidings but can be found occasionally on the branch main so I thought I would do that. The points have different plates that appear to be the 6 bolt variety so after a bit more research I will work my way down the yard.

Apparently NSWGR had two sizes of rail, 60ft for main line and 45ft for sidings. So that means that the 6 bolt fishplates should be spaced every 60ft of main line and the 4 bolt fishplates for sidings every 45ft. Each rail joint is offset nominally by half the rail length but I am sure that wandered around a bit based on the track layout and where the rails met a set of points which would have two fishplates opposite each other. The 60ft lengths of rail would have been interesting to shift on two flat cars, probably sitting on a 'turntable' affair at the centre of each flat car. Too hard to do on a model I suspect.
If the 3D printed fishplates are placed opposite each other I have checked and they don't foul the flanges on either Code 110 or Code 88 wheels.
OK, I just checked some photos I took recently in Oberon yard and the 'main line' seems to have 45ft rail and 4 bolt fishplates joining the points and the points themselves have 6 bolt which is to be expected. So perhaps, pioneer branch lines may only have 4 bolt fishplates and 45ft rail other than on the points. And I have a branch line approximately 36ft long and that isn't counting the yard!
Who made these fishplates and caused this problem anyway ....

Tuesday, July 19, 2016

A Few Detail Parts for the Rails

I know that I promised something about what I have been up to on the layout but.....

I have recently made some 4 bolt and 6 bolt fishplates and sleeper plates available on my Signals Branch Shapeways Shop in the HO Infrastructure range and the 7mm Scale range. All of the items are printed in the Frosted Ultra Detail acrylic material.


These items were designed as a result of a request from a modeller so if you have an idea contact me and I will see what can be done.


My email address is rpilgrim@bigpond.net.au



The fishplates were designed for Code 70 and 75 rail but would also work with Code 100 rail.

The fishplates can be glued to the sides of the existing rail to add that missing detail, not for the modern image welded rail modellers though.


Of course the sleeper plates with the holes can also be used as scenic detail laying around the railway yard and alongside the line.

I have also done the fishplates just with holes for lineside details as well.

Here are some 3D renders, photos of the prototypes and a couple of HO 3D model prints.

HO Scale

Close up of 3D render of HO 4 Bolt Fishplates

4 Bolt Fishplate - Carcoar NSW


Actual 3D HO 4 Bolt Fishplate print on Peco Code 75 rail, also fits
Shinohara Code 70 and Micro Engineering Code 70 rail
Close up of 3D render of HO 6 Bolt Fishplates
Observation suggests that only 4 bolts were used.
6 Bolt Fishplate - Carcoar NSW
The 3D printed model fishplates in the photo are opposite each other instead of offset by half the rail length.
This was a test to ensure that NMRA RP25/110 and RP25/88 wheel flanges would not hit the fishplates (which they don't).
Close up of 3D render of HO sleeper plates.
The 4 holes through the plates are to fit Micro Engineering Micro Spikes (Product No. 30-108)
Sleeper Plate - Blayney NSW

Note that the holes in the actual plate are slightly off centre but the holes on the models are centred.
This is because of minimum wall thickness issues of the 3D printing design requirements.
HO 3D printed Sleeper Plates on HO timber sleeper - Code 70 Rail
Micro Engineering Micro Spikes (Product No. 30-108)

Close up of 3D render of HO sleeper plates with printed dog spikes.
Plates are designed to be slid onto Code 70 or 75 rail and glued to HO timber sleepers once gauged.

7mm Scale

Close up 3D render of 7mm Scale 4 Bolt Fishplates
4 Bolt Fishplate - Carcoar NSW
Close up 3D render of 7mm Scale 6 Bolt Fishplates.
Observation suggests that only 4 bolts were used.
6 Bolt Fishplate - Carcoar NSW
Close up of 3D render of 7mm Scale sleeper plates for Code 100 rail.
Two layers of plates are shown.
Close up of 3D render of 7mm Scale sleeper plates for Code 125 rail.
Two layers of plates are shown.
Sleeper Plate - Carcoar NSW

I hope someone finds these of some value.

Tuesday, July 5, 2016

Some more Fine Detail and 7mm Scale Signals - Offset Brackets

Just a short post to announce that I have recently made some left and right hand offset bracket signals available on my Signals Branch Shapeways Shop in the HO Fine Detail range and the 7mm Scale WSF range.

Here are some 3D renders of the signals showing the detail level. Note that these are views of the 7mm Scale signals as they show the operating mechanism below the signal base, however the HO Fine Detail Signals have the same level of detail (basically the same 3D file) but without the mechanism which needs to be ordered separately as it is in WSF to reduce the cost.

I would like to point out that these signals have two signal arms, a 39 inch and a 30 inch to allow the modeller to choose which one to use.
Overall view of the Right Hand Offset Bracket Signal
Right Hand Offset Bracket Signal platform detail

Right Hand Bracket Signal platform underside detail
Overall view of the Left Hand Bracket Signal
Note the pulleys at the base of the signal post and the small supporting brackets under the platform
Note that the large cast iron bracket is not printed in place to allow the inner surfaces
of the timber beams and underside of the platform to be painted
I have also added a left hand offset bracket to the White Strong and Flexible (WSF) original HO signal range but of course the range doesn't have the higher level of detail.

Well, that's it for now but I will get back to some posts about the layout soon.


Wednesday, June 22, 2016

A Couple of Bracket Signals and Some Ladders

I have just expanded the HO Fine Detail Frosted Ultra Detail (FUD) and 7mm Scale White String and Flexible (WSF) range of signals with a left and a right hand NSWGR Lower Quadrant tapered timber post Bracket Signal.

The HO version can be found in the Fine Detail Signals section of my Signals Branch Shapeways shop and the 7mm Scale versions can be found of course in the 7mm Scale section of the shop.

The following renders of the 3D file for the left hand bracket shows the detail I have managed to achieve. I am particularly proud of the results.

HO Fine Detail Bracket Signal
Note the see through boards and holes for wire handrails

Note the support brackets under the platform and the lamp detail

Note the wheels at the post base and the platform cast iron bracket
that is separate to allow painting inside the two timber bracket beams


7mm  Scale Bracket Signal



The same 3D design is used for both the HO and 7mm Scale signals, adjusted slightly and re-scaled.

The bracket signals come with one 39" and one 30" signal arm for a main line and a loop. As I have included the most likely signal arm sizes I will be making a range of signal arms available if different sizes/types are required.

The supporting struts attached to the HO signal post and bracket are to be removed of course, they are there to protect and support the bracket during the printing process.

To complete the HO Fine Detail signal a suitable mechanism is required and the 2 arm mechanism should be purchased. The mechanism is in WSF as it is much cheaper than the FUD material that the signal is made of. The mechanism is glued to the underside of the base of the signal.

As can be seen above the 7mm Scale signal has the appropriate mechanism as part of the print as the signal is done in WSF.

Ladders will be required and printed ladders for each scale are available.

HO 2 Ladders Sprue - FUD

HO - 10 Ladders with Cast Iron Ladder Bases - FUD

7mm Scale 2 ladder Sprue - FUD

From the above list it will be seen that I now have a sprue of 10 HO ladders printed in Frosted Ultra Detail acrylic material and these come with the cast iron signal ladder base as part of the ladder.

Apart from use with the HO Fine Detail Signals, these ladders were also designed to replace the coarser ladder of the original basic White Strong and Flexible signals if the modeller so desires or for use on other suppliers signals.

10 x HO Frosted ultra Detail Ladders with Cast Iron ladder Bases
Platform handrails are to be bent up by the modeller from brass or phosphor bronze wire as required.