I have tried to keep my interest in the hobby going more as a distraction than anything else, the layout has had nothing done to it since March last year, but it will return to the blog.
So inevitably I have been working on some 3D printing stuff as the mental exercise works well.
As mentioned in previous posts I was working on several projects that have now been made available on my Signals Branch Shapeways Shop.
With apologies for the repeated photos, these items are:
- NSWGR A Frames in HO and 7mm Scales (point rodding supports from lever frames).
|7mm Scale A Frames (HO track behind)|
|HO A Frames - Still to be glued in place|
- A range of Fine Detail HO signals in Frosted Ultra Detail (FUD) and so far I have single arm 16ft - 30 inch arm, 18ft - 30 inch arm, 23ft - 36 inch arm and 27ft - 39 inch arm signals, more signals and arm types will follow as I find the time to draw them up.
|HO A Frames and high resolution FUD signal|
- NSWGR 1924 Derail in HO, a track arrangement at the end of a siding where it meets a main line to prevent wagons from fouling the main line. The plan below is also available on my Signals Branch Blog in the Links section.
- NSWGR 1936 Catch Point in HO, a more complicated version of the Derail with a moveable rail and a catch point indicator (a ground signal). The plan below is also available on my Signals Branch Blog in the Links section.
- NSWGR Catch Point Indicator in HO and 7mm Scale that can be made to work from a rod to the moving catch point blade.
|7mm Scale Pilot Model Test Print|
- A range of 7mm Scale signals in White Strong and Flexible (WSF) and so far I have single arm 16ft - 30 inch arm, 18ft - 30 inch arm, 23ft - 36 inch arm and 27ft - 39 inch arm signals, more signals and arm types will follow as I find the time to draw them up.
|'Proof of Concept' trial 7mm Scale 23ft signal|
More information and instructions for the above items can be found at my Signals Branch Blog.
Now a Possible Challenge for the N Scale Modellers
I have recently received a 3D print of a NSWGR 23ft signal as a 'Proof of Concept' trial.
The signal would be a challenge to assemble as it requires drilling some holes with a 0.3mm drill bit (smallest drill bit I know of) and using 0.008" (0.2mm) phosphor bronze wire from Tichy Train Group (Part #1100 - 10 lengths) as the operating wire. The modeller will have to have a steady hand and good eye sight.
One thing became obvious and that is that the counter weight lever on the post is probably going to have to be static with the operating wire coming up from the mechanism below to the arm. The reason for this is that holes to be drilled in the lever for the pivot and operating wires would mean that the lever would have be thickened too much and would look very wrong. The amount of movement it would go through would be quite small and also the holes being 0.3mm and the operating wire being 0.2mm the slop could cause operating difficulties. I am not sure how this can be got around for bracket signals, I will have to think about that.
The trial signal arm is pivoting on a brass pin and the usual method of printing the pivot shaft with the signal was not good as the shaft broke easily, more to think about.
Of course the signal could be made non-working.
Anyway at the moment the possibility of adding N Scale signals to my Signals Branch Shop at Shapeways is a reasonable bet unless I run into some problem I can't solve.
Now just to show that it can be made to work here is a video:
I hope that this post has been of some interest.