More 5" Track..

A quick end of year update, & Happy new year to all.

3x 5"straight & 1x curved 2.5m sections of track is now finished, took a day or two to sort out a couple dodgy welds. The curve was a learning curve. Had to redo it in places but now is derailment free finally. 

The flat wagon now runs again after the wheels rusted up over 5 years in the weather. Nothing CRC & lubrication couldn't fix. A few runs with 80+kg and its free again.

Also showing one of the destinations for the 5" railway,

1:8 Scale NZR Q Wagon Build

 The build continues, completed the hopper doors & door release mechanism. All screwed into place and working well. I used 4mm music wire for the axles. Its not exactly scale or perfect but I think is quite durable enough for play.

Showing the complete lineup, the little 0-4-0 Polly has been reduced to just a power bogie with side-rods sitting on a rough board. The wheels on the Q wagons are slightly to large with this track, so I might attached the wheel to a power drill and file them down a touch, since the E & P wagon i've given the wheels are more scale flange. The E & P wagons also have steel bar running the entire length of the chassis so have a good amount of weight combined with the suspension results in a nice smooth & satisfying run. 

Looking at the powered 'scateboard' I'm quite torn over what locomotive to build out of it, I could turn that into anything from a single fairlie through to a DL if I wanted to. I do need to sit inside it, and needs to take a large truck battery thats almost as wide as the 'scateboard'. A standard or vulcan railcar with a missing roof section?.

A quick back and forth.

1:8 Scale NZR P, Q & E Wagon Build

Another progress update. 

Finally cut up some 3mm mdf using printed the hopper parts and using them as a stencil. I 3d printed the brackets which there are 3 types to match their respective angles. Not sure why it took so long as it ended up being pretty simple. When I get some bog I will fill in the joins and give it a good sanding before the detailing goes on.

The E wagon was a pretty simple affair, just wanting a flat wagon this time so didn't bother with all the underneath area with this build. I've built a library of pictures for the E wagon & could be anything from a box, flat to a tank wagon. Could also be useful to have a couple flat wagons for the eventual coaling crane.

1:8 Scale NZR P Coal/Rubbish Wagon & Q Wagon Build

While stuck on the hopper build of the Q wagon dad gave me The Stoker magazine, issue July 1966 which has the following plan of the 3 Wheeler Coal Box wagon, since these are a local wagon its about time portland had some rolling around again, albeit reduced in scale. 

The main chassis is reinforced with 3x25mm steel, giving the wagon a nice solid heavy feel to it.

The hoppers look quite simple yet interesting, I'm thinking building e'm out of some nice wood n plastic.

Next on the agenda are the Q Hopper sides, so far I printed these but now am thinking of using these as stencils and fabricating some up out of something cheap. The wagons have headstocks and 3d printed hooks now attached.

1:8 P & Q's in varying stages of their build's a few days later, Hoppers remain elusive but progress is steady.

A neat project would be a working coal loading crane, in this scale could even use a car battery for weight. 

1:8 Scale NZR Q3 Hopper Wagon Build, day five

 At the end of day five I've now got 2 chassis and couplers of varying sizes to play with, the larger pair are far better to handle and feel quite strong enough for my needs. Now efforts are focused on the headstock area, braking & hopper.

Work on the track has come to a standstill as I try to source wood while keeping within a strict budget, although I did spend a large part of the day dismantling a wood pallet and then painfully hand sawing into the correct width.

The hopper has been sliced into 6 sections with a total build time of 25.4 hours and half a kg "ish" of material. And that's at about 3mm thickness of the walls with no rivet detail or straps etc, that I will add separately... "Yay screams the audience". So I'm further tinkering with the file to reduce this to say 1.5mm thickness to reduce print time. Which will make it rather flimsy, so.. what if I laminate it with a very thin sheet metal? then drilling holes in the appropriate places and using actual rivets, after smearing no more nails or PVA glue for permanent adhesion. I could build a hopper from scratch but it's somehow important the whole thing be 3d printed, after all with the right preparation and reinforcement ABS plastic is incredibly strong when left outdoors in the harsh UV & humid conditions of New Zealand's climate. If I did build it out of steel it would no doubt rust away after 5 years knowing my handiwork. 

1:8 Scale NZR Q3 Hopper Wagon Build, day three

Day three see's the end platforms finished with hopper end cradles attached, figure before I do the hopper I should print a second wagon frame so I can play with the automatic couplers. Regarding the second frame the bearings have been altered in design to allow a 10mm Ext Dia; 5mm Int dia Bearing to be imbedded into the 3d printed bearing by press fit. I've doubled up the springs with a heavier one that snuggly fit outside the existing spring.

More wheels completed and fixed to a 3.97mm Steel axle. Hopefully tomorrow the second frame will be started/finished. 2kg of silver ABS is up next, I wanted black but this was in stock and sounded interesting enough to pursue.

1:8 Scale NZR Q3 Hopper Wagon Build, day two

More progress on the hopper wagon for the 5inch Railway, All I set out to do this weekend was weld up some track & simply expand my railway. First thing on the morning we picked up the steel I figured I would 3d print a large wheel in 1:8 scale just for fun, after it printed I realized I should print a second wheel, then I knew I needed 2 more to build a wagon. While looking up my past projects I came along the 1:24 Q3 wagon files and before I knew it I could visualize me and a rake of  Q coal wagons with even a guards van running along the 5" track. 

Onto the build, the main frame members are now fixed together, with 3x25mm steel bar added for weight & some stiffness. I'm going to widen the channel to allow a steel bar to neatly fit inside & running the full length of the wagon. Currently it needs 2mm shaved off the bar so we will get it on the next one. Currently printing the end flat plates, I've reduced the thickness of them to 3mm to save material. After that its onto the hopper cradle then the hopper itself, the hopper currently has presented me with a question of printing the rivets or not, if I left it a hole I could get some small rivets and install them, that would then enable me to use actual metal strapping for assembling the hopper in a prototypical way. 

Getting these wheels cast in metal is becoming increasingly critical.

5 Inch Gauge

Recently to celebrate my recent 40th birthday my dad shouted me a couple hundred $ of steel to build and expand my 5 inch layout. With dad in tow we drove to Vulcan Steel in whangarei to purchase 3x25mm steel bar cut into 2.5mtr lengths so to fit the car. Already 8metres were cut into 25cm lengths to form the sleepers. Welding with a very old MIG welder with the highest setting it seems to be doing the job, I need to drag the ARC welder out and see if that's better suited. Yet to unpack the grinder and clean things up, blury pics taken in a very dark garage. Also need to sort out some better lighting.

In preparation for welding the track together I knew I needed a Jig of some sort, so I quickly designed handy spacers in CAD software that would friction grip and hold the track in place & 3D printed half a dozen or so, these proved the value hugely. So much so I'm printing some to hold the track in place for the turnouts & make things easier before I weld.

That got me thinking about wagons and what I could do, watching clips on youtube some places run scale wagons, not to sit on just for decoration. So my spin is to 3d print a working 1:8 Scale NZR Q wagon, although with not so prototypical couplers. I found some neat american automatic couplers and decided to download the file and experiment, sorta knowing how they worked but never really opened one up until now. Heres a link https://www.thingiverse.com/thing:4700824

The ABS Plastic I use is very strong, i'd be keen to hook them up to a scale and do a load test. Me and dad both held a coupler each and gave it a good tug, nothing broke so i've decided to use em practically until they brake apart.

I'm using meccano for the axle, although I need to find something sustainable if I want a rake of these. I purchased some "Utility Comp Springs" from bunnings. Also of note are hand brakes that will actually work.

A "test" print of the couplers, the next pair will be twice as large.

Axle boxes & frame with springs installed. Also, working grease doors, although I only need a small reservoir if any grease at all. 

24 Hours after coming up with the Idea of printing a 1:8 Scale NZR Q wagon

The initial plan calls for 2 straights then at least 2 curved sections to make 90degrees and then lastly a turnout. From there one can only dream.

Plate Girder Bridge Continued

 The bridges cosmetic & safety team have really gone overboard with the inclusion of 3d Printed sleeper straps. If I were really serious about detail I would spend the time doubling the number of sleepers, Its tempting to print some sleeper ends at the very least.

Also of note is the TR logo on the Dixie, I asked my brother to print a black and white logo of the approximate size, then carefully cut the letters out and simply trace the outline using a fine pencil on the locomotive. 

Actually painting is quite nerve wracking, but with a very small & fine brush I carefully filled in the dark blue around the pencil line. All in all it came out better than a decal would have.

In this shot, pre handrails, just visible below the fuel tank is a switch that controls the LED 3v lights. Turn the loco upside down and a 2x AA battery cradle can be accessed. Main headlight driven by track power.

*Update* Later that day..
Inspired by the post, I popped into the local model shop and purchased 1.2mm music wire and promptly went about installing them.
The handrails are cemented only to the chassis.
The cab, long and short hood joins are removable.

Lego Chain attached to the handbrake, not quite scale.

All efforts now reside on detailing her rear end, and underneath the chassis, pipping etc.