Installing Truck-Mount TN Couplers

オロネ25-901 (with body-mount TN coupler) and オハネ25-100 (with truck-mount TN coupler)

Not every Tomix or Micro Ace train accepts the fancy-pants body-mount TN couplers. Sometimes you have to make do with compromises. Which is what Tomix’s truck-mount TN couplers are: A compromise. They work, but they’re not nearly as cool, and don’t look quite as good. And they’re harder to install. But, in the end, I think they are still worthwhile to bother with. Here’s how to install them.

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LED Driver: Custom Circuit Boards

The boards I received in the mail, about two inches long by one-and-a-half wide.

I built a prototype. Then I designed a PCB. This weekend I received a set of my very first custom-designed circuit boards. It’s quite a thrill to hold an item manufactured to your own specifications. Best of all, I ordered two, but was sent four. Thanks to BatchPCB for their generosity in this regard. Very nice. I designed the board using the EAGLE circuit design software on my MacBook, which had a weird learning curve but isn’t too bad to use. Once I complete testing of the boards, and make any necessary tweaks to the designs, I’ll post the EAGLE files here for anyone who’d like them.

I still have to order some parts to populate these boards (almost all SMD), but I have code ready to test these things out. Once the code is a little more polished, I’ll make that available too. Exciting days ahead!

Kato 651系 DCC Pt 1.5: Interior Lights Nearly Done

Just an update on this project. I managed three more cars in one evening, for a total of four out of seven. It’s tedious going, but I’ve got the hang of it now. What’s slowing me down is cleaning the trucks: They’re filthy! Spent the evening with a bowl of rubbing alcohol and a supply of toothpicks. I figure I can complete the conversion to LEDs in one more evening. Then I can move on to actually installing decoders.

Kato 651系 DCC Pt 1: Upgrading Interior Lights

Kato 10-173 651系 'Super Hitachi'

So, you have just purchaed Kato 10-173 651系 (651-series) “Super Hitachi”, and want to know how to convert it to DCC. I’ve just begun this process myself; here is part one (of many!) of my report.

The 651系 is factory-fitted with interior lighting, a nice touch. But, being bulbs, those lights have to go. For one, they draw a ton of current—55mA/bulb @ 9 bulbs = almost half an ampere!—which limits the number of trains that my Digitrax Zephyr can drive simultaneously from two to one. For another, bulbs get hot when powered by AC, and DCC is AC. Some people have reported that Kato’s bulb-based interior lights cause meltdowns when run on DCC. I don’t have a link, because I think this claim is largely apocryphal, but Kato nevertheless cautions against using their bulb kits with DCC. Or at least they did until they discontinued those sets. Anyway, Kato’s LED interior lighting kits aren’t compatible with the 651系. You’ll see why below. This means we’re going to have to improvise something new if we want to run out 651系 on DCC.

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Next DCC Conquest: Kato 651-series

The EF81 done, I’ve been trying to decide what DCC project to tackle next. I’ve settled on my Kato 651-series for several reasons. First, the set is being re-released next month, which means a new wave(let) of interest. It also means a new wave of spare parts if I mess up. Too, the pre-fitted interior lighting—bulbs all, prone to melting the roof when powered by DCC, and custom tailored to each carriage—present an intriguing challenge.

I’ve already begun ordering parts, so look forward to the first posts in a couple of weeks.

Tomix EF81 DCC Pt 2: Small Victories

It lives! Tomix EF81 with working DCC provided by a TCS CN-GP.

Read Part 1.

It’s done. Well, almost. [Update 10 Jan 2010: Yep, it's done.] Anyway, it works, and that’s what counts. Here then I recount the two hours I spent last night making it work, and the year of effort that culminated in those two glorious hours. (Yes, it takes me about one year to install one decoder. No, I’m not that slow: it’s just a function of how much free time I have, and how I choose to spend it.)

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2009 Year-End Retrospective

The year—indeed, the decade—is hours away from being over. Time for a year-end retrospective in numbers. I’ll try to be concise.

Views per Month 2009

Figure 1: Views per Month 2009: What happened!?

Figure 1 reveals something of a roller-coaster of readership. Looks like we just returned to the station, too. Views were down in July because I was in Australia that month, and not really writing. So no-one was reading, either. Then with the start of the semester, my output dropped again, and hasn’t really recovered. The red line is a trendline produced by the latest in statistical analysis techniques—as you can see, it shows a definite upswing in readership over the year. Also, as you can see, it lies.

OK, so people have stopped looking at my blog. But people did look at it: What did they look at?

Readers visiting my blog appear to be very interested in what I run, and what I’d like to run. That’s a little surprising. Unless all those hits were me admiring my collection or desperately trying to recall what I wanted to plan my next purchase. DCC topics and reviews make up the majority of the rest, which is perhaps not unsurprising. I’ll try to keep pumping out DCC articles and product reviews next year to satisfy what few of you are left. My post on Bill’s blog (Tomix N-Gauge Track) remains as popular as it was last year! But that last entry is a bit surprising, however.

Well, who was sending me all this traffic, I wonder?

That JNSForum is my primary source of traffic is unsurprising, because that’s the only place that I actively pimp advertise this site. T Gauge Headquarters sent me a lot of traffic, but since David (the author) and I got into an argument on one of his blogs (I forget which one), he has since unfriended me. So no more traffic from that source—this is no doubt a contributing cause to the downturn in readership. Most of the remainder are acquaintances of mine who also run Japanese train blogs (and who likely make up the core of my remaining readership: Thanks, y’all, for sticking with me!). But what is “Railway Passion”? As it turns out, it’s a forum in Russian about trains and model trains, and they had a thread on favorite foreign models; My Suigun Line diorama got a mention (yay!) which explains the mystery about it above.

What about search engines?

  1. tomix — 44
  2. akihabara station — 26
  3. paper model — 13
  4. kato em13 — 12
  5. color schemes of japanese freight locomotives — 11
  6. okoba station — 11
  7. girder truss — 10
  8. tomix track — 10
  9. pepakura — 9
  10. kato dd51 dcc — 9
  11. e851 seibu railway class locomotive — 8
  12. n gauge layouts — 8
  13. japanese ef81 — 7
  14. tomix kiha decoder — 7
  15. scratch building bridge — 7

Top Search Terms (with hit counts)

I suppose there is nothing terribly surprising. “Okoba Station” must come from my links to Railmind, who at one point at least was considering modeling that very interesting junction. I do not quite know why a search for “pepakura” turns up my site so apparently reliably (pepakura is Japanese software for producing paper models).

So, there it is: This blog in numbers. Not terribly interesting, but I feel a compulsion to compile this data. In seriousness (or at least, not in half-joking self-deprecation), thanks to all my readers for, well, reading; and especially thanks to those who consistently comment (particularly Quinntopia and Disturbman), because you keep my spirits up, and my keyboard working!

Laying Asphalt

Without any kind of warning device, the local commuter train is likely to strike village traffic!

Without any kind of warning device, the local commuter train is likely to strike village traffic!

Shōgatsu has a road, or part of one. The as-of-yet unnamed village (suggestions, anyone?) needs a road connection to the outside world—trains run on only a very irregular schedule and often bypass the station.

Building the road was dead simple. I took a scrap piece of 0.5mm styrene sheet (have you noticed that this is my favorite building material?), and carved into shape. I used a bit of track to make sure that it would just abut to the existing curve to make a level crossing, and then I carved out a small piece of plastic to sit between the rails at the level crossing.

I spray painted the plastic white, then used a bit of graphic tape left over from a previous project to mask off the center line and the stop line. I then painted (with a brush; I was too lazy to pull out the airbrush, although I should have) the bits with a very dark gray, and after removing the masking tape, I drybrushed the whole thing with a medium gray. Then I added an oil slick by the stop line with a bit of Tamiya “Smoke”. I don’t know what this stuff is (it stinks!), or what it is meant for, but it is absolutely perfect for simulating nasty oily messes.

And that’s it! Instant roadway.

Pouring Concrete on Shōgatsu

Plastic screen retaining wall and abutment.

Plastic screen retaining wall and abutment.

Not literally, of course. In addition to planting hundreds of trees (and yet, the mountains are still rather bare!) I’ve been constructing retaining walls and abutments. The process is really simple. I find an area of the layout that needs a retaining wall; I’ve left these areas bare to make them easier to find later. I measure a bit of 0.5mm styrene sheet to fit, and using some PVA (white) glue. I affix plastic window screen to simulate the kind of stones often used to construct retaining walls; I then trim the screen to fit once the glue has dried. The piece I’m working on now combines a retaining wall with a bridge abutment; The abutment is unadorned plastic.

The finished product.

The finished product.

I’ll paint the whole thing with medium gray acrylic paint, and then drybrush it several times with lighter shades of gray. Then I apply thin black ink to shade the screen and to simulate grime and dirt. Finally, I will use a little PVA glue to apply fine ground foam, and small tufts of ground foam here and there to represent vegetative growth. RInse, wash, repeat!

Installing Body-Mount TN Couplers

Rapido couplers couple loosely; the gap between carraiges is about 6mm.

Rapido couplers couple loosely; the gap between carraiges is about 6mm.

Most of your trains look like this: Big, bulky Rapido couplers and nearly a scale meter of space between the cars. Your passengers have to get a running start to leap to the next carriage! What to do? The obvious answer is to install TN couplers. But this is a Micro Ace model, and the info sheet doesn’t mention anything about them. Can TN couplers even be fitted?

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