Search found 22 matches

by caitlin
Fri Nov 27, 2015 2:52 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

What I really need is for CT to sponsor me, since I exclusively use that single decoder of theirs. There's actually LOADS of room in the ICE chassis if you have steady enough hands for the wiring. It's really ALL about the packaging on the wee boards. I wish I could afford the BR train and start fig...
by caitlin
Thu Nov 26, 2015 11:25 am
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

don't panic, in trying to get the wiring better seated for a closer shell fit so the slam panel would go on the nose perfectly i shorted something and evaporated two springs.

I shall order some more and press on :D
by caitlin
Wed Nov 25, 2015 10:33 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

I hope this thread isn't too damnably boring for anyone who reads the forum, but i achieved this: https://vimeo.com/146945663 lights do the right thing in each direction! I need to get the little panel back on the bottom of the nose to lightblank the spill from the red, but it's all on the inside! w...
by caitlin
Tue Nov 24, 2015 9:03 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

There really isn't room to do anything much with the lighting unit. I've also realised that the BR units I also want to run are on a 16M unit which has almost zero space for the decoder. I'm a bit dejected tonight. However I did manage to tin some enamelled wire and loom up the lighting unit for bon...
by caitlin
Sun Nov 22, 2015 5:32 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

Visiting the lighting situation again in the ICE trains I spent an hour trying to trace the little circuit board which is so fiddly and given I have quite meaty multimeter probes it's pretty hard to figure out what's connected to what, it's a double sided board with at least one resistor on it, a th...
by caitlin
Sat Nov 21, 2015 8:55 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

I've ordered some points, and I have a servo. I've figured out how to get the JMRI sensor screen to flip from inactive to active when prodded on the Raspberry Pi's GPIO pins. I think I'm going to try and make an end to end layout rather than a goes round and round one, with a couple of loops in the ...
by caitlin
Thu Nov 19, 2015 11:28 pm
Forum: 3D Printing for T Gauge
Topic: scaling and height
Replies: 4
Views: 4103

Re: scaling and height

but is my general scaling of the object right? should i just extend it downwards by the height of the track, or would i scale it up by say 20% overall.
I'm not really sure what the best approach is.
by caitlin
Thu Nov 19, 2015 11:01 pm
Forum: 3D Printing for T Gauge
Topic: scaling and height
Replies: 4
Views: 4103

scaling and height

This looks about the right size: https://c2.staticflickr.com/6/5763/23164324721_d64d0987e4.jpg Hold up though, this doesn't at all! https://c2.staticflickr.com/6/5815/22832596940_9298927b31.jpg would one print this bigger, or sit it on a raised embankment. Also, that's my first try at a print, could...
by caitlin
Mon Nov 16, 2015 3:41 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

A slightly different, more exciting (to me) video would be: https://vimeo.com/145865800 I've had to drop the lighting out of the ICE unit, but I have two functions on the DCC board remaining and I have hopes of getting lighting back. Thing I have to figure out now are: "how does one run a multi-unit...
by caitlin
Sun Nov 15, 2015 5:22 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

Pretty standard, I expect, but all you have to do is make a public post on a forum to embarrass yourself, then clean your track discover that you have appalling power pickup, add bridging wires so you can pick up from front and rear bogies and you have a dcc t-gauge train. https://vimeo.com/14578258...
by caitlin
Sat Nov 14, 2015 6:53 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

I'm using a sprog 3 and JMRI with black and red wires connected to the bogie and orange and grey wires connected to the motor. When i read and write values to the decoder the motor does little glitchy movements so electrons certainly have the option of getting places. After I've read and set some va...
by caitlin
Sun Sep 13, 2015 6:08 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

With a slight sadface, I think I've fried my decoder. I did see it briefly with decoder pro, and it was able to tell me its settings, but after i disconnect it from the test loom i was using and bonded it to a train's power rails it was no more in evidence and I've not seen it report anything since....
by caitlin
Fri Jul 24, 2015 9:08 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

I've not vanished, but it's slow progress, I've relocated two of 6 wires on the dcc decoder and I'm waiting for a booster and encoder to arrive. I've got a RPi2 setup with a skinny Debian install and JMRI on it. Some tweezers to hold the stupidly small decoder in the clamps of helping hands is prett...
by caitlin
Mon Jul 13, 2015 8:46 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

I'm not convinced I yet understand how dcc works with multiheaded trains and I think that one of the carriages in my 8 car ICE train (which survived about 10 mins before being cracked open, poor thing) is a stealth tractor unit. I'd either need to wire three motors together on a single dcc controlle...
by caitlin
Mon Jul 13, 2015 7:27 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

The dcc board is a pretty neat fit actually: https://farm4.staticflickr.com/3740/19478792028_915079005d.jpg https://farm4.staticflickr.com/3679/19045887393_eed8a282cb.jpg That would functionally go in there if the lighting board were ditched and the leads re-soldered to leave the board at 90 degrees...
by caitlin
Sat Jul 11, 2015 11:05 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

What value did you go for? Do you actually run that chassis much at 14v on the rails? I gathered before this thread that I was trailblazing, but knowing now that you've done some of the work already I'd dearly love to know your numbers to speed up my sciencing (and reduce expensive messed up motors!)
by caitlin
Fri Jul 10, 2015 8:37 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

SmallCentral: What's the small component you have in series with the orange wire? Is that anything to do with controlling the voltage to the motor? I plan to run my rails at 12v and protect the motor either with voltage dividing or limiting the length of the pwm, assuming 10v would only ever reach t...
by caitlin
Tue Jul 07, 2015 9:51 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

And thanks to the confidence SmallCentral has put in me I've grabbed a tiny tiny dcc decoder. I didn't get it from digitrains in the end because of the friction they create by insisting on website registration and an implication that they'll only ship to a cardholders address. It may yet prove a mis...
by caitlin
Mon Jul 06, 2015 8:57 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

Whoops, I bought a tiny tiny train.
by caitlin
Sun Jul 05, 2015 10:03 pm
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 41
Views: 55633

Re: dcc (again) tiny decoder.

Having dug out the best I'd found other than what I posted, it was you posting it!

viewtopic.php?f=10&t=42&p=272&hilit=dcc%2A#p274

The ones in my first post are a different shape :/ (I thought they were smaller, but maybe not! :/ just smaller in ONE direction )