Search found 45 matches

by caitlin
Sat Sep 19, 2020 3:20 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

It's been a wee while, but I've not been idle. I've been working on two things. One a kind of steamy smokey affair: https://live.staticflickr.com/65535/50315058328_813a8b5c0f_c.jpg Which needs something to lower the volts a touch or PWM it to be a little less 'fast' I need to sort some relays for th...
by caitlin
Mon Aug 31, 2020 8:29 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

Cooling tower is 80mm tall. I've got a smidge further with electronics and have an arduino uno connected to JMRI. JMRI sees it and I can turn a light on and off with a physical button and in software. Not terribly exciting but I hope I can use it to interface a few things, street lighting, something...
by caitlin
Sat Aug 29, 2020 3:14 pm
Forum: T Gauge General Discussions
Topic: Newcomer here and track templates question.
Replies: 4
Views: 506

Re: Newcomer here and track templates question.

haha, oops. Have fun, or as much fun as you can with this maddeningly small wonderful hobby :)
by caitlin
Sat Aug 29, 2020 1:07 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

So I've lowered the base board because my cooling tower wouldn't let the lid close if it was raised up enough to allow a bridge to pass under the track. I've cut up some bits of MDF to work as track bed which can be lifted off the base board I assume by bits of wood glued and pinned at the appropria...
by caitlin
Thu Aug 27, 2020 12:34 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

Where did you get the tunnel from - or did you make it yourself? I made it out of primitive shapes in freecad, sized around a virtual model of a train so I knew the train and rails would fit. I've just recently got a PlA rapid prototyping machine and 'printed' the tunnels out with that. I'm pleasan...
by caitlin
Wed Aug 26, 2020 8:53 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I've been veeerrryy gradually starting to learn freecad and have achieved three things. A solid model that represents the bounding box of a train on some rails. A straight tunnel portal like an ICE train might go into or come out of and slightly more excitingly to me, a *curved* tunnel portal that m...
by caitlin
Sun Aug 23, 2020 3:49 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

it's a real challenge photographing things at this size isn't it?! This is probably too tight, but may work if raised up a matchstick, or perhaps reprinted a bit bigger. It's a Z model at 50% scale but that doesn't account for the size of the plastic railbed, i wager. I think I'll redo at 60 or 65% ...
by caitlin
Sun Aug 23, 2020 3:15 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I have to tweak my settings, I've not yet run any calibration for stringing or overhangs so these are touch fluffy and I don't yet know how to scale things properly but this holds some track off the floor so it's technically winning. https://live.staticflickr.com/65535/50258791316_0665d5f1be_c.jpg I...
by caitlin
Thu Aug 20, 2020 8:57 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I have ordered some 0402 leds and some 0402 size 560 ohm resistors. I may need to order a smaller soldering tip also. I hope my maths is right and that i can figure out a way to package this. Since the hot leads are both tied to the pickup rail I think I can get away with one resistor for both LEDs ...
by caitlin
Thu Aug 20, 2020 5:56 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

Oh dear, I tried switching positives with the yellow and white wire and that didn't work so I tried switching negatives, it does seem to be the ground side of the led which needs to go to the white and yellow wires, sadly i thought the light pack container resistors but clearly not... pooof no more ...
by caitlin
Thu Aug 20, 2020 2:11 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

Oh right, it was their website saying 'discontinued' that made me think the industry was in decline. I've been feeling a bit scared that T might be on the wane and manufacture was drying up. Is that not the case? I'm not sure how much of a rush I need to be in to grab a few long bits of track and so...
by caitlin
Wed Aug 19, 2020 6:32 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

If I read the function map out of the decoder I get this: https://live.staticflickr.com/65535/50245343782_3cb61160be_z.jpg I *think* F0 is what we're playing with since that's where the ticky boxes line up. Trying to poke the tiny wires with a multimeter without croc clips is impossible but I seem t...
by caitlin
Wed Aug 19, 2020 11:33 am
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

All the generic docs for 6 wire DCC deoders either return white and yellow via blue (which we don't have) or back to black \m/ heh. The bit I don't understand there is that black and red are both shooting up and down voltages because they're directly connected to the AC DCC power rails. I don't know...
by caitlin
Tue Aug 18, 2020 6:21 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I succumbed, although I have a degree in materials science and spit hate spit the spit term spit "3d" vomit "printer", things. I have ordered an ender 3 (it was so cheap!) basically to make bits for these trains. I've started figuring out slicing and have some calibration patterns to run when (if) t...
by caitlin
Tue Aug 18, 2020 11:27 am
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

It's the now discontinued DCX77z, I got three some years ago before I quit the hobby because it's too small :) I don't recall why that was the choice made at the time. It's got motor control and two functon outputs that I don't quite understand how to use because I don't know where ground is on an A...
by caitlin
Sun Aug 16, 2020 12:40 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I have two manual turnouts, I've not metered them but I think they pass power correctly that I can power the loop from the siding. This is probably a daft idea since I can't sneak a whole train down a siding anyway but I *COULD* do this: https://live.staticflickr.com/65535/50231637293_b08596d3d9_c.j...
by caitlin
Sat Aug 15, 2020 6:09 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

Re: failcase simplest of all the builds.

I have been minorly busy. I've made a baseboard is it called? kind of. I'm not sure this much bracing is 'enough' where would be most vital to brace elsewise? I am short of that wood now. https://live.staticflickr.com/65535/50229518871_cefb84f0cf_c.jpg It leaves a small gap down the right hand side ...
by caitlin
Thu Aug 13, 2020 8:23 pm
Forum: T Gauge Layouts
Topic: failcase simplest of all the builds.
Replies: 21
Views: 1208

failcase simplest of all the builds.

I have a flightcase, some 6mm MDF, a bit of wood shaped wood to brace it with and some carpet tape. I also have no idea what I'm doing but will be making my first mistakes in this thread. Nothing that's not been seen before. https://live.staticflickr.com/65535/50222363338_bf3a93878c_c.jpg I think I ...
by caitlin
Wed Aug 12, 2020 5:56 pm
Forum: T Gauge General Discussions
Topic: DCC Developments & Experimentation
Replies: 66
Views: 64933

Re: DCC Developments & Experimentation

I was using DCX77z decoders, but they seem to be discontinued now. What source are you guys using for the 65 or other similarly small units? CoastalDCC say that the smallest they have now are 8*8*2.5mm oh, I belatedly notice https://www.tgauge.com/product/395/250ma-5v-decoder is that the best thing ...
by caitlin
Sun Aug 09, 2020 10:39 am
Forum: T Gauge General Discussions
Topic: dcc (again) tiny decoder.
Replies: 47
Views: 59146

Re: dcc (again) tiny decoder.

Oh, that sounds obvious now I've heard it. Thanks.
I shall figure out which of my encoders are *not* fried and wedge one in my other engine then, what fun!