Search found 400 matches

by nigelcliffe
Wed Aug 14, 2019 3:33 pm
Forum: Electrics
Topic: Movement detector?
Replies: 9
Views: 726

Re: Movement detector?

Beam-breaking IR detector would seem to be pretty simple - needs a transmitting IR LED and receiving device. Plus power and an indicator (a visible LED) somewhere. Just check that the beam is broken by your stock, some plastics can be transparent to some wavelengths. Typical components need a 5v DC ...
by nigelcliffe
Sat Aug 10, 2019 12:17 pm
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 170
Views: 14274

Re: Scaleforum 2019

Tony W wrote:
Captain Kernow wrote:
If you're that short of material, why not just tell everyone that you need more articles for the journal?

You mean a whole album of alternative lyrics? :D

Tony


You may regret that.... I often end up with alternative lyrics to songs whilst doing something else.
by nigelcliffe
Sat Aug 10, 2019 8:30 am
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 170
Views: 14274

Re: Scaleforum 2019

Tim V wrote:
nigelcliffe wrote:If you're going to The Scaleforum
Be sure to wear some flowers in your hair
……….


Can I put this in the News?


Yes, if you want to use it.
It isn't that good - scope to improve the syllable stress patterns.


- Nigel
by nigelcliffe
Fri Aug 09, 2019 6:05 pm
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 170
Views: 14274

Re: Scaleforum 2019

If you're going to The Scaleforum Be sure to wear some flowers in your hair If you're going to The Scaleforum You're gonna meet some model people there For those who come to The Scaleforum Autumntime will be a compensated affair In the aisles of The Scaleforum Model people with flowers in their hair...
by nigelcliffe
Thu Jul 18, 2019 9:06 am
Forum: Starting in P4
Topic: Track Laying
Replies: 32
Views: 2472

Re: Track Laying

I know this is still "test bench", but before starting layout track-laying, I suggest experimenting with ballasting techniques. There are basically two approaches: ballast before or after fitting the chairs (and rails). The are advantages of ballasting with just sleepers in place - clearin...
by nigelcliffe
Thu Jul 04, 2019 4:56 pm
Forum: Tools and Techniques
Topic: Wheel cleaning
Replies: 11
Views: 856

Re: Wheel cleaning

My hobby horses include this alongside track cleaning, see another thread. I have used a number of methods over the years and found all to have drawbacks. I met Matthias from Germany last weekend at the superb Perth show. He was launching his machine which uses a cunning jiggler to rub wheel treads...
by nigelcliffe
Mon Jun 10, 2019 7:11 am
Forum: Railmotors, Railcars and Multiple Units
Topic: Why the big windows?
Replies: 23
Views: 3168

Re: Why the big windows?

philip-griffiths wrote:The one scene looked like Blencathra.


Nah, its the Gog Magog near Cambridge (which is slightly off-route for Norwich). If you get the camera angle right, it can look a bit like the lake district :-)
by nigelcliffe
Tue May 21, 2019 8:52 pm
Forum: Steam Locomotives
Topic: Brassmasters J94
Replies: 42
Views: 3676

Re: Brassmasters J94

Very Nice Jim, :thumb If it comes with the full motion, even if it does not operate that's great. I have just been making dummy ones, the main part you notice below the boiler is the large balance weight which moves according to the setting of the gears for forward and reverse motion. In DCC and us...
by nigelcliffe
Thu May 09, 2019 1:14 pm
Forum: DCC
Topic: DCC Bus Wire
Replies: 10
Views: 2240

Re: DCC Bus Wire

One small detail on the MERG DCO - if you have a RailCom based command station, you need the alternative firmware in the DCO's processor, otherwise it doesn't work with RailCom being present. You can turn off RailCom in the command station, but then loose the features it offers. With the alternative...
by nigelcliffe
Fri Apr 12, 2019 8:14 am
Forum: Wagons
Topic: problems making wagon brakes
Replies: 8
Views: 1133

Re: problems making wagon brakes

I wouldn't rule out 3D printing. I've been experimenting with iMaterialise.com, and their stainless steel option. [...] One of my friends has produced connecting rods and other chassis parts for a working 1:160 scale narrow gauge locomotive through this method. Interesting! Are there any photos in ...
by nigelcliffe
Tue Apr 09, 2019 7:36 am
Forum: Wagons
Topic: problems making wagon brakes
Replies: 8
Views: 1133

Re: problems making wagon brakes

I wouldn't rule out 3D printing. I've been experimenting with iMaterialise.com, and their stainless steel option. Main cross-section limit is about 0.5mm by 0.5mm (can be less in some cases). Detail is much finer than that. Provided you can keep the total volume of component and supporting/surroundi...
by nigelcliffe
Mon Apr 08, 2019 11:06 am
Forum: Exhibitions
Topic: 2019 S4 North
Replies: 37
Views: 6019

Re: 2019 S4 North

Is Terry studying the results on his pools coupon ?
..... Rolvenden 3, United Mills 3


- Nigel
by nigelcliffe
Thu Feb 07, 2019 3:05 pm
Forum: Other Workshop Practice
Topic: Mini Cutting Broaches
Replies: 5
Views: 2180

Re: Mini Cutting Broaches

if Cousin's won't play ball, then their competitors Cooksongold may have something suitable.
by nigelcliffe
Mon Feb 04, 2019 10:55 pm
Forum: Guest Book
Topic: flywheels or DCC - Oops
Replies: 6
Views: 701

Re: flywheels or DCC - Oops

I didn't intend "practical patch" to be a negative connotation. Apparently they make a huge helpful difference for sound decoders. (which I don't have). Personally I would opt for small keep alives rather than large. I hate the idea of a heavy fast moving train to be disconnected from it'...
by nigelcliffe
Mon Feb 04, 2019 6:15 pm
Forum: Guest Book
Topic: flywheels or DCC - Oops
Replies: 6
Views: 701

Re: flywheels or DCC - Oops

With DCC there is another choice: use the space for a mechanical flywheel or use the space for an electronic flywheel (aka "stay alive module"). The electronic version can work when the motor is stationary (see Zimo's very clever "nudge the loco along when it looses power on stopping...
by nigelcliffe
Mon Feb 04, 2019 10:14 am
Forum: Guest Book
Topic: flywheels or DCC - Oops
Replies: 6
Views: 701

Re: flywheels or DCC - Oops

Just wanted to make a small clarification. It's bemf that controls motors well without flywheels, not DCC per se. You can have bemf on DC controllers and DCC decoders without bemf - although nowadays its almost standard on newer DCC decoders. However if you want closed loop motor absolute speed and...
by nigelcliffe
Mon Dec 31, 2018 2:56 pm
Forum: Other Workshop Practice
Topic: best insulation material in loco?
Replies: 4
Views: 977

Re: best insulation material in loco?

I'm forced to put a DCC chip next to a tiny Mashima motor because of the small size of a loco. Any suggestions for an effective insulating material that will be no more than a millimeter or so thick to separate them and keep the chip as cool as possible? I use Tamiya masking tape. If there is space...
by nigelcliffe
Sat Dec 22, 2018 2:28 pm
Forum: Steam Locomotives
Topic: Any Wheel and size!
Replies: 76
Views: 9544

Re: Any Wheel and size!

I think form-tools are over-stated in their usefulness. Unless doing an awful lot of rims, and owning a very rigid lathe, they're not going to give you any benefit over a conventional tool held at the appropriate angles. The coning angle can be set on a top-slide on all but the most basic of lathes....
by nigelcliffe
Sat Dec 22, 2018 10:39 am
Forum: Steam Locomotives
Topic: Any Wheel and size!
Replies: 76
Views: 9544

Re: Any Wheel and size!

The tyres on an AG wheels are indeed an interference fit from the back, just how much of an interference fit has changed over the years. In the good old days there was a fair bit of criticism about tyres falling off ie being a loose fit. Colin Seymour has done something about this and the fit is no...
by nigelcliffe
Fri Dec 07, 2018 9:30 pm
Forum: Steam Locomotives
Topic: DJ Models Austerity
Replies: 15
Views: 2612

Re: DJ Models Austerity

I've not done anything with the loco wheels but note that DJ suggest feedback controllers such as a Pentroller will damage the loco. I'm not changing all my controllers for one engine. Is there a fix? Whilst the motor would probably be seen off by a crude low-frequency feedback device (eg. Gaugemas...
by nigelcliffe
Fri Nov 30, 2018 7:40 pm
Forum: Track and Turnouts
Topic: Colouring Sleepers
Replies: 24
Views: 3412

Re: Colouring Sleepers

My friend in the borders, building a large EM layout using plastic chairs, is using Walnut sleepers. He tried a lot of different types before making the decision. Bought in long lengths of appropriate cross-section from model boat building suppliers, which he chops on a little chopping tool to lengt...
by nigelcliffe
Sun Nov 25, 2018 10:48 pm
Forum: Steam Locomotives
Topic: Bachmann D11/2 conversion
Replies: 16
Views: 2374

Re: Bachmann D11/2 conversion

My expectation would be that if the coupling rods are a decent fit on the crankpins, and the wheels are not rattling in their bearings front-aft, then the coupling rods alone will be quieter and smoother. With both gears and rods you're fighting a loosing battle against two lots of running clearance...
by nigelcliffe
Tue Oct 30, 2018 6:54 pm
Forum: Signals and Control Systems
Topic: Mk II Lever Frame - Rolling the quadrant plate
Replies: 5
Views: 912

Re: Mk II Lever Frame - Rolling the quadrant plate

Doesn't it come out 2.33mm under size by using a Railway Modeller ?

- Nigel
by nigelcliffe
Thu Oct 25, 2018 10:14 am
Forum: Track and Turnouts
Topic: Radius Testing - Practical Experiments.
Replies: 60
Views: 6899

Re: Radius Testing - Practical Experiments.

DGs work (I know someone with a large EM layout under construction using them), and they've a long history in 2mm scale where the first versions were designed. But they're not a magic solution to everything, there are constraints in their width (even if a non-standard loop shape is formed). This isn...
by nigelcliffe
Wed Sep 19, 2018 5:26 pm
Forum: Couplings
Topic: Auto- Couplings , what choices - decisions
Replies: 36
Views: 4648

Re: Auto- Couplings , what choices - decisions

Another suggestion is "DG", very popular in 2mm circles ("D" and "G" being 2mm modellers). Its available in a variety of sizes, and I know a large EM layout being built using them. On paper, meets the requirements specified.


- Nigel

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