Search found 447 matches

by nigelcliffe
Tue Sep 22, 2020 1:05 pm
Forum: Lathe Work
Topic: Toyo ML1: any use?
Replies: 6
Views: 382

Re: Toyo ML1: any use?

Cheap often means "needs work", and looking at the Ebay listing its hard to determine the actual condition. Certainly not pristine, but amount of corrosion/wear is key to things. Tailstock looks worrying (the black around it), and can't determine if the dings and corrosion on the bed is cr...
by nigelcliffe
Fri Sep 04, 2020 9:24 am
Forum: Track and Turnouts
Topic: Spur gears
Replies: 37
Views: 3245

Re: Spur gears

Thank you for your reply Nigel. Does the Mod number equate to an actual dimension on one gear tooth. Gordon A Yes-ish. For an Rack (straight line of teeth), Module * PI = pitch of the teeth in mm. More useful is the pitch circle - the value used to calculate where two gearwheels mesh. Pitch Circle ...
by nigelcliffe
Sat Aug 29, 2020 8:45 am
Forum: Track and Turnouts
Topic: Spur gears
Replies: 37
Views: 3245

Re: Spur gears

Chaps, I see gears as being quoted as for example Mod 0.2 or Mod 0.5. What does this relate to please? Module number. A measure of the tooth size and spacing. The metric equivalent of DP numbers. Smaller Module numbers are smaller teeth. Very roughly, Mod 0.4 is similar to 64DP (and will often enga...
by nigelcliffe
Sat Aug 29, 2020 7:38 am
Forum: Track and Turnouts
Topic: Spur gears
Replies: 37
Views: 3245

Re: Spur gears

Stephan.wintner wrote:Just a source of small gears I've not seen mentioned :

http://kkpmo.istore.pl/en_US/index?currency=EUR



Mentioned in the fourth post in this thread....
by nigelcliffe
Sat Aug 22, 2020 7:32 am
Forum: Signals and Control Systems
Topic: Servos and DCC
Replies: 11
Views: 1571

Re: Servos and DCC

Either switch the frog using a microswitch which is operated by the mechanical movement of the servo, or fit a relay controlled by the Arduino on a second output. Or, if the wiring isn't excessive, the frog could be switched from a control panel using another pole on the switch which controls the tu...
by nigelcliffe
Thu Aug 06, 2020 8:18 am
Forum: Track and Turnouts
Topic: Spur gears
Replies: 37
Views: 3245

Re: Spur gears

There are outfits like KKPMO from Poland, who sell on website and Ebay as either KKPMO or Microantrieb. If there is stock, they have plastic and brass gears in a variety of sizes. (my experience of KKPMO is mixed - at their best great, but sometimes seem to disappear and not deal with significant or...
by nigelcliffe
Sun Aug 02, 2020 3:43 pm
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

Ignoring the centre-pull idea, where I was incoorect, this photo seems to confirm the linkage arrangement discussed in the thread. https://transportsofdelight.smugmug.com/RAILWAYS/BRITISH-DIESEL-AND-ELECTRIC/PRE-TOPS-DIESEL-LOCOMOTIVES/i-763vLLx Zooming well in, I think the upper linkage is visible,...
by nigelcliffe
Fri Jul 31, 2020 8:05 pm
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

Mike Edge (in the name of his wife Judith) does a kit for the earlier three 11700-2 which had the same brake arrangement. He is usually very knowledgeable in respect of the prototypes of his kits, so have you tried asking him? Yes, in part because I'm building one of his kits for 11706 (a different...
by nigelcliffe
Fri Jul 31, 2020 6:39 pm
Forum: Painting and Weathering
Topic: Phoenix Paints
Replies: 26
Views: 2526

Re: Phoenix Paints

I see on the Precision website that they are selling Sharman wheels but not at the sort of prices Mike charged! They are about twice the price of Alan Gibson driving wheels Well, there's an opportunity for someone to step in and do it cheaper with new technology :-) The photos on the Precision webs...
by nigelcliffe
Fri Jul 31, 2020 3:24 pm
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

I'm following all this so far. Just one more detail - the front linkage from the cross-rod... The cylinder is fine (RHS behind step), which has a lever to the cross-rod. Then what ? I'm guessing a lever in the centre of the rod, to a pull rod running along the centre line, splitting into a Y-shape, ...
by nigelcliffe
Fri Jul 31, 2020 11:38 am
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

I've been looking at the drawings in Modern Locomotives Illustrated 195; ….. Quite a bit of guesswork on inadequate data, but I hope it helps. Thanks Noel, yes, piecing that lot together I can see how it might work. Its not sophisticated, but not expecting sophisticated on a low-speed shunting loco...
by nigelcliffe
Fri Jul 31, 2020 10:19 am
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

This sort of loco: ….. Yes, one of those. Specifically the next one in the build sequence (11706), but they're going to be the same on this detail. I know there is an industrial version at the Bo'ness museum, but that's shut at present. I agree the brake linkages are likely to be similar to steam l...
by nigelcliffe
Thu Jul 30, 2020 5:06 pm
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

Re: brake pull rods on North British 0-4-0 shunter

Daddyman wrote:Can anything been worked out from these?


Unfortunately, that's the wrong loco.

D11700-11707 are different to the later NB locos, specifically the brakes which are between the wheels on the earlier locos. One brake shoe moves forwards the other backwards when apply braking forces.


- Nigel
by nigelcliffe
Thu Jul 30, 2020 8:02 am
Forum: Chassis and Suspensions
Topic: brake pull rods on North British 0-4-0 shunter
Replies: 14
Views: 814

brake pull rods on North British 0-4-0 shunter

I'm putting together a North British 0-4-0 shunter, BR 11706. I'm having trouble working out how the brake rods should be arranged. I can see the brake cylinder (behind RH front step), and a cross shaft at the front. The brake shoes and hangers mean the shoes move in opposite directions to apply the...
by nigelcliffe
Fri Jul 10, 2020 10:29 am
Forum: Track and Turnouts
Topic: Plywood sleepers
Replies: 11
Views: 953

Re: Plywood sleepers

An EM gauge modeller I know is using walnut sleepers, bought in strips from one of the model boat building companies, chopped to length with a little chopping tool. His view is the walnut take stains better and look more like sleepers than ply. His chairs are plastic, fixed by solvent to the sleeper.
by nigelcliffe
Sun Jun 21, 2020 8:35 am
Forum: Flymo748
Topic: Alan Gibson GER T26 (E4) kit build
Replies: 23
Views: 1212

Re: Alan Gibson GER T26 (E4) kit build

The E4 drawing included in this lot is the Lyn Brooks drawing a copy of which is included in the Alan Gibson kit Thanks, Will. So not worth investing then (all I need is the E4) - too many errors and no dimensions. You can have just the E4 drawing for under a pound. So, a better copy than the one i...
by nigelcliffe
Sun Jun 14, 2020 5:14 pm
Forum: Other Workshop Practice
Topic: A machining question.
Replies: 9
Views: 1248

Re: A machining question.

3D printing - I'd assumed we were talking about printing in metal. Which I've done (now running at many hundred parts), sending a CAD file to Materialize in Belgium. Their "high detail stainless" could produce the parts, but any shafts/running surfaces would need additional work, and the p...
by nigelcliffe
Sun Jun 14, 2020 11:02 am
Forum: Other Workshop Practice
Topic: A machining question.
Replies: 9
Views: 1248

Re: A machining question.

Mike Garwood wrote:What’s wrong with printing it (3D) ?


I've experience in printing metal centres for loco wheels in stainless. Its accurate, but not perfect, and any holes will need cleaning out.
If only needing one or two, and putting them on a single sprue it may be cost effective at about £30-£40.
by nigelcliffe
Sat Jun 13, 2020 3:53 pm
Forum: Other Workshop Practice
Topic: A machining question.
Replies: 9
Views: 1248

Re: A machining question.

I'd be tempted with "etch it" for the long sections - possibly more than one layer - then turn cylindrical parts to fit through the etch at each end, and join the whole lot together with solder of whatever temperature you can get away with.
by nigelcliffe
Thu Jun 11, 2020 6:20 pm
Forum: Chassis and Suspensions
Topic: Easing wheels tight to gauge
Replies: 27
Views: 2545

Re: Easing wheels tight to gauge

Alternative method, which may work in some cases if it doesn't get tangled in frame details and brake gear: Two pieces of angle, which can have one edge filed thin enough to slide between wheel and frames. Arrange so they are about opposite, and support across the jaws of an open vice. This supports...
by nigelcliffe
Mon Jun 08, 2020 9:05 am
Forum: Painting and Weathering
Topic: Spraying Lifecolor
Replies: 33
Views: 2311

Re: Spraying Lifecolor

……….. I've read some excellent reports about Winsor & Newton Galeria Matt varnish, with some users saying that it produces the mattest finish ever, and so have ordered a bottle to try it, one advantage being that I can airbrush it on as lightly as i want. I have a bottle of Cryla (Rowney) matt ...
by nigelcliffe
Wed Jun 03, 2020 4:37 pm
Forum: Steam Locomotives
Topic: Alan Gibson crankpin nuts
Replies: 20
Views: 1235

Re: Alan Gibson crankpin nuts

I've got 14BA nuts on some of my crank pins, and I need to look really closely to spot which ones! And a spanner or nut spinner on a hexagonal nut is easier and quicker than the round ones and pliers ... ;) You can also cheat the nut a little - round off two of the points (opposite ones) with a fil...
by nigelcliffe
Wed Jun 03, 2020 2:50 pm
Forum: Painting and Weathering
Topic: Spraying Lifecolor
Replies: 33
Views: 2311

Re: Spraying Lifecolor

Can't answer for Lifecolor. However, I've found that acrylics designed for airbrushes, such as Vallejo Model Air (there are others) are a delight. Set air pressure low into the brush. No p******g about with thinners trying to get the consistency of cream/treacle/beer/honey. Just a put a few drops st...
by nigelcliffe
Sat May 16, 2020 4:39 pm
Forum: DCC
Topic: Poor running with TCS decoder
Replies: 16
Views: 1450

Re: Poor running with TCS decoder

The failure I described, Nigel, actually happened in an 8 wheel tender where wheel was touching frame on curves and lack of insulation around motor. Disappointed a TCS won't shut down but I don't have one any more - gave it away. Anyway, it's yet another possibility. A further reason for keeping mo...
by nigelcliffe
Sat May 16, 2020 1:27 pm
Forum: DCC
Topic: Poor running with TCS decoder
Replies: 16
Views: 1450

Re: Poor running with TCS decoder

I think you've just shown that your problem is almost certainly in the installation. A dead short across the motor output should just cause the decoder to shut down. However, if you have a wheel, pick-up or bare joint intermittently touching the chassis/body and a motor terminal or other bare joint...

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