Search found 1146 matches

by Philip Hall
Wed Apr 01, 2020 11:44 pm
Forum: Where to Find?
Topic: Marking gauge?
Replies: 16
Views: 426

Re: Marking gauge?

I have used an Olfa scrawker to scribe and break off strips and it works well, just requiring a bit of filing to clean up the edge. The other option is to find someone with a guillotine to cut some strip for you.

Philip
by Philip Hall
Mon Mar 30, 2020 7:21 pm
Forum: Tim V
Topic: Tim V's workbench - broad gauge tomfoolery
Replies: 395
Views: 122179

Re: Tim V's workbench - broad gauge tomfoolery

They do look like the Brimalm gearboxes that were part of DynaDrive. Quite a low ratio, maybe 30:1 or thereabouts.

Philip
by Philip Hall
Mon Mar 30, 2020 5:13 pm
Forum: Steam Locomotives
Topic: Motors for locos
Replies: 18
Views: 1027

Re: Motors for locos

I have checked with a friend who has a Hall and a Castle built by John Hayes, and he has confirmed that these both have RG4s fitted with the 16mm motor. So there is room in the firebox.

Philip
by Philip Hall
Mon Mar 30, 2020 8:35 am
Forum: Steam Locomotives
Topic: Motors for locos
Replies: 18
Views: 1027

Re: Motors for locos

16mm should be fine for big engines like these. Certainly 1616 and 1624 Portescap RG4s would fit.

Philip
by Philip Hall
Thu Mar 26, 2020 1:21 am
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 329
Views: 52236

Re: Brimsdown-The last grand project.

Tony, do you find that the solder joint is strong enough to last, with the slight flexing of the joint each time the turnout is thrown? I have been thinking of using glass fibre strip with a pin inserted from below to solder the blades to (Norman Solomon’s system) which avoids this flexing.

Philip
by Philip Hall
Wed Mar 25, 2020 12:03 am
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

Thanks Dave, A friend has just sent me some old Jackson 14mm wheels to reduce to 13 mm for a special vehicle. Although it’s 00, I shall try your 62° angle suggestion, and I was going to do a parallel tread anyway. It’s good to know I’m not alone in occasionally not having any coning! Philip Philip
by Philip Hall
Tue Mar 24, 2020 6:03 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

Hi Tim, My skimming off the back of the flanges in EM was in response to an EM customer who required an increased b-b beyond that which results from using the standard EM Markits axle. That axle usually gives a b-b of 16.45mm which is wrong for any standard in EM, and my customer uses (mostly) AG, S...
by Philip Hall
Tue Mar 24, 2020 2:00 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

Although I am still not going to recommend turning down a Markits wheel to P4, I have just spent an hour or so taking a bit off the back of the tyres of some driving wheels to increase the back to back for EM, and also to slim down the flanges a bit. When I had finished, the tyre width came out at 2...
by Philip Hall
Mon Mar 23, 2020 7:52 pm
Forum: On My Workbench
Topic: The Socially-Distanced Challenge - Announcement thread
Replies: 40
Views: 1669

Re: The Socially-Distanced Challenge - Announcement thread

Maybe about the same time as Rod, because it's so long ago and I can't remember the date: I have somewhere a Jidenco (don't laugh) Beattie Well Tank kit that I started a new scratchbuilt chassis for at one of Iain Rice's Study Centre weeks (or weekends). Iain convinced me that the supplied chassis w...
by Philip Hall
Sun Mar 22, 2020 11:55 am
Forum: On My Workbench
Topic: The Socially-Distanced Challenge - Announcement thread
Replies: 40
Views: 1669

Re: The Socially-Distanced Challenge - Announcement thread

Reminds me of ‘when I were a lad’ and Dad would drive us past the (closed) station during our annual holidays. And the big hotel adjacent - was it the ‘Royal Spithead’?

Philip
by Philip Hall
Sat Mar 21, 2020 11:58 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

Just to say that the wheels can be skimmed at the back, I have done this a few times because the customer required an EM back to back of 16.65 mm and the supplied EM axle gives you 16.45mm. This also resulted in a slimmer flange profile (also requested) after I had rounded it off with a file. I woul...
by Philip Hall
Sat Mar 21, 2020 10:42 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

I should make it clear that I’m not advocating the reprofiling of Markits wheels to P4, merely that it is possible if you want to go to all that trouble. Generally I don’t. The odd occasions I have done things with Markits wheels have been in response to customers who wanted a thinner flange and gre...
by Philip Hall
Sat Mar 21, 2020 4:41 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

I think RP25 is as fine as it gets. 247 Developments used to stock the P4 Markits axles. They also did a nice little etched washer which is useful for increasing the back to back dimension in EM. Turning the wheel down to P4 is quite possible but requires a form tool for a proper job. One problem (w...
by Philip Hall
Fri Mar 20, 2020 5:30 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

I don’t know how Tony does it either. I don’t think he uses tender pickups but I wouldn't build a tender engine without them, rigid, compensated or sprung. I find I get steadier running and reliable starts as a result. For the same reason I have installed pickups on the leading and trailing trucks o...
by Philip Hall
Fri Mar 20, 2020 5:16 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 329
Views: 52236

Re: Brimsdown-The last grand project.

I was lucky to acquire some ‘ends of reels’ from a local alarm company and although It’s a bit thin, is high quality and multi-strand, so if I have any doubts about the current carrying capacity I can just twist a couple of the cores together. It will certainly do for wiring of turnouts and track fe...
by Philip Hall
Thu Mar 19, 2020 11:38 am
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

This is interesting, as I have never replaced a tender chassis in any of the conversions I have done, either in P4 or EM. I do, however, always add more weight (tenders are always far too light) and ensure that there is some up and down movement on the centre axles. Also I make sure that the tender ...
by Philip Hall
Wed Mar 18, 2020 3:23 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

I wouldn’t build a chassis rigid, getting it absolutely plumb is very difficult and if it rocks in any way you could be in trouble. The RTR boys put these things together on a production line and quality machinery. It’s OK in 00 and to a lesser extent in EM but our minuscule flanges give much less r...
by Philip Hall
Wed Mar 18, 2020 11:01 am
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 62
Views: 2230

Re: Rigid Chassis Locos?

As Gordon says, track quality must be high. Given that, I have had no problems. I have converted lots of Hornby and Bachmann engines (steam, and not little ones either) over the years and the running has been very good indeed. I don’t think I’ve ever heard of anything falling off for lack of suspens...
by Philip Hall
Tue Mar 10, 2020 12:14 am
Forum: Track and Turnouts
Topic: On building track - straight onto the baseboard?
Replies: 82
Views: 20952

Re: On building track - straight onto the baseboard?

I too want to control track levels, particularly since I will be using quite a few unsprung and uncompensated RTR engines and stock, along with a touch of superelevation here and there. I also like silent running, but the ‘quiet’ track almost seems too quiet to me! I did think of laying track on foa...
by Philip Hall
Wed Mar 04, 2020 4:40 pm
Forum: Other Workshop Practice
Topic: Fixing Steel Axle to Plastic Gear
Replies: 10
Views: 987

Re: Fixing Steel Axle to Plastic Gear

I abrade the axle with a file, but often drill a hole through the gear into the axle at 45° and insert a nickel silver pin.

I am a bit suspicious of any kind of glue where oily plastic is involved, especially where mechanical strength is required, hence playing safe(er) with a pin.

Philip
by Philip Hall
Tue Mar 03, 2020 8:47 pm
Forum: Starting in P4
Topic: First chassis in P4
Replies: 49
Views: 2626

Re: First chassis in P4

David, there is no need to touch the hole in the Gibson wheel. The crankpin screw cuts its
own thread in the wheel and you tighten it into the wheel. This is when you will find out whether the pin is vertical or not. If it isn’t, I just bend it straight!

Philip
by Philip Hall
Tue Mar 03, 2020 8:23 am
Forum: Starting in P4
Topic: First chassis in P4
Replies: 49
Views: 2626

Re: First chassis in P4

You would almost certainly have an easier time using Gibson crankpins, they are designed for the wheel, but do make sure that the hole in the wheel is vertical. The bushes supplied will be nominally 1.5mm (in practice perhaps a bit less) and the crankpin nut will screw onto the crankpin which is saf...
by Philip Hall
Tue Feb 25, 2020 3:48 pm
Forum: Wagons
Topic: Queen Mary Bogies
Replies: 4
Views: 551

Re: Queen Mary Bogies

When I did my Queen Mary I just added some detail, steps, sandpipes, some rigging etc., to the Bachmann bogies. Not quite as nice but it looks the part. I was tempted to use some Hornby bogies instead, which are beautiful renditions, but chose the cheap path. The Roxey etched bogies are fine, though...
by Philip Hall
Tue Feb 25, 2020 7:31 am
Forum: Chassis and Suspensions
Topic: Best wire for collectors
Replies: 14
Views: 1316

Re: Best wire for collectors

I prefer 0.3mm hard brass wire mostly, bearing on the edge of the flange as Dave has said. Wound in a few coils this stays springy with minimal contact pressure.

Philip
by Philip Hall
Fri Feb 14, 2020 5:19 pm
Forum: Trains: Model and Prototype
Topic: GWR Locomotive axles
Replies: 2
Views: 348

Re: GWR Locomotive axles

Beware there are many kinds of turning centres (indents). Ultrascale indents (for example) are quite pronounced, whereas on some engines they can almost look like pin pricks. Look at a Dukedog and you will find that it has a small centre deepened by a big chamfer on the edge. I prefer to put in my o...

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