Search found 87 matches

by Dave Holt
Mon Jun 17, 2019 7:12 pm
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

Mike,
They're filed down brass lace makers pins. Just held in a pin-chuck and rotated over a file to reduce the diameter and then thinned down.
Dave.
by Dave Holt
Sun Jun 16, 2019 8:39 pm
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

After a period of reluctance to actually do anything, I've finally roused myself to make and fit the cylinder drain cocks and operating mechanism to the cylinder/valve gear unit. To be honest, my efforts probably fall into the "artistic impression" category, rather than a scale reproductio...
by Dave Holt
Thu Jun 13, 2019 8:24 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 287
Views: 35184

Re: Brimsdown-The last grand project.

All very impressive, Tony. As a matter of interest, how many tie bars/stretchers does a set of E switches have and how many functional ones do you intend to fit?
Dave.
by Dave Holt
Wed May 15, 2019 9:57 am
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

As Philip says, the body moulding is rather old (and not much improved on the latest version, as I understand) and is definitely not up to current RTR standards. Interestingly, on another web site, Larry Goddard made one of these tanks by replacing the boiler unit (not sure if it included the front ...
by Dave Holt
Mon May 13, 2019 7:42 pm
Forum: Chassis and Suspensions
Topic: Chassis Speed Building - Records and Methods
Replies: 17
Views: 918

Re: Chassis Speed Building - Records and Methods

Mmm... Definitely not the quickest - the Ivatt 2 tank chassis I've almost finished was started in 1995! Perhaps the slowest build ever? Actually, I had it running years ago, so not the whole 24 years to reach the stage Knuckles specified. Since I model purely as a hobby, speed is not a consideration...
by Dave Holt
Mon May 13, 2019 7:29 pm
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

Julian. Sorry if I've caused any confusion by using different terminology but the method of springing is exactly the same as the Crab, or rather the Crab is the same as this, as this was the first loco to use the diagonal hair pin springs (also recommended by Brassmasters for their Ivatt truck etch)...
by Dave Holt
Sun May 12, 2019 2:22 pm
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

The chassis is almost complete, now. Just the cylinder drain cocks to represent. Needless to say, rather like the injectors, I cannot find any suitable commercial product for these. Brassmasters do a very neat cast brass LMS drain cock casting, but unfortunately they have a different operating arran...
by Dave Holt
Thu May 09, 2019 2:57 pm
Forum: Other Buildings and Scenery
Topic: Alpha Mill
Replies: 130
Views: 18181

Re: Alpha Mill

[quote="ralphrobertson"]Howard Bolton and Dave Holt have already provided details about the engines and Howard has provided his 3D animation shown earlier in this thread for us to produce the engine - if we can. Many thanks gentlemen for your help on this. One of our members, Chris Morgan,...
by Dave Holt
Sat May 04, 2019 8:39 am
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Re: Ivatt Class 2 2-6-2 tank

Hi Andrew. The coal bunker is off at present. It's a separate moulding and hadn't been well aligned at the factory on my model. Luckily, I managed to prise it off without damage, to be re-fitted later. I wouldn't worry about the injectors. To be honest, from a couple of feet away, you can't really m...
by Dave Holt
Fri May 03, 2019 7:44 pm
Forum: Steam Locomotives
Topic: Ivatt Class 2 2-6-2 tank
Replies: 18
Views: 1419

Ivatt Class 2 2-6-2 tank

Having completed the BR Standard 2 tank recently. my attentions have turned to finishing the Ivatt version, which I actually started before the Standard. For some years it has remained as a running loco but devoid of the finer details but I have now made some progress towards completion. The model c...
by Dave Holt
Thu Apr 18, 2019 2:16 pm
Forum: Jeremy Suter
Topic: Turning a chimney
Replies: 19
Views: 1579

Re: Turning a chimney

Presumably, one could use the ball cutter to remove the bulk of the material and then use a smaller cutter, file, or burr to create the smaller radius and blend in to the larger? Still looks a lot easier than trying to do it all by hand.
Dave.
by Dave Holt
Mon Apr 15, 2019 7:57 pm
Forum: Layouts and Operations
Topic: Bristol Barrow Road
Replies: 56
Views: 7607

Re: Bristol Barrow Road

Wow, Robin.
Irrespective of the double slip issue, that loco certainly runs an absolute treat. I doubt any of mine would roll along so smoothly at that speed.
Lovely.
Dave.
by Dave Holt
Fri Mar 22, 2019 8:35 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

[quote="Julian Roberts"] so the end of the superfluous mystery part 35 was just the job. Ah, yes! The mysterious parts 35. Superfluous, as you say. I think parts 35 are the counterbalance arms fitted to the reversing wey-shaft, between the frames of the prototypes. They show up on the the ...
by Dave Holt
Fri Mar 22, 2019 8:22 pm
Forum: Manchester AG
Topic: Progress with Slattocks Junction
Replies: 86
Views: 24465

Re: Progress with Slattocks Junction

Really enjoyed the visit and the chance to run some locos. Thanks to all involved. The mill looks even better in real life than in Ralph's photos and is a marvelous and evocative backdrop helping set the scene firmly in the Greater Manchester area. Wonderful day out and a great layout in the making....
by Dave Holt
Thu Mar 21, 2019 9:12 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

[quote="Julian Roberts"] Re the Ultrascale system in general, I suppose the chance of getting properly perpendicular cranks is much higher. I find that is a bit chancy with the AGW system however careful I try to be. (Edit - Philip has already mentioned this plus solution) Julian, Sorry if...
by Dave Holt
Tue Mar 19, 2019 2:43 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

It is not clear from their site whether the long or short bushes would suit. They are all inside cylinder locos. Jol Jol, The short bushes are 1.25 mm long on the bearing surface. That should be plenty just for coupling rods. I've explained earlier in the thread how I use these on unmodified Gibson...
by Dave Holt
Tue Mar 19, 2019 10:42 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

I doubt that the complexity of load bearing pony truck will repay the complexity they introduce with any visible improvement in the running properties of the loco, CSB fitted or otherwise. Will, We clearly have differing views on this and that's fine. The key thing is to have satisfactorily running...
by Dave Holt
Tue Mar 19, 2019 10:27 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

Jol, I experienced the exact same problem with my first two locos. They would run sweetly, then after disassembly and reassembly, during construction, they would bind and limp along. The loose fitting AG bushes were determined to be the problem. This appeared to be made worse if the bush was shorten...
by Dave Holt
Mon Mar 18, 2019 8:18 pm
Forum: Layouts and Operations
Topic: Brettell Road
Replies: 523
Views: 90742

Re: Brettell Road

Jim,
That's quite a transformation - toy to model. Now actually looks like a real loco.
Dave.
by Dave Holt
Mon Mar 18, 2019 3:00 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

I rarely use Ultrascale wheels, but they were supplied for a Panier chassis I did recently in EM for Pendon. I don't recall any problems using my GW wheel press, so the crank pin screws must have been secure in the wheels. On this basis, i would question whether their wheels have a 14BA clearance ho...
by Dave Holt
Mon Mar 18, 2019 11:16 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

Just for clarity, when i said I generally spring pony trucks, I should have said that I spring the axle in pony trucks. I don't allow the truck frame (or bogie frames from that matter) to bob up and down relative to the main frames. I don't like to see daylight between trucks/bogies and the loco cha...
by Dave Holt
Sun Mar 17, 2019 2:11 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 31844

Re: Crab Comet conversion

Julian. Yes, you're quite right; I use 14BA crank pin screws - either from the Ultrascale packs or from a bag of 100 i bought from Squires some years ago. I have to admit that I was under the impression that 14BA and M1 were sufficiently similar to be compatible, but apparently not. On the subject o...
by Dave Holt
Thu Mar 14, 2019 11:33 pm
Forum: Steam Locomotives
Topic: Locomotive fire irons
Replies: 14
Views: 1211

Re: Locomotive fire irons

Ian, Thanks for that information. The table of lengths is rather interesting, particularly the range of lengths of the different items for the larger locos. I had originally assumed that they would all relate to the length of the firebox but that clearly wasn't the case for the Castle and Hall locos...
by Dave Holt
Thu Mar 14, 2019 4:05 pm
Forum: Other Buildings and Scenery
Topic: Alpha Mill
Replies: 130
Views: 18181

Re: Alpha Mill

I'm fairly sure that is the Manor - the Devon is not on a sloping site and there were no electrification cables over the boiler house as it was steam driven up to closure in 1962. I never saw the engine though I do have the maker's plate in my garage! Best Wishes,[/quote] Howard, You're absolutely r...
by Dave Holt
Tue Mar 12, 2019 8:40 pm
Forum: Other Buildings and Scenery
Topic: Alpha Mill
Replies: 130
Views: 18181

Re: Alpha Mill

I was just about to post a photo of the Regent when I saw Howard's comment. So, here is an internal view of the back end window of the Regent (by Watkins). (Don't you just wish you'd done a mill with an inverted vertical engine?) Regent eng hse rear window.jpg These are the best I can do for the Dev...

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