Search found 262 matches

by andrewnummelin
Sun Jun 14, 2020 11:38 am
Forum: Other Workshop Practice
Topic: A machining question.
Replies: 9
Views: 1886

Re: A machining question.

Gents, Thanks for the advice and questions that have made me think... Accuracy needed? Visually irrelevant, good enough to work - I've no idea what that means numerically! Number needed? Three (so six suspension links), so no need to think of "mass production" unless the carpet god gets ve...
by andrewnummelin
Fri Jun 12, 2020 8:25 pm
Forum: Other Workshop Practice
Topic: A machining question.
Replies: 9
Views: 1886

A machining question.

I was wondering if anyone could suggest a good method of making the part shown in "C" (with fittings) and "D" (plain) below: the side elevation is in "B", "C" and "D" are views from underneath. Capture.JPG My initial thoughts are milling (but I'm not...
by andrewnummelin
Wed Jun 03, 2020 12:21 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Little & Large 4 - The Socially-Distanced Challenge

Progress! And a request for help. Things have moved slowly as, to relieve the tedium of fiddly bits, I've also built a Slater's van kit that has been in the cupboard for over 10 years: and there was the garden and good weather! Little So the CAD drawing was resized differently in the x & y direc...
by andrewnummelin
Tue May 26, 2020 10:17 am
Forum: Wagons
Topic: Exactoscale wagon chassis kits
Replies: 13
Views: 2761

Re: Exactoscale wagon chassis kits

By chance I've been working with similar problems. As an interlude from the lockdown challenge I decided to do something simple and build a Slater's MR van kit and fit it with Exactoscale suspension bits that I've had in stock for many years. I used the conversion bits (solebar and W irons as single...
by andrewnummelin
Tue May 12, 2020 10:03 am
Forum: Track and Turnouts
Topic: Single and Double Slip Operation
Replies: 8
Views: 2248

Re: Single and Double Slip Operation

If you want to have a nice plan drawn with software then Templot, but for this purpose pencil and paper is much quicker if you have a scanner. Without a scanner a sketch using 'Paint' will also do. Suggest using coloured pencils - at least three, one for each "+ve and -ve" and one for the...
by andrewnummelin
Mon May 11, 2020 9:54 am
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Re: Little & Large - The Socially-Distanced Challenge

... I made up a true faceplate from a lump of brass to secure the tyre to with double sided tape, having removed the moulded centre, after all I was only taking gentle cuts, and I wanted to be able to remove the tyre without distortion. It took a fair time even taking a fraction off at a time, and ...
by andrewnummelin
Sun May 10, 2020 12:12 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Little & Large 3 - The Socially-Distanced Challenge

Two steps forward and seven steps back Large The profiles and other bits ordered from Eileen's arrived quickly but nothing has been done with them yet fortunately! Little A start was made with the wheel sets: to check that everything else would work, I decided to use standard wheels first before em...
by andrewnummelin
Fri May 01, 2020 7:11 am
Forum: On My Workbench
Topic: Socially Distanced Challenge – CR Class 488 Build
Replies: 59
Views: 9760

Re: Socially Distanced Challenge – CR Class 488 Build

Lovely.
I’m looking forward to following this as I’ve a wish to model an 0-4-4WT (with open cab) and have always thought that hiding the motor and gearbox could be a challenge, as will getting the balance right to keep it on the track and able to pull a decent load.
by andrewnummelin
Sun Apr 26, 2020 7:03 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Little & Large 2 - The Socially-Distanced Challenge

Not much progress to report as the weather has meant the garden took priority! Still some things have been done. little and large 002.jpg Little Solebars and one headstock have been fitted to the floor. The second headstock can probably only be fitted once the underframe is running OK as it will blo...
by andrewnummelin
Fri Apr 17, 2020 12:23 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Little & Large - The Socially-Distanced Challenge

LITTLE It became clear as I was doing the model drawing that the original had highly detailed and dimensioned boxes but the underframe was probably best regarded as the equivalent of a loco weight diagram - a good impression but not necessarily correct in all aspects. So the changes & assumptio...
by andrewnummelin
Thu Apr 16, 2020 10:05 am
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Re: Little & Large - The Socially-Distanced Challenge

Penrhos1920 wrote:Cambrian do the axleboxes on their GWR bogies, the last proprietor sold them separately. Rhymney Models also offer them as castings.

Many thanks for the leads. I hadn't realised that Rumney Models did anything other than items much too modern for my projects! I'll contact Justin for information.
by andrewnummelin
Tue Apr 14, 2020 6:09 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Re: Little & Large - The Socially-Distanced Challenge

can I turn the stanchions? I have doubts about my abilities. Looking at the drawing Andrew, the stanchions look to be parallel above the solebar so they may have just slide into the "socket". Perhaps a plain length of rod/wire of the appropriate diameter and a piece of tube to suit. This ...
by andrewnummelin
Sun Apr 12, 2020 12:14 pm
Forum: andrewnummelin
Topic: Little & Large - The Socially-Distanced Challenge
Replies: 33
Views: 7894

Little & Large - The Socially-Distanced Challenge

Well here goes. The "little" one is a Taff Vale Railway wagon with iron boxes for carrying coal, the drawing being dated 1851 was numbered 4845 in the old BR/OPC collection and I also have a copy of drawing 4846 that shows a slightly different design box. TVR coal box wagon trimmed.jpg The...
by andrewnummelin
Sun Apr 05, 2020 11:45 am
Forum: On My Workbench
Topic: The Socially-Distanced Challenge - Registration Thread
Replies: 47
Views: 10576

Re: The Socially-Distanced Challenge - Registration Thread

Little and Large I should really start anything else - my shelf of shame with unstarted kits and part started projects runs to around a hundred items... But here goes anyway! Two drawings that I've had for a very long time, one small and one large wagon with some challenges, particularly in the are...
by andrewnummelin
Wed Apr 01, 2020 10:31 am
Forum: Where to Find?
Topic: Marking gauge?
Replies: 25
Views: 3869

Re: Marking gauge?

Here's mine with a frame spacer marked out with it. marking gauge.jpg If I were making another I'd make the guide a bit bigger and possibly have it on a screwed thread to make precise adjustments a little easier. Perhaps, without a lathe, start with a threaded rod, nut for the guide, lock nut to hol...
by andrewnummelin
Sun Mar 15, 2020 10:51 am
Forum: Exhibitions
Topic: 7th Chris Kedgley Skills Day
Replies: 34
Views: 7096

Re: 7th Chris Kedgley Skills Day

From me as well, very many thanks to all involved with putting on an excellent event. I went hoping to pick up some ideas for solving some of my problems and came away with those and quite a number of extra items as well.

Roll on the next one! (The hunt starts for topics to bring.)
by andrewnummelin
Sun Mar 08, 2020 2:10 pm
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 2879

Re: end steps

Couple of photos here of a cast of an RTR backhead. Note in particular the thin shelf above the firehole door. (The regulator, by the way, is a separate fitting.) 20200306_164456.jpg 20200306_164416.jpg I would use Bill Bedford's suggestion to produce 5 or so masters, and then cast them all at once...
by andrewnummelin
Sun Mar 08, 2020 2:04 pm
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 2879

Re: end steps

Thanks guys. I'm pretty confident that I would never be able to cut enough individual steps consistently by hand before deciding to take up a different hobby. So I think it will be a case of drawing them up and waiting until I can put enough (different) items on one sheet to make it worthwhile havi...
by andrewnummelin
Fri Mar 06, 2020 9:01 am
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 2879

Re: end steps

Have you thought about making a master, moulding it and casting them in resin? You might have a high failure rate at the actual casting stage, and they'd be fragile in life, but it should be possible - I've cast down to 10 thou before, albeit for parts which will not be knocked. Thanks for the sugg...
by andrewnummelin
Fri Mar 06, 2020 8:58 am
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 2879

Re: end steps

Just thought that I would mention that It looks to me as if the drawing and the photograph do not correspond. The drawing shows a semi-circular vertical part of the footstep whereas the photo looks more rectangular with rounded corners. Steve Correct. They are different designs for 2 different sets...
by andrewnummelin
Thu Mar 05, 2020 7:18 pm
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 2879

Re: end steps

Thanks guys. I'm pretty confident that I would never be able to cut enough individual steps consistently by hand before deciding to take up a different hobby. So I think it will be a case of drawing them up and waiting until I can put enough (different) items on one sheet to make it worthwhile havin...
by andrewnummelin
Thu Mar 05, 2020 7:11 pm
Forum: andrewnummelin
Topic: 0-4-0STs
Replies: 10
Views: 3312

Re: 0-4-0STs

Interesting 'crankpin jig'. Could you provide some more details? ... The idea is a variation on the GW Models concept. I felt that I did not have the skills to modify the GW one for small crankpin throws. I started with the largest diameter brass bar that I had and turned the two major components o...
by andrewnummelin
Thu Mar 05, 2020 4:13 pm
Forum: andrewnummelin
Topic: 0-4-0STs
Replies: 10
Views: 3312

Re: 0-4-0STs

Very interesting and it looks great. I'm just building one of these myself, also with an Ambis chassis. At the Stevenage show I saw that Alan's latest version of that chassis kit is now in Nickel Silver and does include rods, so even more of a bargain! Looking very nice Stuart. Are you finishing it...
by andrewnummelin
Mon Mar 02, 2020 11:03 am
Forum: andrewnummelin
Topic: 0-4-0STs
Replies: 10
Views: 3312

0-4-0STs

Having got into difficulties with a couple of projects I decided to try something simple and build a couple of kits of simple locos so I started in the autumn in Great Missenden and all went well to start with. I found some problems with the design of one kit and subsequently I realised that I'd als...

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