Search found 185 matches

by andrewnummelin
Sun Mar 05, 2017 9:20 pm
Forum: andrewnummelin
Topic: A railmotor or two - using the skills of others - etching
Replies: 13
Views: 4739

A railmotor or two - using the skills of others - etching

I'm not quite sure whether this is the most appropriate place for this topic - bits may be better in "Railmotors, Railcars and Multiple Units" and others in "Tools and Techniques", but as Jeremy Suter has put his fascinating thread https://www.scalefour.org/forum/viewtopic.php?f=...
by andrewnummelin
Sun Mar 05, 2017 7:10 pm
Forum: Jeremy Suter
Topic: GWR Steam Railmotor Chassis
Replies: 226
Views: 47003

Re: GWR Steam Railmotor Chassis

I'm really looking forward to following this thread as I'm about to start on a similar project and avoiding reinventing the wheel is going to be really important if I am to achieve my target. In particular, the bogie suspension and the valve gear are going to be interesting. I can't check at the mom...
by andrewnummelin
Sat Jan 21, 2017 6:14 pm
Forum: Layouts and Operations
Topic: Brettell Road
Replies: 535
Views: 106923

Re: Brettell Road

a quick video of the inside motion JFz3N2BgLeI Sickening..... makes me think I'd be better switching to gardening! I've had a go a two outside framed locos and made a mess of both chassis, the third one planned was also intended to have inside motion - now I know what I have to aim for! I'm curious...
by andrewnummelin
Fri Jan 13, 2017 9:18 am
Forum: Nottingham Area Group (NAG)
Topic: NAG Lathe Workshop for Beginners 7th January 2017
Replies: 9
Views: 2556

Re: NAG Lathe Workshop for Beginners 7th January 2017

The Amateur's Lathe is widely available on a well-known on-line auction site - I've been meaning to pick up a copy for some time, and since it has once again failed to surface as a Christmas or Birthday present maybe I'd better start bidding now, before they all get snapped up by Terry's recommenda...
by andrewnummelin
Mon Dec 12, 2016 9:02 pm
Forum: Tools and Techniques
Topic: alternative to glue?
Replies: 5
Views: 1719

alternative to glue?

My wife spotted this and wondered if I would be interested.
https://gemmojo.com/products/wow-instant-fix?variant=26479143169

Has anyone experience with this product?
by andrewnummelin
Mon Oct 17, 2016 10:09 am
Forum: Baseboards and Carpentry
Topic: whats the state of the art in baseboards
Replies: 27
Views: 8832

Re: whats the state of the art in baseboards

Don't do what I did! Do plan extra carefully, if possible do a 3D drawing and include all the under baseboard bits including your hand. To make a simple layout more interesting I thought that the jigsaw concept would allow the easy replacement of a bit to show different periods - in my case the addi...
by andrewnummelin
Fri Sep 23, 2016 9:41 am
Forum: Armchair Modeller
Topic: Prickley Pear GNSR First (Sort Of) and Friends
Replies: 5
Views: 2339

Re: Prickley Pear GNSR First (Sort Of)

... My theory is that a 3-point suspension will be far more satisfactory if both wheels on one side of a 4-wheeled vehicle are compensated instead. I am sure someone must have thought of it long before me. This brings back happy memories from more decades ago than I care to count - when still in sc...
by andrewnummelin
Fri Sep 02, 2016 3:16 pm
Forum: Chassis and Suspensions
Topic: for those interested in sprung bogies or motorbikes...
Replies: 5
Views: 2211

for those interested in sprung bogies or motorbikes...

If you fancy a leaf sprung bogie without side frames you need to go about 20 minutes into the programme that will only be available on line for about 2 weeks. I stumbled across this by chance and, although mainly off-topic, I thought some of you might be interested anyway. Regard it, if you like, as...
by andrewnummelin
Wed Aug 24, 2016 9:40 pm
Forum: andrewnummelin
Topic: off my workbench
Replies: 0
Views: 1129

off my workbench

Following on from the tidy-up (see "Relics") I thought I ought to do something about some old models - these were all very nearly completed before a change of country and it has taken until now to get round to finishing them off! DSC03707.JPG The 4 in the front row are scratch built and th...
by andrewnummelin
Thu Aug 04, 2016 12:05 pm
Forum: andrewnummelin
Topic: Relics
Replies: 0
Views: 1059

Relics

Prompted in part by the anniversary appeal about old models, and partly by a tidy up of my storage during a forced break in painting a new model (perished airbrush hose), I thought I'd assemble a group of my early items. In the front row is what is left of my initial trials in P4 and in the back row...
by andrewnummelin
Fri Jul 29, 2016 9:09 am
Forum: Guest Book
Topic: P4 Starter Pack B: RCH 7 Plank Open
Replies: 23
Views: 10146

Re: A wagon tutorial - 2

Another excellent thread - I'm always finding something to learn and targets to aim at. In the spirit of getting things all right, I wonder if you have made a common mistake with the brake gear. I believe most wagons had the brake push rods perpendicular to the wheel treads, so not parallel to the s...
by andrewnummelin
Sat Jul 16, 2016 7:28 pm
Forum: Steam Locomotives
Topic: Wheels for GEM 2-4-0
Replies: 8
Views: 2081

Re: Wheels for GEM 2-4-0

Indeed 3 attractive little engines - pity you've only got 2 kits as there were also three clearly different stages, single bent sheet "cab", box like cab with new safety valves and the Westernised version. Wheels were 9 spoke (3' on GW rebuild) with 14 spoke drivers with the crankpin betwe...
by andrewnummelin
Sat Jul 16, 2016 5:32 pm
Forum: Wagons
Topic: CSP kit of GWR travelling oil gas tanks wagon DD4
Replies: 2
Views: 980

Re: CSP kit of GWR travelling oil gas tanks wagon DD4

Using things you probably have: http://makezine.com/projects/skill-builder-finding-the-center/ Using a special tool: http://www.robotroom.com/CircleCenter.html Easier with something that is flat than dished. Perhaps make a flat circle to fit inside the tube and use this as a drilling jig.
by andrewnummelin
Mon Jun 27, 2016 8:41 am
Forum: Tools and Techniques
Topic: First experiment with 3D printing including fluted boiler fittings.
Replies: 7
Views: 2304

Re: First experiment with 3D printing including fluted boiler fittings.

I've just downloaded you STL file and found that the spring hangers were not attached to the central sprue. If you are going to have these cast in brass, you are going to have to think about the spurs. For casting short stubby sprue are better than long thin ones. Which means that the boiler fittin...
by andrewnummelin
Fri Jun 24, 2016 9:24 pm
Forum: Tools and Techniques
Topic: First experiment with 3D printing including fluted boiler fittings.
Replies: 7
Views: 2304

Re: First experiment with 3D printing including fluted boiler fittings.

Mark & Rod,

Thanks for the suggestion on casting - I'll certainly look into this for future projects.
by andrewnummelin
Fri Jun 24, 2016 9:13 pm
Forum: Tools and Techniques
Topic: First experiment with 3D printing including fluted boiler fittings.
Replies: 7
Views: 2304

Re: First experiment with 3D printing including fluted boiler fittings.

grovenor-2685 wrote:
This forum will not allow the uploading of STL files so I can't include it here:

Just zip up the file and attach the .zip
Regards


I fogot! Must upgrade my memory.....

File attached.
by andrewnummelin
Wed Jun 22, 2016 8:50 pm
Forum: andrewnummelin
Topic: some other things
Replies: 14
Views: 4349

Re: some other things

Armchair Modeller wrote:I do like the boiler fittings - is there any chance some might be available, please?


I've posted a bit about them at http://www.scalefour.org/forum/viewtopic.php?f=7&t=4936#p46444 - let me know if you want any more information.
by andrewnummelin
Wed Jun 22, 2016 8:45 pm
Forum: Tools and Techniques
Topic: First experiment with 3D printing including fluted boiler fittings.
Replies: 7
Views: 2304

First experiment with 3D printing including fluted boiler fittings.

I have been posting on my workbench forum a bit about a loco I am trying to build ( http://www.scalefour.org/forum/viewtopic.php?f=100&t=4826#p46375 ) and a question was asked about the fluted boiler fittings so I thought it possibly better to post a little bit here. I attended a modellers' week...
by andrewnummelin
Sun Jun 19, 2016 4:29 pm
Forum: andrewnummelin
Topic: some other things
Replies: 14
Views: 4349

Re: some other things

This is the example of my poor modelling - I really must stop rushing to meet self imposed deadlines by not leaving everything till the last minute: New-Out99997-Pyramid Do Stack[1,0,1].jpg According to the RCTS this loco started as a banker from LLanhilleth to Crumlin on the Taff Vale extension of ...
by andrewnummelin
Fri Jun 17, 2016 9:13 pm
Forum: andrewnummelin
Topic: some other things
Replies: 14
Views: 4349

Re: some other things - 3D printing & CSBs

The paint is drying and the glue setting ...... so I should be able to box it up in the morning and take it to the AGM where I hope I will learn what I should have done differently! This project was a bit of an experiment - firstly putting to use some of what I learned at Great Missenden in March ha...
by andrewnummelin
Tue Jun 14, 2016 7:15 pm
Forum: Chassis and Suspensions
Topic: help on sprung csb chassis with cosmetic outside frames
Replies: 25
Views: 5843

Re: help on sprung csb chassis with cosmetic outside frames

.... This gives an overall width of 36.57mm which is probably out of gauge! (Prototype dimensions I have come across vary from 33.58 to 35.67 ). .... I'll report in my workbench page whether I not I succeed. I failed, thinning the Gibson cranks wasn't really an option. http://www.scalefour.org/foru...
by andrewnummelin
Tue Jun 14, 2016 7:09 pm
Forum: andrewnummelin
Topic: some other things
Replies: 14
Views: 4349

Re: some other things - csb's and outside frames

Work has been going on with the chassis and bodywork - more on that later. Further checking of clearances revealed that I had built the inside frames too close together which in turn caused the outside frames and bearings to be too close to the wheels.... so dismantle the chassis and rebuild with th...
by andrewnummelin
Sun Jun 12, 2016 7:35 am
Forum: Chassis and Suspensions
Topic: help on sprung csb chassis with cosmetic outside frames
Replies: 25
Views: 5843

Re: help on sprung csb chassis with cosmetic outside frames

...thickness of the laminated rods are deeper than the depth of the AG bush... Tim Until you get the longer bushes, and shorten as needed, you could invert the nut as the thin section is the same diameter as the bush following AG's advice on working where clearances are limited like behind cross he...
by andrewnummelin
Sun Jun 05, 2016 7:33 am
Forum: Where to Find?
Topic: 24mm's / 6' Wheels 20 Spoke with 12" Crankpin Throw
Replies: 27
Views: 4687

3D printing for 24mm's / 6' Wheels 20 Spoke with 12" Crankpin Throw?

I've seen on Shapeways web site that someone has produced a driving wheel in "steel" http://www.shapeways.com/product/GRVUZLGTX/57-inch-13-spoke-wheel-ho-thin-spoke?optionId=42096482 and I believe similar has been done in brass. Has anyone any information on: - can one achieve a ready to r...
by andrewnummelin
Thu Jun 02, 2016 10:24 pm
Forum: Track and Turnouts
Topic: Type of track ballast
Replies: 49
Views: 19071

Re: Type of track ballast

I've had the same problem and after a couple of attempts I ditched it. I can't remember where I saw the suggestion to use it, so can't go back to see if there were any advice on suitable adhesives.
I removed what I could and filled the remaining cracks with sand and PVA.

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