Search found 696 matches

by Paul Townsend
Mon Jun 24, 2019 5:50 am
Forum: Andrew Ullyott
Topic: Cheddar
Replies: 54
Views: 18505

Re: Cheddar

Those of you who have seen Highbridge know that many of the town "non-railway" buildings are still temporary card mockups. The final versions and new buildings for Dartmouth need to be roofed appropriately so I am in the market for decent tile sheets for Somerset and S. Devon. I believe th...
by Paul Townsend
Fri Jun 21, 2019 5:04 pm
Forum: barrowroad
Topic: Uncompensated 16T Bachmann Minerals in P4
Replies: 23
Views: 5752

Re: Uncompensated 16T Bachmann Minerals in P4

Paul, I'm fascinated by your magic formula for wagon weight which I've never seen before - was it in a very early issue of the standards or have I just missed it? DaveB It predates Scalefour Society but was the recommendation of its predecessor, The Protofour Society which is where I started before...
by Paul Townsend
Fri Jun 21, 2019 7:34 am
Forum: barrowroad
Topic: Uncompensated 16T Bachmann Minerals in P4
Replies: 23
Views: 5752

Re: Uncompensated 16T Bachmann Minerals in P4

Paul, The target weight of my unloaded Bachmann 16T wagons is 22/23g. I have now made removable loads of coal for all the wagons which weigh 10/11g so the finished weight is between 32g and 34g. My Bachmann 4F will just cope with the 1000g train on the gradients and curves on my layout. Robin Inter...
by Paul Townsend
Thu Jun 20, 2019 8:48 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Tim V wrote:All this correspondence - must be an article in there somewhere ...

I will be willing to report to Snooze on my trials mentioned above, when completed, so several months away.
by Paul Townsend
Thu Jun 20, 2019 8:21 am
Forum: barrowroad
Topic: Uncompensated 16T Bachmann Minerals in P4
Replies: 23
Views: 5752

Re: Uncompensated 16T Bachmann Minerals in P4

steamraiser wrote:Have you tried propelling them?

Gordon A


And what is your finished weight?
by Paul Townsend
Mon Jun 17, 2019 9:10 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Xylene is particularly hazardous in part because it is so volatile. That is why it makes a good paint thinner but also means if you spill a puddle it evaporates very quickly and gets into your lungs quicker than many other solvents would do. ALL the organic solvents we use or might use should be use...
by Paul Townsend
Sun Jun 16, 2019 8:27 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 28748

Re: Resistance Soldering

Michael, the RSU's on Ebay at present are all from the USA and mostly of the expensive American Beauty brand. For those who prefer to do their own thing and save money, there are various websites and forums describing how to make RSUs from car battery chargers, microwave ovens, etc. Otherwise there...
by Paul Townsend
Sun Jun 16, 2019 8:04 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

In my yesterday’s look at solvents I referred to an apparently useful table of common solvents and their dielectric constant on a favourite website: https://www.engineeringtoolbox.com/liquid-dielectric-constants-d_1263.html I have used this site often and found it usually reliable so was sad to find...
by Paul Townsend
Sun Jun 16, 2019 7:46 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Regarding graphite, it is recommended in the article to be used very sparingly.

I have had adhesion concerns but have now committed to the objective test with a very little bit of it.
by Paul Townsend
Sat Jun 15, 2019 11:14 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Meanwhile I've been looking at a can of Halfords Surface Cleaner which I've had for some time but not used much. According to the SDS sheet, its ingredients are Naphtha (petroloeum) hydrotreated light 30-60%, Propan-2-ol (IPA) 10-30%, and Xylene 5-10%. It also contains Propane 10-30%, Butane 5-10%,...
by Paul Townsend
Sat Jun 15, 2019 10:37 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

I’ve been using a wine cork sliced in half the long way. It cleans the muck off but does not abrade the rail head. The good part is that when the old one wears out all you need is a fresh bottle of wine (screw tops don’t work). Cheers, David We have a copious supply of these tools, only retained fo...
by Paul Townsend
Sat Jun 15, 2019 10:33 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Interesting, looks like the guy may have invented graphene. I've never been convinced by the suggestion you would significantly damage your rails with an light abrasive cleaning method. A view reinforced by exhibiting a layout for 15 years about 4 times a year with regular use in-between shows. Ple...
by Paul Townsend
Sat Jun 15, 2019 10:19 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

I am the guilty party who forwarded the article to the East of Scotland group. I did so because it appeared to be scientifically based rather than the usual anecdotal evidence, often presented as “fact” Jim P Thanks to jasp and SteamRaiser for propagating the article....plenty of food for thought t...
by Paul Townsend
Sat Jun 15, 2019 10:17 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

I am very glad to see some objective work done at last on this issue which affects us all so much. The only previous attempts that I have seen to analyse this have been by the makers of CMX tankers. Someone did publish an analysis of the contents of the black gunge years ago but didn't really offer ...
by Paul Townsend
Sat Jun 15, 2019 9:21 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Guy Rixon wrote:Some switch cleaners dissolve plastics, particularly polystyrene. Does the WD40 contact-cleaner do that?

The manufacturers spec sheets say no, to plastic in general.
I would want to test it on any particularly fragile plastic, especially expanded poystyrene.
by Paul Townsend
Fri Jun 14, 2019 5:54 pm
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Re: Track cleaning

Edited to add that when I opened the article in Open Office the formatting was so sadly awry as to render the text almost incomprehensible. I have cleaned it up for my own use, and if anyone else is having this problem I could post my version as a .pdf file. Yes please. I use Libre Office and it ha...
by Paul Townsend
Fri Jun 14, 2019 4:39 am
Forum: Tools and Techniques
Topic: Track cleaning
Replies: 68
Views: 13173

Track cleaning

Steamraiser recently reported to the Bristol AG that he has seen a report that rail cleaning with Propanol aka “ IPA” to us, is bad practice.

As I am a long user of this I am keen to see the original article.
Does anyone know the source?
by Paul Townsend
Fri Jun 14, 2019 4:24 am
Forum: Paul Townsend
Topic: Highbridge Wharf
Replies: 3
Views: 2869

Re: Highbridge Wharf

Thanks for your kind comments, you must join us for a visit once the Wharf is operational. To my shame, signal modelling at Highbridge has long suffered from shortage of roundtuits. None are operational, yet. I have loads of info and photos ready to bring them up to the standard expected by Chris Os...
by Paul Townsend
Wed Jun 12, 2019 12:46 pm
Forum: Paul Townsend
Topic: Highbridge Wharf
Replies: 3
Views: 2869

Highbridge Wharf

Highbridge Wharf report About 30 years after I should have done it, I am making good progress adding the Wharf sidings. My best excuse for the long delay is too much time spent playing trains! Here are two exciting ( for me :D ) piccy of todays test rig of the second baseboard, done to check it fits...
by Paul Townsend
Wed Jun 12, 2019 10:15 am
Forum: Guest Book
Topic: REF: Rail wheel profile and "to do" list update
Replies: 26
Views: 6430

Re: REF: Rail wheel profile and "to do" list update

I reckon you would have got away with just replacing the switches and a very small repositioning of the stock rail on existing rivets.
by Paul Townsend
Tue Jun 11, 2019 9:47 am
Forum: Tools and Techniques
Topic: Eames 40 flux
Replies: 10
Views: 3069

Re: Eames 40 flux

Loads on Ebay.
I have used home brew for years, recipe as in Phil's quote
by Paul Townsend
Sun Jun 09, 2019 9:30 am
Forum: Steam Locomotives
Topic: Dapol LSWR B4 0-4-0T
Replies: 23
Views: 7321

Re: Dapol LSWR B4 0-4-0T

Jeremy Good wrote:
More anon.

Jeremy


Can you update us on your progress?
by Paul Townsend
Sat Jun 08, 2019 5:41 pm
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 28748

Re: Resistance Soldering

David B wrote:I was at Warminster as well - sorry we did not meet.


Oh yes you did !
Too much excellent cake has rotted your memory ;)
by Paul Townsend
Thu Jun 06, 2019 5:00 pm
Forum: Andrew Ullyott
Topic: Cheddar
Replies: 54
Views: 18505

Re: Cheddar

Thanks John, that worked fine.
by Paul Townsend
Thu Jun 06, 2019 4:07 pm
Forum: Track and Turnouts
Topic: Gauge widening with C&L plastic track
Replies: 4
Views: 1585

Re: Gauge widening with C&L plastic track

The triangular gauges used with inclined rail need the length of the tongues reducing....how much depends on the source. You only need reduce the inners but its Ok to do both. File, saw, grind as available tools.

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