Search found 12 matches

by PhilipT
Thu Jul 18, 2019 6:38 pm
Forum: Starting in P4
Topic: Track Laying
Replies: 31
Views: 1219

Re: Track Laying

Always used butanone without problems.
by PhilipT
Thu Jul 18, 2019 12:01 pm
Forum: Starting in P4
Topic: Track Laying
Replies: 31
Views: 1219

Re: Track Laying

When I did organic chemistry at school in 1960-62, methyl ethyl ketone (MEK) was the nomenclature. Subsequently systematic naming of organic compounds was adopted which gave us butanone, or more correctly butan-2-one (not 2-butanone unless that's a recent change). Butan-2-one indicates that the keto...
by PhilipT
Wed Jul 17, 2019 3:37 pm
Forum: Starting in P4
Topic: Track Laying
Replies: 31
Views: 1219

Re: Track Laying

The original query referred to both wooden and plastic sleepers. I fully concur with the advice given about wooden sleepering, ie use plenty of butanone but the opposite is the case if using plastic (abs) sleepers. Here the need is to use the smallest amount of butanone which will do the job. The re...
by PhilipT
Thu Feb 07, 2019 3:03 pm
Forum: Steam Locomotives
Topic: MR 4F Tender [type C] 3,500 gallon
Replies: 9
Views: 899

Re: MR 4F Tender [type C] 3,500 gallon

Ambis do an etch which covers 4 types of Johnson 3,500 gallon sides and ends.
by PhilipT
Thu Feb 07, 2019 2:53 pm
Forum: Other Workshop Practice
Topic: Mini Cutting Broaches
Replies: 5
Views: 1729

Re: Mini Cutting Broaches

Last time I tried to buy something from Cousins they were "trade only"
by PhilipT
Mon Jul 30, 2018 2:06 pm
Forum: Coaches and NPCS
Topic: BR CCT's
Replies: 14
Views: 1995

Re: BR CCT's

………..or maybe not. I can't speak for CCTs but the colour of ends on some -ex LMS vehicles well into the BR period could depend upon which works did the painting, an example being pull and push driving trailer ends which could be red (Derby??) or black (Wolverton??). Finding a photograph of the end o...
by PhilipT
Tue Jun 26, 2018 2:54 pm
Forum: Diesel and Electric Locomotives
Topic: Bachmann LMS twin conversion.
Replies: 47
Views: 13492

Re: Bachmann LMS twin conversion.

I've no experience of the Branchlines P4 wheels but when I did the same EM conversion a few years ago I found that assembling the wheels onto the gear/muff gave a BB dimension which was 0.5mm greater than it should have been. I was told by Brian at Branchlines that these were intended originally for...
by PhilipT
Wed Jun 13, 2018 3:21 pm
Forum: Tools and Techniques
Topic: Solvents
Replies: 8
Views: 1707

Re: Solvents

Also meths (the violet coloured variety) which, besides being a very gentle solvent, also contains pyridine. I was told many years ago by an adhesives researcher that pyridine acts as a catalyst for the polymerisation (ie setting) of cyano.


Phil
by PhilipT
Fri Mar 30, 2018 6:32 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 115
Views: 17272

Re: Turnout construction - Question here please.

You're right - it's just that mine doesn't work.
by PhilipT
Fri Mar 30, 2018 2:06 pm
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 115
Views: 17272

Re: Turnout construction - Question here please.

When I use my filing jig for soldering I find that the two rails don't quite line up in the vertical plane (presumably the grooves are very slightly out and this is magnified by the rails hanging off the end of the jig) - I then have to apply a slight twisting downward pressure on the jig against a ...
by PhilipT
Sun Feb 25, 2018 8:05 pm
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 6367

Re: Flange thickness-effect of.

Besides I would not want to suggest that EM wheels on P4 track is "correct".

Fully agree,

Phil
by PhilipT
Sun Feb 25, 2018 11:52 am
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 6367

Re: Flange thickness-effect of.

A couple of quick points: 1 RP25-100 exists only in Romford/Markits - it is not listed in the NMRA table which Julian quotes. It is, in fact, RP25-110 with a wheel thickness of 0.100". It only works satisfactorily on EM trackwork because the root radius of the Romford/Markits flange is less tha...

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