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by jjnewitt
Tue Feb 07, 2012 10:45 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Hi all, Thank you all for your kind words. I don't think I've mentioned it on here but Terry Bendall has invited me along to this years Scaleforum to do a demonstration on sprung diesel bogies as part of modelling the diesel and electric era. All my sprung diesels will be there and hopefully I'll ha...
by jjnewitt
Mon Feb 06, 2012 10:54 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Time to sort out the suspension for these bogies. Primary springs are 0.011" guitar wire simply soldered to the spring supports that were soldered and riveted to the sideframes. It was a bit of a pain to get the wire aligned properly as the spring bearers on top of the hornblocks are mostly onl...
by jjnewitt
Sun Jan 29, 2012 10:45 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Inbetween work on other things more progress has been made. Now that the sideframes are ready they can be formed into bogies. Alan Gibson P4 frame spacers were soldered to one corner of each sideframe and 5mm below the top of the sideframe. This was done with the aid of a strip of 5mm thick hardwood...
by jjnewitt
Tue Jan 24, 2012 11:41 pm
Forum: jjnewitt
Topic: Adventures in the land of fully sprung diesels
Replies: 102
Views: 38241

Re: Adventures in the land of fully sprung diesels

Hi Richard, The method of attachment varies depending on what the model had. I've tried to make use of whatever of the original I can to make life easy. The following is the Bachmann Warship. I took the locating lugs off the sides of metal chassis block to save grinding it out as per Mr Norgrove and...
by jjnewitt
Fri Jan 20, 2012 11:21 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Next job is to sort out the primary suspension foundations while things are easily accessible. The foundations consist of 3 (2.95 actual) x 1.5mm brass L section onto which the springs will be soldered. They need to be arranged so that the distance from the edge to the spring bearer on the hornblock...
by jjnewitt
Sat Jan 14, 2012 11:11 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Interesting how much these etches would actually cost John. I guess it comes down to personal preference as to what cost effective actually is situations like this and whether it's quicker for a pair or two of bogies to get the skrawker and piercing saw out or sort out etches. Etches would make thin...
by jjnewitt
Fri Jan 13, 2012 10:54 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Re: Sprung Class 47 Bogies

Hi all, Thanks Craig. Whenever you get time will be fantastic. Hope the new job's going well. Your drawing John looks pretty spot on. I should get around to learning CAD as it would make things a bit easier with things like this. My concern lies not in the difficulty but in my propensity to go a bit...
by jjnewitt
Thu Jan 12, 2012 10:24 pm
Forum: jjnewitt
Topic: Sprung Class 47 Bogies
Replies: 25
Views: 14306

Sprung Class 47 Bogies

Having had a nose through this section of the forum I've noticed that in the matter of chassis and suspensions it all seems to be about steam locos. Nothing really wrong with that but I thought I'd do my bit to redress the balance a little in the direction of the diesel and electrics! :) The latest ...
by jjnewitt
Thu Dec 15, 2011 11:14 pm
Forum: jjnewitt
Topic: Adventures in the land of fully sprung diesels
Replies: 102
Views: 38241

Re: Adventures in the land of fully sprung diesels

I've done some more work to the class 37 and have recently taken the underframe to pieces in order to paint it. I took the opertunity to get a pic of the bogies without the wheels and geartrain which hopefully will better illustrate the layout of the springs. Finished Bogies.JPG I manage to keep fin...
by jjnewitt
Sat Dec 10, 2011 11:17 pm
Forum: jjnewitt
Topic: Adventures in the land of fully sprung diesels
Replies: 102
Views: 38241

Re: Adventures in the land of fully sprung diesels

Hi Craig, Don't worry. That's a very nice collection of working timetables you've managed to gather some of which would indeed be really useful. My very embryonic layout will be set somewhere in the period 1963/65 and is based on a fictional secondary line to the north of Cardiff running between jus...
by jjnewitt
Mon Nov 14, 2011 10:29 pm
Forum: jjnewitt
Topic: Adventures in the land of fully sprung diesels
Replies: 102
Views: 38241

Re: Adventures in the land of fully sprung diesels

I haven't had any issues with the meshing on the gears on the class 37. I think the arrangement of the gears is pretty much the same as the AWD ones except that of course that only the two axle are powered. I've had a look at my Bachmann class 47 that will get the treatment at some point and the arr...
by jjnewitt
Sun Nov 13, 2011 10:58 pm
Forum: jjnewitt
Topic: Adventures in the land of fully sprung diesels
Replies: 102
Views: 38241

Adventures in the land of fully sprung diesels

Hi all, Over the past coulpe of years I have been working on a number of fully sprung diesels with some degree of sucess. They are reasonably straightforwrd to put together but they do take some time. If anyone is considering going down this route then I would definately recomend giving it a go. It ...
by jjnewitt
Sat Nov 12, 2011 11:07 pm
Forum: Diesel and Electric Locomotives
Topic: MRJ 188
Replies: 4
Views: 2897

Re: MRJ 188

I would thoroughly recomend that particular article. I was quite happy just building steam locos until I read it! Back issues of MRJ are easy enough to find http://britishrailwaybooks.co.uk/books/wildswan/modelrailwayjournal188.html for example. I frequently go back to mine. The bogies are reasonabl...

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