DJM Dave Posted March 3, 2014 Share Posted March 3, 2014 Hello everyone, Here's the latest updated cad/cam designs from china for the J94. of note are the single and double chassis webbing, alternate smokebox doors, and various other details. However, work still to do is to add the third set of chassis steps for the versions that had them, remove the gearbox from the underside of the boiler into the firebox, add recess for a drop in casting of the internal valve gear, adjust each version with the correct reversing rod, get the ladders changed to etched versions etc. As you can see, its 'nearly' there and as such if I can get these modifications changed within a week and unless someone spots that theres a huge mistake my old eyes have missed, i'll go to metal cutting then. It's worth noting there are 7 (yes seven) different versions being put into the tooling, so if any society or stockist would like a particular version as a special commission I can do that with relative ease. Cheers Dave Link to post Share on other sites More sharing options...
edcayton Posted March 3, 2014 Share Posted March 3, 2014 I don't understand why you are doing this one in 00 first Dave when there is a Hornby version. Surely an 0 gauge one would give you a USP ? Good luck with it anyway. Ed Link to post Share on other sites More sharing options...
Jon Gwinnett Posted March 3, 2014 Share Posted March 3, 2014 But likely lower volume to amortise development costs. A modern OO version will blow the Hornby, Ex-Dapol version out of the water, however good it was for its time. Did I see someone was doing Errol Lonsdale? Looks like I'll have a choice to make between that and a black BR one... Link to post Share on other sites More sharing options...
Roy L S Posted March 3, 2014 Share Posted March 3, 2014 I don't understand why you are doing this one in 00 first Dave when there is a Hornby version. Surely an 0 gauge one would give you a USP ? Good luck with it anyway. Ed Hi Ed I suspect the answer to that is that the 00 J94 will be by far the volume seller relative to the other scales and therefore the quickest route to generating cashflow. As Dave's new model will be "state of the art", DCC ready (and provision for sound I believe) with many of the different variants catered for I don't think the existence of the current Hornby model should be any deterrent.- it is a reasonable model but by modern standards it is now getting on a bit! Regards Roy Link to post Share on other sites More sharing options...
Paul.Uni Posted March 3, 2014 Share Posted March 3, 2014 Did I see someone was doing Errol Lonsdale? Looks like I'll have a choice to make between that and a black BR one... Yep, Kernow. My choice is between Errol Lonsdale and the RMWeb NCB no. 65. Link to post Share on other sites More sharing options...
RMweb Gold Stubby47 Posted March 3, 2014 RMweb Gold Share Posted March 3, 2014 Really, really silly question..... Is the weight on the centre wheel in the correct place - it seems very near the fitting for the connecting rod, whereas the other two wheels have these opposite. Stu Link to post Share on other sites More sharing options...
RMweb Gold The Stationmaster Posted March 3, 2014 RMweb Gold Share Posted March 3, 2014 Really, really silly question..... Is the weight on the centre wheel in the correct place - it seems very near the fitting for the connecting rod, whereas the other two wheels have these opposite. Stu JLTRT Stu Link to post Share on other sites More sharing options...
RMweb Gold Stubby47 Posted March 3, 2014 RMweb Gold Share Posted March 3, 2014 JLTRT Stu Can you use that acronym on this thread ??? Link to post Share on other sites More sharing options...
RMweb Gold The Stationmaster Posted March 3, 2014 RMweb Gold Share Posted March 3, 2014 Can you use that acronym on this thread ??? Apparently - as I just did (and it's not the first thread I've used it ). Saves wear on my typing finger too. Link to post Share on other sites More sharing options...
Andy Y Posted March 3, 2014 Share Posted March 3, 2014 I don't understand why you are doing this one in 00 first Dave when there is a Hornby version. Surely an 0 gauge one would give you a USP ? Good luck with it anyway. Ed It may be worth reading the original announcement topic http://www.rmweb.co.uk/community/index.php?/topic/75838-djmodels-announce-new-models-in-n-oo-and-o/ where it can be seen there will be an O gauge model (in due course) but there's a bigger market for 4mm and 2mm versions especially when made to contemporary performance and quality standards than a 25+ year old model which is more of a multi-coloured cash cow these days. The first three pics (for me and numerous others who've ordered them) are a good enough reason anyway. Link to post Share on other sites More sharing options...
Jon Fitness Posted March 3, 2014 Share Posted March 3, 2014 Apart from the ladders looking a touch "heavy", all versions look the proverbial dogs doo-dahs to me! Roll on the 7mm versions.. JF Edit..Oops, missed the ref to etched ladders! Perfect then.! Once I know which version I need for Bickershaws last one.... Link to post Share on other sites More sharing options...
RMweb Premium 5944 Posted March 3, 2014 RMweb Premium Share Posted March 3, 2014 The only thing that I can see wrong is that all versions have vacuum and steam heat pipes fitted. Other than that, looking good! Link to post Share on other sites More sharing options...
Horsetan Posted March 4, 2014 Share Posted March 4, 2014 Really, really silly question..... Is the weight on the centre wheel in the correct place - it seems very near the fitting for the connecting rod, whereas the other two wheels have these opposite. Er, yes, because that's the driving axle which carries some very heavy cranks as well as the eccentrics, so the balance weight needs to be set "down there" to even out any hammer blow. Link to post Share on other sites More sharing options...
RMweb Gold Stubby47 Posted March 4, 2014 RMweb Gold Share Posted March 4, 2014 Thanks Horse, and not really Mickey. I asked cos I didn't know and guessed it was both correct and there'd be a reason. I'm just not sure on the proposed livery shown... Link to post Share on other sites More sharing options...
RMweb Gold PaulRhB Posted March 4, 2014 RMweb Gold Share Posted March 4, 2014 I'm just not sure on the proposed livery shown... there's always full yellow if purple and blue aren't to your taste, anyway I thought they remind you of those bathroom furniture items you like modelling Link to post Share on other sites More sharing options...
davefrk Posted March 4, 2014 Share Posted March 4, 2014 Er, yes, because that's the driving axle which carries some very heavy cranks as well as the eccentrics, so the balance weight needs to be set "down there" to even out any hammer blow. And that's something that Bachmann took note of after their model of the MR 3F, they got it right on the 4F after having it pointed out. A lot of inside cylinder locos had the balance weights in positions other than opposite the crankpins but there are also the exceptions of-course, a small batch of 4Fs for instance had experimental inside crank positions.... Dave. Dave Franks. Link to post Share on other sites More sharing options...
34theletterbetweenB&D Posted March 4, 2014 Share Posted March 4, 2014 ... when made to contemporary performance and quality standards (rather) than a 25+ year old model ... I was less than excited by the subject selection - have the Hornby version of a BR J94 I need and got it running very sweetly - but having seen the CAD images I can hear the dangerous siren calls now. "Better rendering of the small detail", "Less intrusion into the underboiler void", "No air gaps through what should be solid structure". Link to post Share on other sites More sharing options...
Les1952 Posted March 4, 2014 Share Posted March 4, 2014 Why do I think the words "Cromford & High Peak" Only problem with Cromford and High Peak is you need oval buffers for that variant........ You can make the wooden cab shutters from bits of the floor of that wagon kit you threw at the wall when the sun melted it enough to never be straight again.......... All the very best Les Link to post Share on other sites More sharing options...
RJL Posted March 4, 2014 Share Posted March 4, 2014 Looking forward to getting one of these locos in the future. Link to post Share on other sites More sharing options...
RMweb Gold tomparryharry Posted March 4, 2014 RMweb Gold Share Posted March 4, 2014 Very nice Dave. I notice 7 variants.... Can you readily identify those variants, and give them mark numbers, etc, so we can buy (our) correct desire? Many thanks, Ian Link to post Share on other sites More sharing options...
hornbyandbf3fan Posted March 4, 2014 Share Posted March 4, 2014 The more I look at the design, the more I want one. Too many releases, not enough money! Link to post Share on other sites More sharing options...
Dogmatix Posted March 7, 2014 Share Posted March 7, 2014 Dave's new model will be "state of the art Well, almost... in my opinion (slanted by years of experience with Continental HO models) 'state-of-the-art' would mean NEM pockets on close-coupling mounts (extending on curves), which have been standard on Continental HO models for some thirty years. Link to post Share on other sites More sharing options...
RMweb Gold tomparryharry Posted March 11, 2014 RMweb Gold Share Posted March 11, 2014 Just wondering how long before someone does an add-on kit for the bits to make an IoW version..... Ian Link to post Share on other sites More sharing options...
RMweb Gold Dunsignalling Posted March 15, 2014 RMweb Gold Share Posted March 15, 2014 Well, almost... in my opinion (slanted by years of experience with Continental HO models) 'state-of-the-art' would mean NEM pockets on close-coupling mounts (extending on curves), which have been standard on Continental HO models for some thirty years. I'm not entirely convinced that extending mounts would really be needed/beneficial on such a short model. John Link to post Share on other sites More sharing options...
DJM Dave Posted May 6, 2014 Author Share Posted May 6, 2014 Hi everyone, I am pleased to say that barring anything obvious which my poor eyes have missed I'm now happy with the J94 model in OO gauge and have authorised for tooling to commence. I will further update my 'timeline' page of my website when I have further details. Cheers Dave Link to post Share on other sites More sharing options...
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